Cheat Sheet

Definitions / examples
GitHub - gto76/python-cheatsheet: Comprehensive Python Cheatsheet
GitHub
GitHub - geekcomputers/Python: My Python Examples
GitHub
GitHub - vinta/awesome-python: A curated list of awesome Python frameworks, libraries, software and resources
GitHub
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Install multiple versions
Install all packages.
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apt update
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apt install python2.7 python2.7-dev
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apt install python3.5 python3.5-dev
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apt install python3.6 python3.6-dev
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Update alternatives for python (2).
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sudo update-alternatives --install /usr/bin/python python /usr/bin/python2.7 1
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sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.5 2
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sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.6 3
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sudo update-alternatives --config python
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Select python2.7
Update alternatives for python3.
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sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1
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sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2
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sudo update-alternatives --config python3
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Select python3.6
Fix pip.
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sudo pip install pip --upgrade
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sudo python3 -m pip uninstall pip
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sudo apt install python3-pip --reinstall
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wget https://bootstrap.pypa.io/get-pip.py
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sudo python3.6 get-pip.py
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Import module from parent dir
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script_path = os.path.dirname(os.path.realpath(__file__))
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root_path = f"{script_path}/../../../"
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sys.path.insert(0, root_path)
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from mymodule import myfile
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Contents

Definitions / examples

Install multiple versions

Import module from parent dir