PyEnv Basics Tutorial with Cheatsheet | Manage Multiple Python Versions | by OsChannel.com

Published: 12 July 2021
on channel: OsChannel

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Link to the Cheatsheet containing all the commands used in this tutorial: https://gist.github.com/oschannel/7f6...

How to install and get started with PyEnv on Windows/Mac/Linux system:
This youtube video shows, ways to install Pyenv and then install/uninstall different versions of Python on the same windows/mac/Linux machine. Once that is done you can use some basic to advanced PyEnv commands from this tutorial to manage python versions at the global, projects or shell level.

The Tutorial Covers Below Topics:
00:00 - Introduction to PyEnv
00:34 - PyEnv Installation and Setup
01:34 - Installing Different Python Versions
03:27 - Set Python Version for all Projects
03:59 - Set Python Version at Project Level
05:14 - Set Python Version at Shell Level
06:14 - Unset a Python Version set by PyEnv
06:38 - PyEnv Precedence
06:56 - Cheatsheet and Outro

Apart from the above topics it also covers an error that I faced on my macOS Big Sur while installing any Python version lower than 3.8(including 3.8)

Error text:
./Modules/posixmodule.c:8431:15: error: implicit declaration of function 'sendfile' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
ret = sendfile(in, out, offset, &sbytes, &sf, flags);

1 error generated.
make: *** [Modules/posixmodule.o] Error 1
make: *** Waiting for unfinished jobs....
1 warning generated.

FIX for above pyenv sendfile error:
https://www.youtube.com/embed/WVISFQp...

I thank all the contributors for the awesome PyEnv Tool ..!!
For more help on PyEnv refer specific projects on below link: https://github.com/pyenv

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