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Ask pyenv whether pip exists if installed (#1848)

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Pyenv will install shims for commands that exist in any interpreter, even if it is not the current one. This means that a command may technically exist, but when executed will tell the user to try a different interpreter. The original check for pip in the Python module can fail for this reason, in particular on Ubuntu 20.04.

This change checks with pyenv whether pip really exists in the current interpreter to work around this problem and fixes a bug in pip command detection.
This commit is contained in:
Joost Cassee 2020-06-29 19:25:15 +02:00 committed by GitHub
parent 20a78c04e5
commit 2d3763380c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 6 deletions
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20
modules/python/init.zsh
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@ -147,18 +147,25 @@ if (( $+VIRTUALENVWRAPPER_VIRTUALENV || $+commands[virtualenv] )) && \
fi
# Load PIP completion.
if (( $#commands[(i)pip(|[23])] )); then
cache_file="${XDG_CACHE_HOME:-$HOME/.cache}/prezto/pip-cache.zsh"
# Detect and use one available from among 'pip', 'pip2', 'pip3' variants
# Detect and use one available from among 'pip', 'pip2', 'pip3' variants
if [[ -n "$PYENV_ROOT" ]]; then
for pip in pip{,2,3}; do
pip_command="$(pyenv which "$pip" 2>/dev/null)"
[[ -n "$pip_command" ]] && break
done
unset pip
else
pip_command="$commands[(i)pip(|[23])]"
fi
if [[ -n "$pip_command" ]]; then
cache_file="${XDG_CACHE_HOME:-$HOME/.cache}/prezto/pip-cache.zsh"
if [[ "$pip_command" -nt "$cache_file" \
|| "${ZDOTDIR:-$HOME}/.zpreztorc" -nt "$cache_file" \
|| ! -s "$cache_file" ]]; then
mkdir -p "$cache_file:h"
# pip is slow; cache its output. And also support 'pip2', 'pip3' variants
$pip_command completion --zsh \
"$pip_command" completion --zsh \
| sed -e "s/\(compctl -K [-_[:alnum:]]* pip\).*/\1{,2,3}{,.{0..9}}/" \
>! "$cache_file" \
2> /dev/null
@ -166,8 +173,9 @@ if (( $#commands[(i)pip(|[23])] )); then
source "$cache_file"
unset cache_file pip_command
unset cache_file
fi
unset pip_command
# Load conda into the shell session, if requested
zstyle -T ':prezto:module:python' conda-init