Check when the version does not switch with pyenv

Work memo

I will summarize how to isolate the problem when installing pyenv Please refer to the official materials as much as possible to install. Official: https://github.com/pyenv/pyenv#installation

Check which python you are using

Judge whether it is "python set by pyenv" or "python installed by default in the OS"

#mac default python
$ which python
/usr/bin/python

#pyenv python
$ which python
/Users/xxxx/.pyenv/shims/python

Check the shell config file

Check which shell

In shell, I need to read the environment variables of pyenv Check because the location to load the environment variable of pyenv differs depending on the shell.

$ echo $SHELL
/bin/zsh

The description method is described in the official 2. Define environment variable PYENV_ROOT ... Since the description method is different for each shell, the explanation is omitted. https://github.com/pyenv/pyenv#basic-github-checkout

I set an environment variable but it doesn't work

It may work normally by refreshing the settings of shell and pyenv.

//Refresh shell settings
$ exec "$SHELL"
//Refresh pyenv settings
$ pyenv rehash

Official is the best

Finally, in this qiita, we summarized how to isolate the problem. I think that the installation method is "it's okay if you look at the official b", but I think that you may stumble at the first setting, so I want to be an engineer who can isolate the problem at that time. Official: https://github.com/pyenv/pyenv#installation

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