import os
import pip
from subprocess import call, check_call

pip_check_list = ['pip', 'pip3']
pip_list = []
FNULL = open(os.devnull, 'w')


for s_pip in pip_check_list:
    try:
        check_call([s_pip, '-h'], stdout=FNULL)
        pip_list.append(s_pip)
    except FileNotFoundError:
        pass


for dist in pip.get_installed_distributions():
    for pip in pip_list:
        call("{0} install --upgrade ".format(pip) + dist.project_name, shell=True)

我接受了拉玛纳的回答，并使其变得友好。

使用AWK更新包：

pip install -U $(pip freeze | awk -F'[=]' '{print $1}')

Windows PowerShell更新

foreach($p in $(pip freeze)){ pip install -U $p.Split("=")[0]}

pip list --outdated --format=freeze | grep -v '^\-e' | cut -d = -f 1  | xargs -n1 pip install -U

import os
import pip
from subprocess import call, check_call

pip_check_list = ['pip', 'pip3']
pip_list = []
FNULL = open(os.devnull, 'w')


for s_pip in pip_check_list:
    try:
        check_call([s_pip, '-h'], stdout=FNULL)
        pip_list.append(s_pip)
    except FileNotFoundError:
        pass


for dist in pip.get_installed_distributions():
    for pip in pip_list:
        call("{0} install --upgrade ".format(pip) + dist.project_name, shell=True)

我接受了拉玛纳的回答，并使其变得友好。

使用virtualenv时，如果您只想升级添加到virtualenv的软件包，您可能需要执行以下操作：

pip install `pip freeze -l | cut --fields=1 -d = -` --upgrade

Windows PowerShell解决方案

pip freeze | %{$_.split('==')[0]} | %{pip install --upgrade $_}