From 586bb6a03cbc5da4fdad94737e56cb52f5c88706 Mon Sep 17 00:00:00 2001
From: digitalduke <digitalduke@gmail.com>
Date: Tue, 25 Sep 2018 16:47:36 +0500
Subject: [PATCH 01/19] Update test_function_decorators.py (#7)

---
 src/functions/test_function_decorators.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/functions/test_function_decorators.py b/src/functions/test_function_decorators.py
index aaa6c912..1603a5ff 100644
--- a/src/functions/test_function_decorators.py
+++ b/src/functions/test_function_decorators.py
@@ -17,7 +17,7 @@ def test_function_decorators():
     # above together, we can build a decorator. In this example let's consider a function that
     # wraps the string output of another function by p tags.
 
-    # This is the function that we цфте to decorate.
+    # This is the function that we want to decorate.
     def greeting(name):
         return "Hello, {0}!".format(name)
 

From 446c66cd42680cccf21e380edf2758588569d851 Mon Sep 17 00:00:00 2001
From: Jery James Jacob Arangath
 <31083898+firebreath1001@users.noreply.github.com>
Date: Fri, 5 Oct 2018 08:55:10 +0530
Subject: [PATCH 02/19] Fixed a typo in the readme (#8)

changed "you're" to "you"
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index c7d5a1ee..b5da6a3c 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ def test_list_type():
 
 So normally you might want to do the following:
 
-- [Find the topic](#table-of-contents) you're want to learn or recap.
+- [Find the topic](#table-of-contents) you want to learn or recap.
 - Read comments and/or documentation that is linked in each script's docstring (as in example above). 
 - Look at code examples and assertions to see usage examples and expected output.
 - Change code or add new assertions to see how things work.

From 96590be4758e11cc1d4da9a65bc78b08faa90492 Mon Sep 17 00:00:00 2001
From: Neil Lee <nil008@ucsd.edu>
Date: Thu, 4 Oct 2018 21:32:51 -0700
Subject: [PATCH 03/19] Added simple descriptions to files missing descriptions
  (#9)

* Added simple descriptions to files missing descriptions at the top of the files.

Added simple descriptions/summary for test_class_objects.py, test_inheritance.py, test_method_objects.py, test_multiple_inheritance.py, test_file_methdos.py, test_file_reading.py, test_math.py

* removed trailing spaces
---
 src/classes/test_class_objects.py        | 3 +++
 src/classes/test_inheritance.py          | 3 +++
 src/classes/test_method_objects.py       | 3 +++
 src/classes/test_multiple_inheritance.py | 3 +++
 src/files/test_file_methdos.py           | 3 +++
 src/files/test_file_reading.py           | 4 ++++
 src/standard_libraries/test_math.py      | 2 ++
 7 files changed, 21 insertions(+)

diff --git a/src/classes/test_class_objects.py b/src/classes/test_class_objects.py
index 0c3ddf39..2d5a4cdb 100644
--- a/src/classes/test_class_objects.py
+++ b/src/classes/test_class_objects.py
@@ -1,6 +1,9 @@
 """Class Definition Syntax.
 
 @see: https://docs.python.org/3/tutorial/classes.html#class-objects
+
+After defining the class attributes to a class, the class object can be created by assigning the
+object to a variable. The created object would have instance attributes associated with it.
 """
 
 
diff --git a/src/classes/test_inheritance.py b/src/classes/test_inheritance.py
index c3e6a68b..5884da2c 100644
--- a/src/classes/test_inheritance.py
+++ b/src/classes/test_inheritance.py
@@ -1,6 +1,9 @@
 """Inheritance
 
 @see: https://docs.python.org/3/tutorial/classes.html#inheritance
+
+Inheritance is one of the principles of object-oriented programming. Since classes may share a lot
+of the same code, inheritance allows a derived class to reuse the same code and modify accordingly
 """
 
 
diff --git a/src/classes/test_method_objects.py b/src/classes/test_method_objects.py
index 9980f13b..1d4e66a9 100644
--- a/src/classes/test_method_objects.py
+++ b/src/classes/test_method_objects.py
@@ -1,6 +1,9 @@
 """Class Definition Syntax.
 
 @see: https://docs.python.org/3/tutorial/classes.html#method-objects
+
+Classes can have two types of attribute references: data or methods. Class methods are called
+by [variable_name].[method_name]([parameters]) as opposed to class data which lacks the ().
 """
 
 
diff --git a/src/classes/test_multiple_inheritance.py b/src/classes/test_multiple_inheritance.py
index 78889c35..2ad73f8d 100644
--- a/src/classes/test_multiple_inheritance.py
+++ b/src/classes/test_multiple_inheritance.py
@@ -1,6 +1,9 @@
 """Multiple Inheritance
 
 @see: https://docs.python.org/3/tutorial/classes.html#multiple-inheritance
+
+Some classes may derive from multiple classes. This means that the derived class would have
+its attributes, along with the attributes of all the classes that it was derived from.
 """
 
 
diff --git a/src/files/test_file_methdos.py b/src/files/test_file_methdos.py
index 51df5483..e2684472 100644
--- a/src/files/test_file_methdos.py
+++ b/src/files/test_file_methdos.py
@@ -1,6 +1,9 @@
 """Methods of File Objects
 
 @see: https://docs.python.org/3/tutorial/inputoutput.html#methods-of-file-objects
+
+Reading from a file does not always have to be sequential. There are methods to look for
+specific locations in the file, much like flipping to a page in a book.
 """
 
 
diff --git a/src/files/test_file_reading.py b/src/files/test_file_reading.py
index 02f51b4b..7a36a489 100644
--- a/src/files/test_file_reading.py
+++ b/src/files/test_file_reading.py
@@ -1,6 +1,10 @@
 """Reading and Writing Files
 
 @see: https://docs.python.org/3/tutorial/inputoutput.html#reading-and-writing-files
+
+The process of reading and writing to a file is like finding a book and opening a book.
+First, the file is located, opened to the first page, then reading/writing begins until it reaches
+the end of the file.
 """
 
 
diff --git a/src/standard_libraries/test_math.py b/src/standard_libraries/test_math.py
index 5dc0d08a..3aa33648 100644
--- a/src/standard_libraries/test_math.py
+++ b/src/standard_libraries/test_math.py
@@ -1,6 +1,8 @@
 """Math.
 
 @see: https://docs.python.org/3/tutorial/stdlib.html#mathematics
+
+Math module is useful as many math functions are already implemented and optimized.
 """
 
 import math

From fbc81f1e69a09d95f75ad1ce94a2bc03736afcd9 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Fri, 5 Oct 2018 07:34:09 +0300
Subject: [PATCH 04/19] Fix typo in filename.

---
 README.md                                                | 2 +-
 src/files/{test_file_methdos.py => test_file_methods.py} | 0
 2 files changed, 1 insertion(+), 1 deletion(-)
 rename src/files/{test_file_methdos.py => test_file_methods.py} (100%)

diff --git a/README.md b/README.md
index b5da6a3c..f36eb28e 100644
--- a/README.md
+++ b/README.md
@@ -110,7 +110,7 @@ written correctly.
     - [Raising Exceptions](src/exceptions/test_raise_exceptions.py) (`raise` statement) 
 9. **Files**
     - [Reading and Writing](src/files/test_file_reading.py) (`with` statement)
-    - [Methods of File Objects](src/files/test_file_methdos.py)
+    - [Methods of File Objects](src/files/test_file_methods.py)
 10. **Additions**
     - [The `pass` statement](src/additions/test_pass.py)
     - [Generators](src/additions/test_generators.py) (`yield` statement)
diff --git a/src/files/test_file_methdos.py b/src/files/test_file_methods.py
similarity index 100%
rename from src/files/test_file_methdos.py
rename to src/files/test_file_methods.py

From 81d07af0a5f9e600ad564e28d17fe36533e71755 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Sun, 25 Nov 2018 17:26:11 +0200
Subject: [PATCH 05/19] Add information about modules find path in Python.

---
 src/modules/test_modules.py  | 17 +++++++++++++++++
 src/modules/test_packages.py | 23 +++++++++++++++++------
 2 files changed, 34 insertions(+), 6 deletions(-)

diff --git a/src/modules/test_modules.py b/src/modules/test_modules.py
index 9160446e..7f919d61 100644
--- a/src/modules/test_modules.py
+++ b/src/modules/test_modules.py
@@ -14,6 +14,23 @@
 A module is a file containing Python definitions and statements. The file name is the module name
 with the suffix .py appended. Within a module, the module’s name (as a string) is available as the
 value of the global variable __name__.
+
+When the interpreter executes the import statement, it searches for module in a list of
+directories assembled from the following sources:
+
+- The directory from which the input script was run or the current directory if the interpreter is
+being run interactively
+- The list of directories contained in the PYTHONPATH environment variable, if it is set. (The
+format for PYTHONPATH is OS-dependent but should mimic the PATH environment variable.)
+- An installation-dependent list of directories configured at the time Python is installed
+
+The resulting search path is accessible in the Python variable sys.path, which is obtained from a
+module named sys:
+
+>>> import sys
+>>> sys.path
+
+@see: https://realpython.com/python-modules-packages/
 """
 
 # This does not enter the names of the functions defined in fibonacci_module directly in the
diff --git a/src/modules/test_packages.py b/src/modules/test_packages.py
index 6fec2ec1..74db9448 100644
--- a/src/modules/test_packages.py
+++ b/src/modules/test_packages.py
@@ -13,13 +13,24 @@
 valid modules that occur later on the module search path. In the simplest case, __init__.py can
 just be an empty file, but it can also execute initialization code for the package or set the
 __all__ variable, described later.
-"""
 
-# The __init__.py files are required to make Python treat the directories as containing packages;
-# this is done to prevent directories with a common name, such as string, from unintentionally
-# hiding valid modules that occur later on the module search path. In the simplest case,
-# __init__.py can just be an empty file, but it can also execute initialization code for the
-# package or set the __all__ variable, described later.
+When the interpreter executes the import statement, it searches for module in a list of
+directories assembled from the following sources:
+
+- The directory from which the input script was run or the current directory if the interpreter is
+being run interactively
+- The list of directories contained in the PYTHONPATH environment variable, if it is set. (The
+format for PYTHONPATH is OS-dependent but should mimic the PATH environment variable.)
+- An installation-dependent list of directories configured at the time Python is installed
+
+The resulting search path is accessible in the Python variable sys.path, which is obtained from a
+module named sys:
+
+>>> import sys
+>>> sys.path
+
+@see: https://realpython.com/python-modules-packages/
+"""
 
 # Users of the package can import individual modules from the package, for example.
 import sound_package.effects.echo

From 44b845e91c15d4a63a6348423658fba5945f1ea5 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Tue, 25 Jun 2019 06:31:25 +0200
Subject: [PATCH 06/19] Set theme jekyll-theme-slate

---
 _config.yml | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 _config.yml

diff --git a/_config.yml b/_config.yml
new file mode 100644
index 00000000..c7418817
--- /dev/null
+++ b/_config.yml
@@ -0,0 +1 @@
+theme: jekyll-theme-slate
\ No newline at end of file

From 95abf2a0d68b4014dfb159a8f7626a1a3257c156 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Tue, 25 Jun 2019 06:34:26 +0200
Subject: [PATCH 07/19] Set theme jekyll-theme-minimal

---
 _config.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/_config.yml b/_config.yml
index c7418817..2f7efbea 100644
--- a/_config.yml
+++ b/_config.yml
@@ -1 +1 @@
-theme: jekyll-theme-slate
\ No newline at end of file
+theme: jekyll-theme-minimal
\ No newline at end of file

From 1bfecc3ad7592d9688210f8233604b302e05a6a1 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Tue, 5 May 2020 18:00:23 +0200
Subject: [PATCH 08/19] Add a link to interactive machine learning experiments.

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index f36eb28e..b87e41da 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,8 @@ syntax of [standard Python statements and constructions](#table-of-contents). Al
 code is full of assertions you'll be able to see expected functions/statements output right away
 without launching them.
 
+> _You might also be interested in 🤖 [Interactive Machine Learning Experiments](https://github.com/trekhleb/machine-learning-experiments)_
+
 ## How to Use This Repository
 
 Each Python script in this repository has the following structure:

From 5be75505d60cbd2f26ddb42b205dcc95297be054 Mon Sep 17 00:00:00 2001
From: "Vilmacio M. Silva" <vilmaciomoura@gmail.com>
Date: Fri, 29 May 2020 16:02:28 -0300
Subject: [PATCH 09/19] [PT-BR] Portuguese Translation v1.0 (#14)

* main README.md updated

* Adds README.pt-BR.md

Co-authored-by: vilmacio22 <vilmacio22@users.noreply.github.com>
---
 README.md       |   2 +
 README.pt-BR.md | 211 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 213 insertions(+)
 create mode 100644 README.pt-BR.md

diff --git a/README.md b/README.md
index b87e41da..92ef11cc 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,8 @@
 > This is a collection of Python scripts that are split by [topics](#table-of-contents) and contain 
 code examples with explanations, different use cases and links to further readings.
 
+_Read this in_ [_Português_](README.pt-BR.md)
+
 It is a **playground** because you may change or add the code to see how it works 
 and [test it out](#testing-the-code) using assertions. It also allows you 
 to [lint the code](#linting-the-code) you've wrote and check if it fits to Python code style guide.
diff --git a/README.pt-BR.md b/README.pt-BR.md
new file mode 100644
index 00000000..f37bc1ba
--- /dev/null
+++ b/README.pt-BR.md
@@ -0,0 +1,211 @@
+# Playground e Cheatsheet Para Aprender Python
+
+[![Build Status](https://travis-ci.org/trekhleb/learn-python.svg?branch=master)](https://travis-ci.org/trekhleb/learn-python)
+
+> Essa é uma coleção de scripts Python dividida em [tópicos](#índice) que contém 
+exemplos de código com explicações, diferentes usos e links para outras leituras.
+
+_Ler em_ [_English_](README.md)
+
+É um **playground** porque você pode fazer alterações no código para ver como ele se comporta,
+além de [testá-lo](#testando-o-código) usando asserções. Também é possível 
+[revisar o código](#revisando-o-código) que você escreveu automaticamente e verificar se ele se encaixa
+no guia de estilo de código Python.
+Isso tudo pode tornar seu processo de aprendizagem mais interativo e ajudar a manter a qualidade
+do código bastante alta desde o início.
+
+É um **cheatsheet** porque você pode voltar a esses exemplos de código quando quiser recapitular a sintaxe das 
+[estruturas padrão do Python](#índice). O código está cheio de asserções, então você poderá ver o retorno das funções sem precisar executá-las.
+
+> _Você pode se interessar também por 🤖 [Interactive Machine Learning Experiments](https://github.com/trekhleb/machine-learning-experiments)_
+
+## Como Usar Esse Repositório
+
+Nesse repositório, cada script Python possui a seguinte estrutura:
+
+```python
+"""Lists  <--- Nome do tópico
+
+# @see: https://www.learnpython.org/en/Lists  <-- Link para outras leituras.
+
+A seguir, uma explicação mais detalhada do tópico atual (ex, informações gerais sobre listas (Lists)).
+"""
+
+
+def test_list_type():
+    """Explicação do subtópico.
+    
+    Cada arquivo contém funções de teste que ilustram subtópicos (ou seja, tipo de lista, métodos de lista).
+    """
+    
+    # Here is an example of how to build a list.  <-- Comentários em inglês explicam a ação.
+    squares = [1, 4, 9, 16, 25]
+    
+    # Lists can be indexed and sliced. 
+    # Indexing returns the item.
+    assert squares[0] == 1  # <-- As asserções ilustram o resultado.
+    # Slicing returns a new list.
+    assert squares[-3:] == [9, 16, 25]  # <-- As asserções ilustram o resultado.
+```
+
+Então você pode querer fazer o seguinte:
+
+- [Encontrar o tópico](#índice) que deseja aprender ou recapitular.
+- Ler os comentários e/ou a documentação vinculada em cada script (como no exemplo acima).
+- Analisar os exemplos e asserções para ver exemplos de uso e saída esperada das funções.
+- Alterar o código ou adicionar novas asserções para ver o que acontece.
+- [Executar testes](#testando-o-código) e [revisar o código](#revisando-o-código) para ver se ele
+funciona e para saber se está escrito corretamente. 
+
+## Índice
+
+1. **Começando**
+    - [O que é Python](src/getting_started/what_is_python.md)
+    - [Sintaxe Python](src/getting_started/python_syntax.md)
+    - [Variáveis](src/getting_started/test_variables.py)
+2. **Operators**
+    - [Operadores Aritméticos](src/operators/test_arithmetic.py) (`+`, `-`, `*`, `/`, `//`, `%`, `**`)
+    - [Operadores Bitwise](src/operators/test_bitwise.py) (`&`, `|`, `^`, `>>`, `<<`, `~`)
+    - [Operadores de Atribuição](src/operators/test_assigment.py) (`=`, `+=`, `-=`, `/=`, `//=` etc.)
+    - [Operadores de Comparação](src/operators/test_comparison.py) (`==`, `!=`, `>`, `<`, `>=`, `<=`)
+    - [Operadores Lógicos](src/operators/test_logical.py) (`and`, `or`, `not`)
+    - [Operadores de Indentidade](src/operators/test_identity.py) (`is`, `is not`)
+    - [Operadores de Associação](src/operators/test_membership.py) (`in`, `not in`)
+3. **Tipos de Dados**
+    - [Números](src/data_types/test_numbers.py) (incluindo boleanos)
+    - [Strings](src/data_types/test_strings.py) e seus métodos
+    - [Listas](src/data_types/test_lists.py) e seus métodos (incluindo lista de compreensões)
+    - [Tuplas](src/data_types/test_tuples.py)
+    - [Conjuntos](src/data_types/test_sets.py) e seus métodos
+    - [Dicionários](src/data_types/test_dictionaries.py)
+    - [Casting de Tipo](src/data_types/test_type_casting.py)
+4. **Controles de Fluxo**
+    - [A declaração `if`](src/control_flow/test_if.py)
+    - [A declaração `for`](src/control_flow/test_for.py) (e a função `range()`)
+    - [A declaração `while`](src/control_flow/test_while.py)
+    - [A declaração `try`](src/control_flow/test_try.py)
+    - [A declaração `break`](src/control_flow/test_break.py)
+    - [A declaração `continue`](src/control_flow/test_continue.py)
+5. **Funções**
+    - [Definição de Função](src/functions/test_function_definition.py) (declaração `def` e `return`)
+    - [Variáveis Dentro das Funções](src/functions/test_function_scopes.py) (declaração `global` e `nonlocal`)
+    - [Valores Padrão de Argumentos](src/functions/test_function_default_arguments.py)
+    - [Argumentos de palavras-chave](src/functions/test_function_keyword_arguments.py)
+    - [Listas de Argumento Arbitrárias](src/functions/test_function_arbitrary_arguments.py)
+    - [Desfazendo Lista de Argumentos](src/functions/test_function_unpacking_arguments.py) (declaração `*` e `**`)
+    - [Expressões Lambda](src/functions/test_lambda_expressions.py) (declaração `lambda`)
+    - [Documentação das Strings](src/functions/test_function_documentation_string.py)
+    - [Função de Anotações](src/functions/test_function_annotations.py)
+    - [Função de Decoradores](src/functions/test_function_decorators.py)
+6. **Classes**
+    - [Definição de Classe](src/classes/test_class_definition.py) (declaração `class`)
+    - [Classes dos Objetos](src/classes/test_class_objects.py)
+    - [Instância dos Objetos](src/classes/test_instance_objects.py)
+    - [Métodos de Objetos](src/classes/test_method_objects.py)
+    - [Variável de Classe e Instância](src/classes/test_class_and_instance_variables.py)
+    - [Herança](src/classes/test_inheritance.py)
+    - [Herança Múltipla](src/classes/test_multiple_inheritance.py)
+7. **Módulos**
+    - [Módulos](src/modules/test_modules.py) (declaração `import`)
+    - [Pacotes](src/modules/test_packages.py)
+8. **Erros e Exceções**
+    - [Tratando Exceções](src/exceptions/test_handle_exceptions.py) (declaração `try`)
+    - [Levantando Exceções](src/exceptions/test_raise_exceptions.py) (declaração `raise`) 
+9. **Arquivos**
+    - [Lendo e Escrevendo](src/files/test_file_reading.py) (declaração `with`)
+    - [Métodos de Objetos de Arquivos](src/files/test_file_methods.py)
+10. **Adicional**
+    - [A declaração `pass`](src/additions/test_pass.py)
+    - [Geradores](src/additions/test_generators.py) (declaração `yield`)
+11. **Algumas Bibliotecas Padrão**
+    - [Serialization](src/standard_libraries/test_json.py) (biblioteca `json`)
+    - [File Wildcards](src/standard_libraries/test_glob.py) (biblioteca `glob`)
+    - [String Pattern Matching](src/standard_libraries/test_re.py) (biblioteca `re`)
+    - [Mathematics](src/standard_libraries/test_math.py) (bibliotecas `math`, `random` e `statistics`)
+    - [Tempo e Datas](src/standard_libraries/test_datetime.py) (biblioteca `datetime`)
+    - [Compressão de dados](src/standard_libraries/test_zlib.py) (biblioteca `zlib`)
+
+## Pré-requisitos
+
+**Instalando o Python**
+
+Certifique-se de ter o [Python3 instalado](https://realpython.com/installing-python/) em sua máquina.
+
+Você pode usar a biblioteca padrão do Python [venv](https://docs.python.org/3/library/venv.html)
+para criar ambientes virtuais e ter o Python, pip e todos os outros pacotes a serem instalados
+ a partir do diretório local do projeto para evitar mexer com pacotes externos ou do sistema.
+
+Dependendo da sua instalação, você pode ter acesso ao interpretador Python3 executando `python` ou `python3`. O mesmo vale para o gerenciador de pacotes pip, você pode acessá-lo executando `pip` ou `pip3`.
+
+Você pode ver a versão do seu Python executando:
+
+```bash
+python --version
+```
+
+Observe que neste repositório sempre que você vê o `python`, será assumido que é o Python **3**.
+
+**Instalando dependências**
+
+Instale todas as dependências necessárias para o projeto executando:
+
+```bash
+pip install -r requirements.txt
+```
+
+## Testando o Código
+
+Testes são feitos usando o framework [pytest](https://docs.pytest.org/en/latest/).
+
+Você pode adicionar novos testes criando arquivos e funções com o prefixo `test_` 
+(ex. `test_topic.py` com a função `def test_sub_topic()` dentro).
+
+Para executar todos os testes, execute o seguinte comando na pasta raiz do projeto:
+
+```bash
+pytest
+```
+
+Para executar testes específicos, execute:
+
+```bash
+pytest ./path/to/the/test_file.py
+```
+
+## Revisando o Código
+
+A revisão é feita usando as bibliotecas [pylint](http://pylint.pycqa.org/) e [flake8](http://flake8.pycqa.org/en/latest/).
+
+### PyLint
+
+Para verificar se o código está escrito de acordo com o guia de estilo 
+do [PEP 8](https://www.python.org/dev/peps/pep-0008/), execute:
+
+```bash
+pylint ./src/
+```
+
+Caso o pylint detecte um erro (ex. `missing-docstring`), convém ler mais sobre erros específicos executando:
+
+```bash
+pylint --help-msg=missing-docstring
+```
+
+[Saber mais sobre PyLint](http://pylint.pycqa.org/)
+
+### Flake8
+
+Para verificar se o código está escrito de acordo com o guia de estilo 
+do [PEP 8](https://www.python.org/dev/peps/pep-0008/), execute:
+
+```bash
+flake8 ./src
+```
+
+Ou, se você quiser uma saída mais detalhada, execute:
+
+```bash
+flake8 ./src --statistics --show-source --count
+```
+
+[Saber mais sobre Flake8](http://flake8.pycqa.org/en/latest/)

From e6c8cfd4df09b7290a0fa5dc710bb0bd90522233 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Fri, 29 May 2020 21:04:50 +0200
Subject: [PATCH 10/19] Minor fixes.

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 92ef11cc..faf34882 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 > This is a collection of Python scripts that are split by [topics](#table-of-contents) and contain 
 code examples with explanations, different use cases and links to further readings.
 
-_Read this in_ [_Português_](README.pt-BR.md)
+_Read this in_ [_Português_](README.pt-BR.md).
 
 It is a **playground** because you may change or add the code to see how it works 
 and [test it out](#testing-the-code) using assertions. It also allows you 

From 427de77d0cacb75eab99757c373fa2a3feb173fc Mon Sep 17 00:00:00 2001
From: "Vilmacio M. Silva" <vilmaciomoura@gmail.com>
Date: Sat, 30 May 2020 05:51:54 -0300
Subject: [PATCH 11/19] [PT-BR] Portuguese Translation v2.0 (#16)

* main README.md updated

* Adds README.pt-BR.md

* [FIX] pt-BR Translate

Co-authored-by: vilmacio22 <vilmacio22@users.noreply.github.com>
---
 README.pt-BR.md | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/README.pt-BR.md b/README.pt-BR.md
index f37bc1ba..e6bd025f 100644
--- a/README.pt-BR.md
+++ b/README.pt-BR.md
@@ -5,7 +5,7 @@
 > Essa é uma coleção de scripts Python dividida em [tópicos](#índice) que contém 
 exemplos de código com explicações, diferentes usos e links para outras leituras.
 
-_Ler em_ [_English_](README.md)
+_Ler em_ [_English_](README.md).
 
 É um **playground** porque você pode fazer alterações no código para ver como ele se comporta,
 além de [testá-lo](#testando-o-código) usando asserções. Também é possível 
@@ -63,7 +63,7 @@ funciona e para saber se está escrito corretamente.
     - [O que é Python](src/getting_started/what_is_python.md)
     - [Sintaxe Python](src/getting_started/python_syntax.md)
     - [Variáveis](src/getting_started/test_variables.py)
-2. **Operators**
+2. **Operadores**
     - [Operadores Aritméticos](src/operators/test_arithmetic.py) (`+`, `-`, `*`, `/`, `//`, `%`, `**`)
     - [Operadores Bitwise](src/operators/test_bitwise.py) (`&`, `|`, `^`, `>>`, `<<`, `~`)
     - [Operadores de Atribuição](src/operators/test_assigment.py) (`=`, `+=`, `-=`, `/=`, `//=` etc.)
@@ -121,9 +121,9 @@ funciona e para saber se está escrito corretamente.
     - [Serialization](src/standard_libraries/test_json.py) (biblioteca `json`)
     - [File Wildcards](src/standard_libraries/test_glob.py) (biblioteca `glob`)
     - [String Pattern Matching](src/standard_libraries/test_re.py) (biblioteca `re`)
-    - [Mathematics](src/standard_libraries/test_math.py) (bibliotecas `math`, `random` e `statistics`)
+    - [Matemática](src/standard_libraries/test_math.py) (bibliotecas `math`, `random` e `statistics`)
     - [Tempo e Datas](src/standard_libraries/test_datetime.py) (biblioteca `datetime`)
-    - [Compressão de dados](src/standard_libraries/test_zlib.py) (biblioteca `zlib`)
+    - [Comprimindo Dados](src/standard_libraries/test_zlib.py) (biblioteca `zlib`)
 
 ## Pré-requisitos
 
@@ -209,3 +209,7 @@ flake8 ./src --statistics --show-source --count
 ```
 
 [Saber mais sobre Flake8](http://flake8.pycqa.org/en/latest/)
+
+---
+
+Traduzido por [vilmacio22](https://github.com/vilmacio22).
\ No newline at end of file

From 3c0a5c184858868f3c04e2650a98d7401ad825b0 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Mon, 6 Jul 2020 22:41:30 +0200
Subject: [PATCH 12/19] Create FUNDING.yml

---
 .github/FUNDING.yml | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 .github/FUNDING.yml

diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 00000000..25b1a776
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: trekhleb # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

From 5b9ea5a827288f2dd5daaea25cb71ba7cb621872 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Wed, 8 Jul 2020 07:55:22 +0200
Subject: [PATCH 13/19] Update FUNDING.yml

---
 .github/FUNDING.yml | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
index 25b1a776..deda41e7 100644
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -1,12 +1,3 @@
-# These are supported funding model platforms
-
-github: trekhleb # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
-patreon: # Replace with a single Patreon username
-open_collective: # Replace with a single Open Collective username
-ko_fi: # Replace with a single Ko-fi username
-tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-liberapay: # Replace with a single Liberapay username
-issuehunt: # Replace with a single IssueHunt username
-otechie: # Replace with a single Otechie username
-custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
+# @see: https://docs.github.com/en/github/administering-a-repository/displaying-a-sponsor-button-in-your-repository
+github: trekhleb
+patreon: trekhleb

From cf58262afcaa1e6f006b9ad1b6ad9db28d34e6d7 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Wed, 8 Jul 2020 18:09:05 +0200
Subject: [PATCH 14/19] Minor fixes.

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index faf34882..2a39aa0b 100644
--- a/README.md
+++ b/README.md
@@ -214,3 +214,7 @@ flake8 ./src --statistics --show-source --count
 ```
 
 [More about Flake8](http://flake8.pycqa.org/en/latest/)
+
+## Supporting the project
+
+You may support this project via ❤️️ [GitHub](https://github.com/sponsors/trekhleb) or ❤️️ [Patreon](https://www.patreon.com/trekhleb).

From 25e6b2a548b8c581bb8c5b7162b9b4e984a48c8b Mon Sep 17 00:00:00 2001
From: Sven Eschlbeck <66701689+sveneschlbeck@users.noreply.github.com>
Date: Thu, 28 Oct 2021 16:54:49 +0200
Subject: [PATCH 15/19] Adding a test function for user input (#40)

* Adding a test function for user input in terminal

* Update README.md

* Update README.md

* Update README.md
---
 README.md                    |  2 ++
 src/user_input/test_input.py | 17 +++++++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 src/user_input/test_input.py

diff --git a/README.md b/README.md
index 2a39aa0b..818cf4e2 100644
--- a/README.md
+++ b/README.md
@@ -125,6 +125,8 @@ written correctly.
     - [Mathematics](src/standard_libraries/test_math.py) (`math`, `random`, `statistics` libraries)
     - [Dates and Times](src/standard_libraries/test_datetime.py) (`datetime` library)
     - [Data Compression](src/standard_libraries/test_zlib.py) (`zlib` library)
+12. **User input**
+    - [Terminal input](src/user_input/test_input.py) from users to interact with the program
 
 ## Prerequisites
 
diff --git a/src/user_input/test_input.py b/src/user_input/test_input.py
new file mode 100644
index 00000000..a567d96f
--- /dev/null
+++ b/src/user_input/test_input.py
@@ -0,0 +1,17 @@
+"""User input
+
+# @see https://docs.python.org/3/library/functions.html#input
+
+User input prompts are very helpful when it comes to interactive programming. Not only in games but also in standard file operations, you may want your user to interact with the program.
+Therefore, the user needs the opportunity to be able to put in information.
+"""
+
+
+def user_input():
+	"""Input prompt"""
+
+	"""Printing statement to signal the user that we are waiting for input"""
+	user_input = input("Please type in your name.\n")
+
+	"""Printing a message based on the input"""
+	print(f"Welcome, {user_input}!")

From 19353f72aacd68ad38dab3f837c3cb507f24f7e3 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Thu, 28 Oct 2021 17:37:16 +0200
Subject: [PATCH 16/19] Add Input.

---
 README.md                    | 4 ++--
 src/user_input/test_input.py | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 818cf4e2..e1fb02cd 100644
--- a/README.md
+++ b/README.md
@@ -111,7 +111,7 @@ written correctly.
     - [Packages](src/modules/test_packages.py)
 8. **Errors and Exceptions**
     - [Handling Exceptions](src/exceptions/test_handle_exceptions.py) (`try` statement)
-    - [Raising Exceptions](src/exceptions/test_raise_exceptions.py) (`raise` statement) 
+    - [Raising Exceptions](src/exceptions/test_raise_exceptions.py) (`raise` statement)
 9. **Files**
     - [Reading and Writing](src/files/test_file_reading.py) (`with` statement)
     - [Methods of File Objects](src/files/test_file_methods.py)
@@ -126,7 +126,7 @@ written correctly.
     - [Dates and Times](src/standard_libraries/test_datetime.py) (`datetime` library)
     - [Data Compression](src/standard_libraries/test_zlib.py) (`zlib` library)
 12. **User input**
-    - [Terminal input](src/user_input/test_input.py) from users to interact with the program
+    - [Terminal input](src/user_input/test_input.py) (`input` statement)
 
 ## Prerequisites
 
diff --git a/src/user_input/test_input.py b/src/user_input/test_input.py
index a567d96f..0acbbf76 100644
--- a/src/user_input/test_input.py
+++ b/src/user_input/test_input.py
@@ -1,6 +1,6 @@
 """User input
 
-# @see https://docs.python.org/3/library/functions.html#input
+@see https://docs.python.org/3/library/functions.html#input
 
 User input prompts are very helpful when it comes to interactive programming. Not only in games but also in standard file operations, you may want your user to interact with the program.
 Therefore, the user needs the opportunity to be able to put in information.
@@ -10,8 +10,8 @@
 def user_input():
 	"""Input prompt"""
 
-	"""Printing statement to signal the user that we are waiting for input"""
-	user_input = input("Please type in your name.\n")
+	# Printing statement to signal the user that we are waiting for input.
+	user_input = input("Please type in your name\n")
 
-	"""Printing a message based on the input"""
+	# Printing a message based on the input.
 	print(f"Welcome, {user_input}!")

From 6a84155fcf0b7d090cf2e2553a0e78b1d8746900 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20De=20Freitas?=
 <37962411+JoseDeFreitas@users.noreply.github.com>
Date: Thu, 28 Oct 2021 12:05:01 -0400
Subject: [PATCH 17/19] Add Spanish translation (#31)

* Translate text into Spanish

* Add Spanish translation reference

* Add Spanish translation reference

* Fix links

Co-authored-by: Oleksii Trekhleb <trehleb@gmail.com>
---
 README.es.md    | 219 ++++++++++++++++++++++++++++++++++++++++++++++++
 README.md       |   2 +-
 README.pt-BR.md |   4 +-
 3 files changed, 222 insertions(+), 3 deletions(-)
 create mode 100644 README.es.md

diff --git a/README.es.md b/README.es.md
new file mode 100644
index 00000000..60a38138
--- /dev/null
+++ b/README.es.md
@@ -0,0 +1,219 @@
+# Playground y Cheatsheet para aprender Python
+
+[![Build Status](https://travis-ci.org/trekhleb/learn-python.svg?branch=master)](https://travis-ci.org/trekhleb/learn-python)
+
+> Esta es una colección de scripts de Python divididos en [categorías](#contenido) que contienen
+ejemplos de código con sus explicaciones, diferentes usos y links a recursos adicionales.
+
+_Lee esto en_ [_Inglés_](README.md), [_Portugués_](README.pt-BR.md).
+
+Es un **playground** ya que puedes cambiar o añadir cosas al código para ver
+cómo funciona y [probarlo](#probando-el-código) usando aserciones. También puedes
+[revisar el código](#revisando-el-código) que has escrito y averiguar si está acorde con
+la guía de estilos de Python. Todo esto, en conjunto, puede hacer que tu proceso de aprendizaje
+sea más interactivo y puede ayudarte a mantener la calidad del código muy alta desde el principio.
+
+Es un **cheatsheet** porque puedes regresar y revisar los ejemplos de código para
+fortalecer tus conocimientos sobre las [sentencias y contrucciones estándar de Python](#contenido).
+Además, ya que el código tiene muchas aserciones, podrás ver el resultado de las funciones/sentencias en el mismo
+código sin la necesidad de ejecutarlos.
+
+> _También puede interesarte 🤖 [Interactive Machine Learning Experiments](https://github.com/trekhleb/machine-learning-experiments)_
+
+## Cómo usar este repositorio
+
+Cada script de Python en este repositorio sigue la estructura:
+
+```python
+"""Lists  <--- Nombre del tema
+
+# @see: https://www.learnpython.org/en/Lists  <-- Link a recurso adicional
+
+Aquí puede haber una explicación detallada del tema en concreto (ej: información general sobre listas).
+"""
+
+
+def test_list_type():
+    """Explicación del sub-tema.
+    
+    Cada archivo contiene funciones de prueba que muestran sub-temas (ej: tipos de listas, métodos en listas).
+    """
+    
+    # Este es un ejemplo de cómo construir una lista. <-- Estos comentarios explican el procedimiento
+    squares = [1, 4, 9, 16, 25]
+    
+    # Las listas pueden ser indexadas y cortadas. 
+    # Al indexar devuelve el item.
+    assert squares[0] == 1  # <-- Estas aserciones muestran el resultado.
+    # Al cortar devuelve una nueva lista.
+    assert squares[-3:] == [9, 16, 25]  # <-- Estas aserciones muestran el resultado.
+```
+
+Normalmente, querrás hacer lo siguiente:
+
+- [Encontrar el tema](#contenido) que quieres aprender o revisar.
+- Leer los comentarios y/o la documentación que está escrita en cada docstring del script (toma como ejemplo el script de arriba).
+- Ver los ejemplos de código y las aserciones para conocer diferentes maneras de usar el código y entender el resultado previsto.
+- Cambiar el código o añadir nuevas aserciones para ver cómo funcionan las cosas.
+- [Probar](#probando-el-código) y [revisar](#revisando-el-código) el código para ver si funciona y si está escrito
+correctamente.
+
+## Contenido
+
+1. **Empezando**
+    - [¿Qué es Python?](src/getting_started/what_is_python.md)
+    - [Sintaxis de Python](src/getting_started/python_syntax.md)
+    - [Variables](src/getting_started/test_variables.py)
+2. **Operadores**
+    - [Operadores aritméticos](src/operators/test_arithmetic.py) (`+`, `-`, `*`, `/`, `//`, `%`, `**`)
+    - [Operadores Bitwise](src/operators/test_bitwise.py) (`&`, `|`, `^`, `>>`, `<<`, `~`)
+    - [Operadores de atribución](src/operators/test_assigment.py) (`=`, `+=`, `-=`, `/=`, `//=` etc.)
+    - [Operadores de comparación](src/operators/test_comparison.py) (`==`, `!=`, `>`, `<`, `>=`, `<=`)
+    - [Operadores lógicos](src/operators/test_logical.py) (`and`, `or`, `not`)
+    - [Operadores de identidad](src/operators/test_identity.py) (`is`, `is not`)
+    - [Operadores de asociación](src/operators/test_membership.py) (`in`, `not in`)
+3. **Tipos de datos**
+    - [Números](src/data_types/test_numbers.py) (incluyendo booleans)
+    - [Strings](src/data_types/test_strings.py) y sus métodos
+    - [Listas](src/data_types/test_lists.py) y sus métodos (incluyendo comprensión de listas)
+    - [Tuples](src/data_types/test_tuples.py)
+    - [Sets](src/data_types/test_sets.py) y sus métodos
+    - [Diccionarios](src/data_types/test_dictionaries.py)
+    - [Tipo de casting](src/data_types/test_type_casting.py)
+4. **Control de flujo**
+    - [La sentencia `if`](src/control_flow/test_if.py)
+    - [La sentencia `for`](src/control_flow/test_for.py) (y la función `range()`)
+    - [La sentencia `while`](src/control_flow/test_while.py)
+    - [La sentencia `try`](src/control_flow/test_try.py)
+    - [La sentencia `break`](src/control_flow/test_break.py)
+    - [La sentencia `continue`](src/control_flow/test_continue.py)
+5. **Funciones**
+    - [Definición de función](src/functions/test_function_definition.py) (sentencias `def` y `return`)
+    - [Ámbito de variables dentro de funciones](src/functions/test_function_scopes.py) (sentencias `global` y `nonlocal`)
+    - [Valores de argumento predeterminados](src/functions/test_function_default_arguments.py)
+    - [Argumentos de palabras clave](src/functions/test_function_keyword_arguments.py)
+    - [Listas de argumento arbitrario](src/functions/test_function_arbitrary_arguments.py)
+    - [Listas de argumentos en funciones](src/functions/test_function_unpacking_arguments.py) (sentencias `*` y `**`)
+    - [Expresiones Lambda](src/functions/test_lambda_expressions.py) (sentencia `lambda`)
+    - [Strings de documentación](src/functions/test_function_documentation_string.py)
+    - [Anotaciones en funciones](src/functions/test_function_annotations.py)
+    - [Decoradores de funciones](src/functions/test_function_decorators.py)
+6. **Clases**
+    - [Definición de clase](src/classes/test_class_definition.py) (sentencia `class`)
+    - [Objetos de clase](src/classes/test_class_objects.py)
+    - [Objetos de instancia](src/classes/test_instance_objects.py)
+    - [Métodos de objetos](src/classes/test_method_objects.py)
+    - [Variables de clase y de instancia](src/classes/test_class_and_instance_variables.py)
+    - [Herencia](src/classes/test_inheritance.py)
+    - [Herencia múltiple](src/classes/test_multiple_inheritance.py)
+7. **Módulos**
+    - [Módulos](src/modules/test_modules.py) (sentencia `import`)
+    - [Paquetes](src/modules/test_packages.py)
+8. **Errores y excepciones**
+    - [Controlando excepciones](src/exceptions/test_handle_exceptions.py) (sentencia `try`)
+    - [Generando excepciones](src/exceptions/test_raise_exceptions.py) (sentencia `raise`) 
+9. **Archivos**
+    - [Leyendo y escribiendo](src/files/test_file_reading.py) (sentencia `with`)
+    - [Métodos de objetos de archivo](src/files/test_file_methods.py)
+10. **Adicionales**
+    - [La sentencia `pass`](src/additions/test_pass.py)
+    - [Generadores](src/additions/test_generators.py) (sentencia `yield`)
+11. **Pequeño tour de las librerías estándar**
+    - [Serialización](src/standard_libraries/test_json.py) (librería `json`)
+    - [Parámetros en archivos](src/standard_libraries/test_glob.py) (librería `glob`)
+    - [Expresiones regulares](src/standard_libraries/test_re.py) (librearía `re`)
+    - [Matemática](src/standard_libraries/test_math.py) (librerías `math`, `random` y `statistics`)
+    - [Fechas y horas](src/standard_libraries/test_datetime.py) (librería `datetime`)
+    - [Compresión de datos](src/standard_libraries/test_zlib.py) (librearía `zlib`)
+
+## Pre-requisitos
+
+**Instalando Python**
+
+Asegúrate de que tienes [Python3 instalado](https://realpython.com/installing-python/) en tu sistema.
+
+Podrías utilizar la librería estándar [venv](https://docs.python.org/es/3/library/venv.html) para crear
+entornos virtuales y tener Python, pip y todos los paquetes instalados en el directorio de tu
+proyecto local para evitar cometer errores con paquetes del sistema y sus versiones.
+
+Dependiendo de la instalación, tendrás acceso a Python3 ejecutando `python` o `python3`. Lo mismo
+aplica para el administrador de paquetes pip - puedes tener acceso a él ejecutando `pip` o `pip3`.
+
+Puedes ver tu versión actual de Python ejecutando:
+
+```bash
+python --version
+```
+
+Ten en cuenta que cuando leas `python` en este repositorio, se asume que es Python **3**.
+
+**Instalando dependencias**
+
+Instala todas las depencias requeridas para el proyecto ejecutando:
+
+```bash
+pip install -r requirements.txt
+```
+
+## Probando el código
+
+Las pruebas son hechas usando el framework [pytest](https://docs.pytest.org/en/latest/).
+
+Puedes añadir más pruebas por ti mismo añadiendo archivos y funciones con el prefijo `test_`
+(ej: `test_topic.py` con la función `def test_sub_topic()` adentro).
+
+Para ejecutar todas las pruebas, por favor escribe el siguiente comando desde el directorio
+raíz del proyecto:
+
+```bash
+pytest
+```
+
+Para ejecutar diferentes pruebas escribe:
+
+```bash
+pytest ./path/to/the/test_file.py
+```
+
+## Revisando el código
+
+La revisión del código está hecha usando las librerías [pylint](http://pylint.pycqa.org/) y [flake8](http://flake8.pycqa.org/en/latest/).
+
+### PyLint
+
+Para revisar si el código sigue la guía de estilos
+[PEP 8](https://www.python.org/dev/peps/pep-0008/), por favor ejecuta:
+
+```bash
+pylint ./src/
+```
+
+En caso de que linter detecte un error (ej: `missing-docstring`), te recomiendo leer más sobre
+el error concreto ejecutando:
+
+```bash
+pylint --help-msg=missing-docstring
+```
+
+[Más sobre PyLint](http://pylint.pycqa.org/)
+
+### Flake8
+
+Para revisar si el código sigue la guía de estilos
+[PEP 8](https://www.python.org/dev/peps/pep-0008/), por favor ejecuta:
+
+```bash
+flake8 ./src
+```
+
+O, si quieres ver un output más detallado, ejecuta:
+
+```bash
+flake8 ./src --statistics --show-source --count
+```
+
+[Más sobre Flake8](http://flake8.pycqa.org/en/latest/)
+
+## Apoya al proyecto
+
+Puedes apoyar al proyecto a través de ❤️️ [GitHub](https://github.com/sponsors/trekhleb) o ❤️️ [Patreon](https://www.patreon.com/trekhleb).
diff --git a/README.md b/README.md
index e1fb02cd..6637baf7 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 > This is a collection of Python scripts that are split by [topics](#table-of-contents) and contain 
 code examples with explanations, different use cases and links to further readings.
 
-_Read this in_ [_Português_](README.pt-BR.md).
+_Read this in_ [_Português_](README.pt-BR.md), [_Español_](README.es.md).
 
 It is a **playground** because you may change or add the code to see how it works 
 and [test it out](#testing-the-code) using assertions. It also allows you 
diff --git a/README.pt-BR.md b/README.pt-BR.md
index e6bd025f..1d86472e 100644
--- a/README.pt-BR.md
+++ b/README.pt-BR.md
@@ -5,7 +5,7 @@
 > Essa é uma coleção de scripts Python dividida em [tópicos](#índice) que contém 
 exemplos de código com explicações, diferentes usos e links para outras leituras.
 
-_Ler em_ [_English_](README.md).
+_Ler em_ [_English_](README.md), [_Español_](README.es.md).
 
 É um **playground** porque você pode fazer alterações no código para ver como ele se comporta,
 além de [testá-lo](#testando-o-código) usando asserções. Também é possível 
@@ -212,4 +212,4 @@ flake8 ./src --statistics --show-source --count
 
 ---
 
-Traduzido por [vilmacio22](https://github.com/vilmacio22).
\ No newline at end of file
+Traduzido por [vilmacio22](https://github.com/vilmacio22).

From 57637b9a6cf4e5fa2355be7311ebe5f4e57e14ed Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Thu, 28 Oct 2021 18:06:34 +0200
Subject: [PATCH 18/19] README fixes.

---
 README.es.md => README.es-ES.md | 2 +-
 README.md                       | 2 +-
 README.pt-BR.md                 | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
 rename README.es.md => README.es-ES.md (99%)

diff --git a/README.es.md b/README.es-ES.md
similarity index 99%
rename from README.es.md
rename to README.es-ES.md
index 60a38138..7865c822 100644
--- a/README.es.md
+++ b/README.es-ES.md
@@ -5,7 +5,7 @@
 > Esta es una colección de scripts de Python divididos en [categorías](#contenido) que contienen
 ejemplos de código con sus explicaciones, diferentes usos y links a recursos adicionales.
 
-_Lee esto en_ [_Inglés_](README.md), [_Portugués_](README.pt-BR.md).
+_Lee esto en:_ [_Inglés_](README.md), [_Portugués_](README.pt-BR.md).
 
 Es un **playground** ya que puedes cambiar o añadir cosas al código para ver
 cómo funciona y [probarlo](#probando-el-código) usando aserciones. También puedes
diff --git a/README.md b/README.md
index 6637baf7..9e7398d6 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 > This is a collection of Python scripts that are split by [topics](#table-of-contents) and contain 
 code examples with explanations, different use cases and links to further readings.
 
-_Read this in_ [_Português_](README.pt-BR.md), [_Español_](README.es.md).
+_Read this in:_ [_Português_](README.pt-BR.md), [_Español_](README.es-ES.md).
 
 It is a **playground** because you may change or add the code to see how it works 
 and [test it out](#testing-the-code) using assertions. It also allows you 
diff --git a/README.pt-BR.md b/README.pt-BR.md
index 1d86472e..6487a088 100644
--- a/README.pt-BR.md
+++ b/README.pt-BR.md
@@ -5,7 +5,7 @@
 > Essa é uma coleção de scripts Python dividida em [tópicos](#índice) que contém 
 exemplos de código com explicações, diferentes usos e links para outras leituras.
 
-_Ler em_ [_English_](README.md), [_Español_](README.es.md).
+_Ler em:_ [_English_](README.md), [_Español_](README.es-ES.md).
 
 É um **playground** porque você pode fazer alterações no código para ver como ele se comporta,
 além de [testá-lo](#testando-o-código) usando asserções. Também é possível 

From b957147715485c42df794beb05e451ab5c049f28 Mon Sep 17 00:00:00 2001
From: Clark Chiu <49561051+ClarkChiu@users.noreply.github.com>
Date: Fri, 29 Oct 2021 00:10:46 +0800
Subject: [PATCH 19/19] Translate the README.md into Traditional Chinese and
 add the link into original README.md (#39)

Co-authored-by: Oleksii Trekhleb <trehleb@gmail.com>
---
 README.md       |   2 +
 README.pt-BR.md |   2 +
 README.zh-TW.md | 205 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 209 insertions(+)
 create mode 100644 README.zh-TW.md

diff --git a/README.md b/README.md
index 9e7398d6..97592bcb 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,8 @@ code examples with explanations, different use cases and links to further readin
 
 _Read this in:_ [_Português_](README.pt-BR.md), [_Español_](README.es-ES.md).
 
+_Read this in_ [_Traditional Chinese_](README.zh-TW.md).
+
 It is a **playground** because you may change or add the code to see how it works 
 and [test it out](#testing-the-code) using assertions. It also allows you 
 to [lint the code](#linting-the-code) you've wrote and check if it fits to Python code style guide.
diff --git a/README.pt-BR.md b/README.pt-BR.md
index 6487a088..21d8349e 100644
--- a/README.pt-BR.md
+++ b/README.pt-BR.md
@@ -7,6 +7,8 @@ exemplos de código com explicações, diferentes usos e links para outras leitu
 
 _Ler em:_ [_English_](README.md), [_Español_](README.es-ES.md).
 
+_Ler em_ [_Traditional Chinese_](README.zh-TW.md).
+
 É um **playground** porque você pode fazer alterações no código para ver como ele se comporta,
 além de [testá-lo](#testando-o-código) usando asserções. Também é possível 
 [revisar o código](#revisando-o-código) que você escreveu automaticamente e verificar se ele se encaixa
diff --git a/README.zh-TW.md b/README.zh-TW.md
new file mode 100644
index 00000000..59a867d1
--- /dev/null
+++ b/README.zh-TW.md
@@ -0,0 +1,205 @@
+# 學習 Python 的練習場（Playground）和速查表（Cheatsheet）
+
+[![Build Status](https://travis-ci.org/trekhleb/learn-python.svg?branch=master)](https://travis-ci.org/trekhleb/learn-python)
+
+> 此專案依據 [目錄](#目錄) 分類收集了 Python 腳本，包含了程式碼範例及解釋、不同的使用情境以及衍伸閱讀連結。
+
+_閱讀英文原始版本_ [_English_](README.md)
+
+_閱讀葡萄牙文翻譯版本_ [_Português_](README.pt-BR.md)
+
+此專案名稱之所以叫做 **練習場（Playground）**，是因為您可以修改或是新增程式碼至範例中去觀察程式執行流程並使用斷言關鍵字（assert）來 [測試程式](#測試程式)。同時，此專案也使用了業界常用的工具來 [檢查程式碼](#檢查程式碼)，確保您所撰寫的程式碼符合官方建議的 Python 程式碼風格規範。
+
+總而言之，此專案會使您的學習過程更具互動性，並幫助您從一開始學習的時候就使用高品質的程式碼。
+
+此專案名稱之所以也包含了 **速查表（Cheatsheet）** 是因為您可以隨時透過此專案中的 [標準 Python 陳述式以及結構](#目錄) 回顧程式碼語法，也因為在此專案中的每個程式碼範例都使用了斷言來說明及教學，故您可以不用執行程式就看到函式/陳述式的預期輸出結果。
+
+> 若對機器學習（Machine Learning）有興趣，可以參考專案原作者的另一個學習專案：🤖 [Interactive Machine Learning Experiments](https://github.com/trekhleb/machine-learning-experiments)
+
+## 如何使用此專案儲存庫
+
+在此專案儲存庫中的每一個 Python 腳本皆為以下結構：
+
+```python
+"""串列（Lists） <--- 此為主題名稱
+
+# @詳見: https://www.learnpython.org/en/Lists <-- 此為延伸閱讀連結
+
+此處可能會有針對此主題更多的詳細說明（例如：關於串列的基本使用方法）
+"""
+
+def test_list_type():
+    """此處為子主題解釋
+
+    每個檔案皆包含說明該子主題的測試函式（例如：串列型態、串列方法）
+    """
+
+    # 建立串列之範例 <-- 此行是解釋下一行程式碼動作之註解
+    squares = [1, 4, 9, 16, 25]
+
+    # 串列可以被索引（indexed）及切片（sliced）
+    # 索引會回傳該索引位置之內容值
+    assert squares[0] == 1 # <-- 利用斷言來呈現結果
+    # 切片會回傳一個新的串列
+    assert squares[-3:] == [9, 16, 25] # <-- 利用斷言來呈現結果
+```
+
+故您可以做以下動作：
+
+- 找一個您想要學習或是回顧的 [主題](#目錄)。
+- 閱讀註解及/或包含於腳本文件字串（docstring）中的延伸閱讀資料（如上述之程式碼範例）。
+- 查看程式碼範例並利用斷言來展示使用範例及預期輸出。
+- 修改程式碼或新增新的斷言來了解程式運作流程。
+- [執行測試](#測試程式) 及 [檢查程式碼](#檢查程式碼) 來確認程式是否被正確撰寫及是否可以被正確執行。
+
+## 目錄
+
+1. **入門**
+    - [Python 是什麼](src/getting_started/what_is_python.md)
+    - [Python 語法](src/getting_started/python_syntax.md)
+    - [變數](src/getting_started/test_variables.py)
+2. **運算子**
+    - [數學運算子](src/operators/test_arithmetic.py) (`+`, `-`, `*`, `/`, `//`, `%`, `**`)
+    - [位元運算子](src/operators/test_bitwise.py) (`&`, `|`, `^`, `>>`, `<<`, `~`)
+    - [指派運算子](src/operators/test_assigment.py) (`=`, `+=`, `-=`, `/=`, `//=` 等 ...)
+    - [比較運算子](src/operators/test_comparison.py) (`==`, `!=`, `>`, `<`, `>=`, `<=`)
+    - [邏輯運算子](src/operators/test_logical.py) (`and`, `or`, `not`)
+    - [恆等運算子](src/operators/test_identity.py) (`is`, `is not`)
+    - [成員存取運算子](src/operators/test_membership.py) (`in`, `not in`)
+3. **資料類型**
+    - [數字](src/data_types/test_numbers.py)（包含布林值）
+    - [字串](src/data_types/test_strings.py) 及相關方法
+    - [串列](src/data_types/test_lists.py) 及相關方法（包含列表構建）
+    - [元組](src/data_types/test_tuples.py)
+    - [集合](src/data_types/test_sets.py) 及相關方法
+    - [字典](src/data_types/test_dictionaries.py)
+    - [類型轉換](src/data_types/test_type_casting.py)
+4. **流程控制**
+    - [`if` 陳述式](src/control_flow/test_if.py)
+    - [`for` 陳述式](src/control_flow/test_for.py) (以及 `range()` 函式)
+    - [`while` 陳述式](src/control_flow/test_while.py)
+    - [`try` 陳述式](src/control_flow/test_try.py)
+    - [`break` 陳述式](src/control_flow/test_break.py)
+    - [`continue` 陳述式](src/control_flow/test_continue.py)
+5. **函式**
+    - [函式定義](src/functions/test_function_definition.py)（`def` 以及 `return` 陳述式）
+    - [函式內變數作用範圍](src/functions/test_function_scopes.py)（`global` 以及 `nonlocal` 陳述式）
+    - [預設引數](src/functions/test_function_default_arguments.py)
+    - [關鍵字引數](src/functions/test_function_keyword_arguments.py)
+    - [任意引數串列](src/functions/test_function_arbitrary_arguments.py)
+    - [拆解引數串列](src/functions/test_function_unpacking_arguments.py)（`*` 以及 `**` 陳述式）
+    - [Lambda 表達式](src/functions/test_lambda_expressions.py) (`lambda` 陳述式)
+    - [文件字串](src/functions/test_function_documentation_string.py)
+    - [函式註釋](src/functions/test_function_annotations.py)
+    - [函式裝飾器](src/functions/test_function_decorators.py)
+6. **類別**
+    - [類別定義](src/classes/test_class_definition.py) (`class` 陳述式)
+    - [類別物件](src/classes/test_class_objects.py)
+    - [物件實體](src/classes/test_instance_objects.py)
+    - [物件方法](src/classes/test_method_objects.py)
+    - [類別及實體變數](src/classes/test_class_and_instance_variables.py)
+    - [繼承](src/classes/test_inheritance.py)
+    - [多重繼承](src/classes/test_multiple_inheritance.py)
+7. **模組**
+    - [模組](src/modules/test_modules.py) (`import` 陳述式)
+    - [套件](src/modules/test_packages.py)
+8. **錯誤和例外**
+    - [例外處理](src/exceptions/test_handle_exceptions.py) (`try` 陳述式)
+    - [例外引發](src/exceptions/test_raise_exceptions.py) (`raise` 陳述式)
+9. **檔案**
+    - [讀取和寫入](src/files/test_file_reading.py) (`with` 陳述式)
+    - [檔案物件方法](src/files/test_file_methods.py)
+10. **附加內容**
+    - [`pass` 陳述式](src/additions/test_pass.py)
+    - [生成器](src/additions/test_generators.py) (`yield` 陳述式)
+11. **標準函式庫簡介**
+    - [串列化](src/standard_libraries/test_json.py) (`json` 函式庫)
+    - [檔案萬用字元](src/standard_libraries/test_glob.py) (`glob` 函式庫)
+    - [字串規則比對](src/standard_libraries/test_re.py) (`re` 函式庫)
+    - [數學運算](src/standard_libraries/test_math.py) (`math`, `random`, `statistics` 函式庫)
+    - [日期和時間](src/standard_libraries/test_datetime.py) (`datetime` 函式庫)
+    - [資料壓縮](src/standard_libraries/test_zlib.py) (`zlib` 函式庫)
+
+## 使用此專案必備條件
+
+**安裝 Python**
+
+確認您已安裝 [Python3](https://realpython.com/installing-python/) 在您的電腦上。
+
+您可能會想要使用標準 Python 函式庫所提供的 [虛擬環境](https://docs.python.org/3/library/venv.html) 功能在專案目錄中建立虛擬環境來佈署 Python 程式、pip 程式以及安裝所有需要的套件，藉此來避免作業系統中 Python 版本及相依性的混亂。
+
+根據您的安裝方法，您可能可以通過以下方式執行 Python 3 直譯器：執行 `python` 或 `python3` 命令。pip 套件管理器執行方式也是如此：執行 `pip` 或 `pip3`。
+
+您可以使用以下命令來確認 Python 版本：
+
+```bash
+python --version
+```
+
+此專案儲存庫中的所有程式碼皆是基於 Python **3**。
+
+**安裝相依性套件**
+
+透過以下命令安裝此專案需要的相依性套件：
+
+```bash
+pip install -r requirements.txt
+```
+
+## 測試程式
+
+此專案使用 [pytest](https://docs.pytest.org/en/latest/) 測試框架來執行程式碼測試。
+
+您可以新增以 `test_` 為開頭的檔案/函式來新增測試。（例如：`test_topic.py` 檔案內有 `def test_sub_topic()` 測試函式）
+
+請從專案根目錄下使用以下命令來執行所有測試：
+
+```bash
+pytest
+```
+
+您也可以使用以下命令執行特定測試：
+
+```bash
+pytest ./path/to/the/test_file.py
+```
+
+## 檢查程式碼
+
+此專案使用 [pylint](http://pylint.pycqa.org/) 以及 [flake8](http://flake8.pycqa.org/en/latest/) 函式庫來執行程式碼檢查。
+
+### PyLint
+
+檢查撰寫之程式碼是否符合 [PEP 8](https://www.python.org/dev/peps/pep-0008/) 風格規範，請執行以下命令：
+
+```bash
+pylint ./src/
+```
+
+若此檢查工具偵測到錯誤（例如：`missing-docstring`），您可以使用以下命令查看特定錯誤之詳細說明：
+
+```bash
+pylint --help-msg=missing-docstring
+```
+
+[更多關於 PyLint](http://pylint.pycqa.org/)
+
+### Flake8
+
+檢查撰寫之程式碼是否符合 [PEP 8](https://www.python.org/dev/peps/pep-0008/) 風格規範，請執行以下命令：
+
+```bash
+flake8 . /src
+```
+
+若您希望得到更多詳細的輸出，您可以加上以下參數再執行此工具：
+
+```bash
+flake8 . /src --statistics --show-source --count
+```
+
+[更多關於 Flake8](http://flake8.pycqa.org/en/latest/)
+
+## 支持此專案
+
+您可以透過 ❤️️ [GitHub](https://github.com/sponsors/trekhleb) 或 ❤️️ [Patreon](https://www.patreon.com/trekhleb) 支持原作者專案
\ No newline at end of file
