是否可以使用pip一次性升级所有Python包?
注意:官方问题跟踪器上对此有一个功能请求。
是否可以使用pip一次性升级所有Python包?
注意:官方问题跟踪器上对此有一个功能请求。
当前回答
pip install --upgrade `pip list --format=freeze | cut -d '=' -f 1`
pip-list--format=freeze包括pip和setuptools。pip冻结不会。
其他回答
拉玛纳的回答对我来说是最好的,但我不得不补充几点:
import pip
for dist in pip.get_installed_distributions():
if 'site-packages' in dist.location:
try:
pip.call_subprocess(['pip', 'install', '-U', dist.key])
except Exception, exc:
print exc
站点包检查排除了我的开发包,因为它们不在系统站点包目录中。try-except只是跳过已从PyPI中删除的包。
对于endolith:我也希望有一个简单的pip.install(dist.key,upgrade=True),但它看起来不像是要让命令行以外的任何东西使用pip(文档没有提到内部API,pip开发人员也没有使用docstring)。
python -c 'import pip; [pip.main(["install", "--upgrade", d.project_name]) for d in pip.get_installed_distributions()]'
一行!
以下Windows cmd代码段执行以下操作:
将pip升级到最新版本。升级所有过时的软件包。对于正在升级的每个包,检查requirements.txt中的任何版本说明符。
@echo off
Setlocal EnableDelayedExpansion
rem https://stackoverflow.com/questions/2720014/
echo Upgrading pip...
python -m pip install --upgrade pip
echo.
echo Upgrading packages...
set upgrade_count=0
pip list --outdated > pip-upgrade-outdated.txt
for /F "skip=2 tokens=1,3 delims= " %%i in (pip-upgrade-outdated.txt) do (
echo ^>%%i
set package=%%i
set latest=%%j
set requirements=!package!
rem for each outdated package check for any version requirements:
set dotest=1
for /F %%r in (.\python\requirements.txt) do (
if !dotest!==1 (
call :substr "%%r" !package! _substr
rem check if a given line refers to a package we are about to upgrade:
if "%%r" NEQ !_substr! (
rem check if the line contains more than just a package name:
if "%%r" NEQ "!package!" (
rem set requirements to the contents of the line:
echo requirements: %%r, latest: !latest!
set requirements=%%r
)
rem stop testing after the first instance found,
rem prevents from mistakenly matching "py" with "pylint", "numpy" etc.
rem requirements.txt must be structured with shorter names going first
set dotest=0
)
)
)
rem pip install !requirements!
pip install --upgrade !requirements!
set /a "upgrade_count+=1"
echo.
)
if !upgrade_count!==0 (
echo All packages are up to date.
) else (
type pip-upgrade-outdated.txt
)
if "%1" neq "-silent" (
echo.
set /p temp="> Press Enter to exit..."
)
exit /b
:substr
rem string substition done in a separate subroutine -
rem allows expand both variables in the substring syntax.
rem replaces str_search with an empty string.
rem returns the result in the 3rd parameter, passed by reference from the caller.
set str_source=%1
set str_search=%2
set str_result=!str_source:%str_search%=!
set "%~3=!str_result!"
rem echo !str_source!, !str_search!, !str_result!
exit /b
以下一行可能会有所帮助:
(点数>20.00)
pip list--格式冻结--过时|sed的/=.*//g'| xargs-n1 pip install-U
旧版本:pip list--格式冻结--过时|sed的/(.*//g'| xargs-n1 pip install-U
如果发生错误,xargs-n1将继续运行。
如果您需要对省略的内容和引发错误的内容进行更多的“细粒度”控制,则不应添加-n1标志并明确定义要忽略的错误,方法是为每个单独的错误“管道化”以下行:
|sed的/^<错误的第一个字符>.*//'
下面是一个工作示例:
pip list --format freeze --outdated | sed 's/=.*//g' | sed 's/^<First characters of the first error>.*//' | sed 's/^<First characters of the second error>.*//' | xargs pip install -U
如果您安装了pip<22.3,则使用纯Bash/Z外壳一个衬垫实现:
for p in $(pip list -o --format freeze); do pip install -U ${p%%=*}; done
或者,以一种格式良好的方式:
for p in $(pip list -o --format freeze)
do
pip install -U ${p%%=*}
done
在这之后,您将得到pip>=22.3,其中-o和--format冻结是互斥的,您不能再使用这一行。