Hello,
I am facing an issue with python on mac and there is not much information that I can find to fix it.
When I installed the latest cli for Azure (brew upgrade azure-cli) it installed python 3.8
And then the az cli failed and running the python 3.8 failed too with the following error.
 
/usr/local/Cellar/python@3.8/3.8.1/Frameworks/Python.framework/Versions/3.8/bin/python3.8
Fatal Python error: config_get_locale_encoding: failed to get the locale encoding: nl_langinfo(CODESET) failed
Python runtime state: preinitialized
 
I have tried to reinstall python and the azure cli without success.

Any help would be much appreciated.

Try `locale` command.  What is shown?

Can you try to dump your environment variables? Try maybe the "env" command.

At least, I would need: LC_ALL, LC_CTYPE and LANG.

An additional question: what version of macOS are you using?

thanks averyone to help me
here are the values you are expecting

locale
LANG="en_US"
LC_COLLATE="en_US"
LC_CTYPE="en_US"
LC_MESSAGES="en_US"
LC_MONETARY="en_US"
LC_NUMERIC="en_US"
LC_TIME="en_US"
LC_ALL=

doing env I get this (no LC_ALL )
LC_TERMINAL_VERSION=3.3.7
ITERM_PROFILE=zsh
XPC_FLAGS=0x0
LANG=en_US
SHELL=/usr/local/bin/zsh
TERM_PROGRAM_VERSION=3.3.7
TERM_PROGRAM=iTerm.app
LC_TERMINAL=iTerm2
LC_CTYPE=en_US

And for the last question I am using Catalina 10.15.2

> doing env I get this (no LC_ALL )
[snip]
> LC_CTYPE=en_US

This is wrong setting.  Find where this environment variable is set and remove it.

The other locale related settings are off as well, the default system locale ends with ".UTF-8".

Thanks a lot for you help, my issue is solved.
My ~/.zshrc was having a LANG env var set to
     
LANG=en_US

I just commented out this line and everything works fine.
I don't know why this was set like that.

Thanks again for your time you can close this ticket.