os
- python which OS are we running on (os, platform)
- Current directory (getcwd, pwd, chdir)
- OS path
- os.path.join
- Directory listing
- Directory listing using glob
- Traverse directory tree - list directories recursively
- OS dir (mkdir, makedirs, remove, rmdir)
- expanduser - handle tilde ~ the home directory of the user
- Get process ID
- External command with system
- Accessing the system environment variables from Python
- Set environment variables on the fly
- Reading the .env environment file in Python
- Set env and run command