Learn Python - The Hard Way

Overview

Set of simple programs written during learning basics of Python language based on Learn Python - The Hard Way course. All tasks can be found in exercises directory. In the same directory, we can found another README.md file including list of all tasks. Moreover, this README.md file includes important and essential information concerning programming in Python. You can also read a short article about this project on my blog.

Requirements
Installing Python
Executing Python scripts from terminal
Pip
Installing Pip on Windows
Installing Pip on Linux
Installing Pip on macOS
Using Pip
Unit Testing
Virtualenv
Pipenv
Pyenv
Scripts on Linux
Style Guide for Python Code
Static code analysis
Development Environments
Python web frameworks
Useful Python libraries
Tools written in Python
Collections of tools written in Python
Resources
Videos
Books
License

Requirements

Windows, Linux or Mac OS X
Python 2.7
Pip (Python Package Manager)

Installing Python

on Linux: Most of the Linux distributions should have installed Python by default
on Windows: Download Python at: https://www.python.org/downloads/windows/ and run installer
on Mac OS X: Download Python at: https://www.python.org/downloads/mac-osx/

Executing Python scripts from terminal

on Linux: Most of the Linux distributions should have enabled Python by default, so simply open terminal and type python to see if everything works.
on Windows: add /PythonXX (e.g. C:/Python27) into Path environmental variable. Location of the Python directory depends on your configuration. Next, re-run terminal window and type python
in order to check installed version of the Python, type: python --version
in order to exit python console type exit()

Pip

Pip is a Python Package Manager.

Installing Pip on Windows

Download: https://bootstrap.pypa.io/get-pip.py script
Execute: python get-pip.py
pip.exe and easy_install.exe files now should be located at: /PythonXX/Scripts (e.g. C:/Python27/Scripts)
Add /PythonXX/Scripts (e.g. C:/Python27/Scripts) directory into Path environmental variable.
Re-run terminal window
Type pip, to check if package manager works
You can type pip --version, in order to check version of the pip

Installing Pip on Linux

Open terminal
Type sudo apt-get install python-pip

Installing Pip on macOS

Open terminal
Type brew install python3

This command will install python and pip.

Using Pip

In order to install desired package just type pip install desired_package (e.g. pip install Flask)
If you are working on Linux, type sudo pip install desired_package (e.g. sudo pip install Flask)
Index of available packages can be found at: https://pypi.python.org/pypi/
List of installed packages can be displayed with pip freeze command.

Unit Testing

UT in Python can be done with nose. Install it via pip with the following command: sudo pip install nose
UT can be also created with unittest package provided with Python.

Virtualenv

virtualenv is a tool to create isolated Python environments.

More information:

Pipenv

pipenv is Python Development Workflow for Humans.

It automatically creates and manages a virtualenv for your projects, as well as adds/removes packages from your Pipfile as you install/uninstall packages.

More information:

https://github.com/pypa/pipenv

Pyenv

pyenv is a simple Python version management.

Scripts on Linux

If we want to create a Python script for Linux, we should set the following header:

#!/usr/bin/python -u

# your Python script code goes here...

After that when our script was saved in script.py file, we can execute our script as follows:

./script.py

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