pyenv: python :command not found

问题

I want to use Python3 with pyenv.

$ pyenv root
/Users/asari/.pyenv
$ pyenv versions
  system
  2.7.15
  3.6.2
  3.6.3
  3.6.4
* 3.6.6 (set by /Users/asari/workspace/hoge/.python-version)
$ python -V
pyenv: python: command not found

The `python' command exists in these Python versions:
  2.7.15

but, python command not found.

I read it in .pyenv/shims/python, thought that there was not python in .pyenv/versions/3.6.6/bin/, but I did not know why python was missing.

$ pwd
/Users/asari/.pyenv/versions/3.6.6/bin
$ ls -la
total 12096
drwxr-xr-x  19 asari  staff      608  8 16 00:51 .
drwxr-xr-x   6 asari  staff      192  8 16 00:51 ..
lrwxr-xr-x   1 asari  staff        8  8 16 00:51 2to3 -> 2to3-3.6
-rwxr-xr-x   1 asari  staff      135  8 16 00:51 2to3-3.6
-rwxr-xr-x   1 asari  staff      276  8 16 00:51 easy_install-3.6
lrwxr-xr-x   1 asari  staff        7  8 16 00:51 idle3 -> idle3.6
-rwxr-xr-x   1 asari  staff      133  8 16 00:51 idle3.6
-rwxr-xr-x   1 asari  staff      258  8 16 00:51 pip3
-rwxr-xr-x   1 asari  staff      258  8 16 00:51 pip3.6
lrwxr-xr-x   1 asari  staff        8  8 16 00:51 pydoc3 -> pydoc3.6
-rwxr-xr-x   1 asari  staff      118  8 16 00:51 pydoc3.6
lrwxr-xr-x   1 asari  staff        9  8 16 00:51 python3 -> python3.6
lrwxr-xr-x   1 asari  staff       16  8 16 00:51 python3-config -> python3.6-config
-rwxr-xr-x   2 asari  staff  3078944  8 16 00:51 python3.6
lrwxr-xr-x   1 asari  staff       17  8 16 00:51 python3.6-config -> python3.6m-config
-rwxr-xr-x   2 asari  staff  3078944  8 16 00:51 python3.6m
-rwxr-xr-x   1 asari  staff     2076  8 16 00:51 python3.6m-config
lrwxr-xr-x   1 asari  staff       10  8 16 00:51 pyvenv -> pyvenv-3.6
-rwxr-xr-x   1 asari  staff      475  8 16 00:51 pyvenv-3.6

$PATH

$ echo $PATH | perl -p -e 's/:/\n/g'
/Users/asari/.pyenv/shims
/Users/asari/.pyenv/bin
/Users/asari/.rbenv/shims
/Users/asari/.cargo/bin
/usr/local/bin
/usr/bin
/bin
/usr/sbin
/sbin

install log

$ pyenv install 3.6.6
python-build: use openssl from homebrew
python-build: use readline from homebrew
Downloading Python-3.6.6.tar.xz...
-> https://www.python.org/ftp/python/3.6.3/Python-3.6.3.tar.xz
Installing Python-3.6.6...
python-build: use readline from homebrew
Installed Python-3.6.6 to /Users/asari/.pyenv/versions/3.6.6

$ pyenv --version
pyenv 1.2.7
$ brew list | grep py
python
python@2

pyenv clone and installed from github(I have not installed pyenv on brew)

.zshrc

# python
export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init -)"

Thank you for your time.

UPDATE

I created python 's symlink, and python worked.

Why is there no python s symlink? (I was wondering if install failed, I am running install and uninstall many times

create symlink

$ pwd
/Users/asari/.pyenv/versions/3.6.6/bin
$ ln -s python3 python

Work,

$ pwd
/Users/asari/workspace/hoge
$ python -V
Python 3.6.6

回答1:

I solved it.

I used the following grep option in .zshrc

export GREP_OPTIONS = '- color = auto'

It seems that even if ANSI escape code was included in the search result of grep used in pyenv, it was not used properly as a character string.

I think that you all know, but GREP_OPTIONS is deprecated.

回答2:

when I use python with pyenv, show me:

/Users/zhezhezhu/.pyenv/shims/python: line 21: /usr/local/Cellar/pyenv/1.2.18/libexec/pyenv: No such file or directory

I solved it by : pyenv rehash

来源：https://stackoverflow.com/questions/51863225/pyenv-python-command-not-found