Use different Python version with virtualenv
To use a specific Python version in a virtualenv, specify the python executable during creation:
Here, python3.x is your target Python version and envname is your virtual environment's name.
For Python 3.8:
Activate it:
Your virtualenv now runs Python 3.8.
Check available python versions
Before diving into a virtual environment, make sure you've got the right Python version installed. You can do this by running one of these commands:
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On Linux/Mac:
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On Windows:
These commands spit out paths to the Python interpreters. If you don't see the version you want, you'll need to install it first. Missing Python versions are like missing socks - you know they're there somewhere, you just can't find them!
Building Python from source
Sometimes, like an overenthusiastic pizza maker, you need more control over your ingredients. You can build Python from source to get exactly what you want.
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Download and extract the Python source code:
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In the source directory, set the installation path:
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Compile and install your custom Python:
Now you've got Python exactly the way you like it! Enjoy the smell of freshly baked Python goodness.
Managing environments like a boss
Give pyenv a try for a more delightful experience managing multiple Python versions. It provides easy commands to install and switch Python versions. Combined with virtualenv via the pyenv-virtualenv plugin, it's like a Swiss Army knife for Python environments.
Always remember pyvenv is the old cool. From Python 3.6 onwards, it's recommended to use python -m venv.
Organize your tools
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Maintain clear separation between different environments:
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Activation for Windows users:
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Keep your tools sharp and updated
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Mirror your production environment for predictable deployment outcomes:
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