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tool_pip.rst

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tool - pip (Package Installer for Python)

General

  • To show list of packages available: pip list
  • To check list of packages available within python runtime: help('modules')
  • To check the version of a package within python: first import the package import pandas then check version pandas.__version__
  • To upgrade a package: pip install packagename -U
  • To force install a specific version of a package: pip install "pandas=0.19.3" --force-reinstall

Packaging

# save a text file of all required packages and their versions
pip freeze > requirements.txt

# to install these packages on a server or another computer
pip install -r requirements.txt

TroubleShooting - Nothing happens when i type pip on terminal

  1. Double check that you have your environment path setup correctly. It should be pointing to your "Scripts" folder, see :doc:10min_python_starters_kit
  2. If simply pip doesnt work on your terminal, then typing out the command through python is a good backup. python -m pip