Coding Standards

PEP 8 — Style Guide for Python Code - This document gives coding conventions for the Python code comprising the standard library in the main Python distribution. Please see the companion informational PEP describing style guidelines for the C code in the C implementation of Python

Virtual Python Environment

A Virtual Environment is a tool to keep the dependencies required by different projects in separate places, by creating virtual Python environments for them. It solves the “Project X depends on version 1.x but, Project Y needs 4.x” dilemma, and keeps your global site-packages directory clean and manageable.1

A Virtual Environment is a tool to keep the dependencies required by different projects in separate places, by creating virtual Python environments for them. It solves the “Project X depends on version 1.x but, Project Y needs 4.x” dilemma, and keeps your global site-packages directory clean and manageable.2

References

• Virtual Environments - The Hitchhiker's Guide to Python
• A Primer on virtualenv

Installation

$ sudo pip install virtualenv

Create an Environment

$ which python3
or
$ which python3.6

where {env-name} is the name for your project, etc. and the -p path is too the version of Python you want to use in this environment, for example Python 3.x

$ virtualenv ./venv -p /usr/bin/python3.6

Activate the VirtualEnv

$ source ./venv/bin/activate

VirtualEnv Dependencies

pip freeze

• pip freeze - pip 18.1 documentation

When you are using a virtualenv, you can specify a requirements.txt file to install all the dependencies.3

(venv)$ pip freeze > requirements.txt

(venv)$ pip install -r requirements.txt

PyCharm - virtualenv

PyCharm - virtualenv makes it possible create virtual environment using the virtualenv tool. So doing, PyCharm tightly integrates with virtualenv, and enables configuring virtual environments right in the IDE.4

gitignore

Gitignore - Specifies intentionally untracked files to ignore5

gitignore Command Line Generator

gi pycharm,python >> .gitignore

Git

Git is a distributed revision control system with an emphasis on speed, data integrity, and support for distributed, non-linear workflows. Git was initially designed and developed by Linus Torvalds for Linux kernel development in 2005, and has since become the most widely adopted version control system for software development.6

Python Gitignore

Gitignore - Specifies intentionally untracked files to ignore7

wget -O .gitignore https://raw.githubusercontent.com/github/gitignore/master/Python.gitignore

shebang

#!/usr/bin/env python3

IDLE

IDLE is Python’s Integrated Development and Learning Environment.8

• https://docs.python.org/3/library/idle.html

sudo apt-get install idle3

sudo yum install python-tools

Sublime

Sublime Text is a sophisticated text editor for code, markup and prose. You'll love the slick user interface, extraordinary features and amazing performance.9

• An Overview of Sublime Text 2 with Python - One of the key tools of each developer is a good integrated developer environment (IDE). Python is a beautiful language with great support from a budding community of developers, who continue to create amazing libraries and extensions.
• Setting up Sublime Text for Python development - I recently started using Sublime Text 2 more and more as my main editor for Python development. This article explains my setup and some tweaks that make Python programmers happy.

gitignore

wget -O .gitignore https://raw.githubusercontent.com/github/gitignore/master/Global/SublimeText.gitignore

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