Cheat Sheet - Python

Created: 2021-05-22 | 1 min

My Cheat Sheet for: Python.

Gathering quick references I used to search over and over again. Good to have them handy and supposed to (slowly) grow.

Create virtual environment with name venv

python3 -m venv venv

Activate virtual environment venv

source venv/bin/activate

Exit virtual environment

deactivate

Save packages to requirements.txt

pip freeze > requirements.txt

Install packages from requirements.txt

pip install -r requirements.txt

Clean ALL packages. Credits: https://stackoverflow.com/questions/11248073/what-is-the-easiest-way-to-remove-all-packages-installed-by-pip

pip freeze | xargs pip uninstall -y

pipdeptree: Useful python command to see packages in dependency tree format

# Command:
$ pipdeptree

# Output:
commonmark==0.9.1
Jinja2==2.11.3
  - MarkupSafe [required: >=0.23, installed: 1.1.1]
pipdeptree==2.0.0
  - pip [required: >=6.0.0, installed: 21.0.1]
python-frontmatter==0.5.0
  - PyYAML [required: Any, installed: 5.4]
  - six [required: Any, installed: 1.15.0]
setuptools==54.2.0

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