Python包管理工具pip的升级指南

python -m pip install --upgrade pip

python -m pip install pip==23.1.2

python -m pip install --user --upgrade pip

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python get-pip.py --force-reinstall

# 对于Python 3.x特定版本
python3.9 -m pip install --upgrade pip
python3.10 -m pip install --upgrade pip

# 首先在有网络的环境下载
python -m pip download pip --dest /tmp/pip-pkg

# 然后在离线环境安装
python -m pip install --no-index --find-links=/tmp/pip-pkg pip

# 查看可用版本
python -m pip install pip==21.0

# 降级到特定版本
python -m pip install pip==21.0 --force-reinstall

python -m venv myenv
source myenv/bin/activate  # Linux/macOS
myenv\Scripts\activate     # Windows

python -m pip --version

import subprocess
import sys
from pip._internal.utils.misc import get_installed_distributions

def safe_upgrade_pip():
    # 备份当前安装的包
    installed_packages = {pkg.key: pkg.version
                         for pkg in get_installed_distributions()}

    try:
        # 升级pip
        subprocess.check_call([sys.executable, "-m", "pip",
                             "install", "--upgrade", "pip"])

        # 验证升级
        subprocess.check_call([sys.executable, "-m", "pip",
                             "check"])
        print("Pip升级成功且环境验证通过")

    except subprocess.CalledProcessError as e:
        print(f"升级失败: {e}")
        # 恢复原有pip版本
        if 'pip' in installed_packages:
            subprocess.call([sys.executable, "-m", "pip",
                           "install", f"pip=={installed_packages['pip']}"])
        print("已恢复原有pip版本")

if __name__ == "__main__":
    safe_upgrade_pip()

import subprocess
import platform

def upgrade_all_pips():
    python_versions = ['python3.8', 'python3.9', 'python3.10']

    for py in python_versions:
        try:
            print(f"正在升级 {py} 的pip...")
            subprocess.run([py, "-m", "pip", "install", "--upgrade", "pip"],
                          check=True, capture_output=True, text=True)
            print(f"{py} pip升级成功")
        except subprocess.CalledProcessError as e:
            print(f"{py} pip升级失败: {e.stderr}")

if __name__ == "__main__":
    upgrade_all_pips()

# .gitlab-ci.yml 示例
before_script:
  - python -m pip install --upgrade pip
  - pip install -r requirements.txt

# 在项目根目录创建 setup.py
from setuptools import setup

setup(
    name="project",
    install_requires=[
        "pip>=23.0",
        # 其他依赖
    ],
)

# 在有网络的机器上
pip download pip --dest /tmp/pip-packages

# 将/tmp/pip-packages复制到目标机器
pip install --no-index --find-links=/path/to/pip-packages pip

python -m pip install --ignore-installed --upgrade pip setuptools wheel

python -m pip install --user --upgrade pip

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple --upgrade pip

pip --default-timeout=1000 install --upgrade pip

python -m pip --version
pip list  # 查看所有安装的包
pip check  # 检查依赖冲突