basics.md

Python

• The Python Standard Library: https://docs.python.org/3.5/library/
• Style Guide: https://www.python.org/dev/peps/pep-0008/
• Zen of Python: https://www.python.org/dev/peps/pep-0020/

using in REPL (Read-Eval-Print Loop)

only call python in a shell and you get a python shell python3

print("hello, world!") #=> hello, world! import this #=> zen of python

virtual environment

 # install
 python3 -m venv venv
 # activate
 source venv/bin/activate
 # deactivate
 deactivate

pip - install packages

  pip3 install gunicorn
  # or special version
  pip install gunicorn==20.1.0

create requirements.txt from installed packages

pip freeze > requirements.txt

strings

interpolation with f-strings

  first_name = "Tom"
  f"{first_name} is my first name."    # Pythonic