Pyenv unable to detect installed python versions on MacOS Catalina

Question

I have MacOS Catalina and I went ahead and did a brew install for the latest version of python 3.8.5. Then I discovered pyenv and installed that as well. I followed the steps on https://github.com/pyenv/pyenv#basic-github-checkout from number 3 but still can't see any python versions in pyenv .

I have both.zprofile and.zshrc files and am wondering if that's causing issues. Here's my echo $PATH -

/Users/pq0252/.pyenv/shims/shims:/Users/pq0252/.pyenv/shims/shims:/Users/pq0252/.pyenv/shims:/Library/Frameworks/Python.framework/Versions/3.8/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin 

Here's the pyenv version output:

pyenv versions
* system (set by /Users/pq0252/.pyenv/shims/version) 

Here's the .zprofile contents -

 #Setting PATH for Python 3.8.   
 #The original version is saved in .zprofile.pysave.   
PATH="/Library/Frameworks/Python.framework/Versions/3.8/bin:${PATH}"   
export PATH 

Here's the .zshrc contents (this seems to be repeating the if condition, even though I only added it once which I am thinking has something to do with the step 3 on pyenv github where we are appending to it?).

export PYENV_ROOT="$HOME/.pyenv/shims"
export PATH="$PYENV_ROOT:$PATH"
export PIPENV_PYTHON="$PYENV_ROOT/python"
echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n  eval "$(pyenv init -)"\n$
if command -v pyenv 1>/dev/null 2>&1; then
  eval "$(pyenv init -)"
fi
if command -v pyenv 1>/dev/null 2>&1; then
  eval "$(pyenv init -)"
fi

Should I remove entries in .zshrc and instead add everything to .zprofile or is there something else I'm missing? python3 --version does show 3.8.5.

Answer 1

Here's what I see when I run pyenv versions

➜  ~ pyenv versions
* system (set by /Users/gwanghyeongim/.pyenv/version)
  3.7.6
  3.7.7

And this is what I have in my .zshrc file.

# pyenv config
export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"
if command -v pyenv 1>/dev/null 2>&1; then
  eval "$(pyenv init -)"
fi

Your PYENV_ROOT and PATH in .zshrc looks odd. According to the installation guide, they should looke something like above. Make them like above.

It seems instead of running echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n eval "$(pyenv init -)"\nfi' >> ~/.zshrc echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n eval "$(pyenv init -)"\nfi' >> ~/.zshrc in terminal, you put it in .zshrc directly. Remove the code block starting echo -e and run the code in the terminal instead. Then your .zshrc will look like something above.

Now try running pyenv install version_to_install , where version_to_install is python you want to install with pyenv. For exmaple

pyenv install 3.7.7

Then it will install the specific version. After it's installed, run pyenv versions again and see if you see the installed python version too in the list.