python - 为什么 PIP 不升级包

Question

为什么 pip 没有安装最新版本？有没有办法强制 LATEST？

$ sudo pip install --upgrade pefile
Requirement already up-to-date: pefile in /usr/local/lib/python2.7/dist-packages
Cleaning up...

$ pip show pefile
---
Name: pefile
Version: 1.2.10-114
Location: /usr/local/lib/python2.7/dist-packages
Requires:

$ pip search "pefile"
pefile                    - Python PE parsing module
  INSTALLED: 1.2.10-114
  LATEST:    1.2.10-139

$ sudo pip install --upgrade --force-reinstall --pre pefile 
Downloading/unpacking pefile
  Downloading pefile-1.2.10-114.tar.gz (49kB): 49kB downloaded
  Running setup.py (path:/tmp/pip_build_root/pefile/setup.py) egg_info for package pefile

Installing collected packages: pefile
  Found existing installation: pefile 1.2.10-114
    Uninstalling pefile:
      Successfully uninstalled pefile
  Running setup.py install for pefile

Successfully installed pefile
Cleaning up...

注意:

$ pip list
pefile (1.2.10-114)
pip (1.5.6)

引用资料: https://code.google.com/p/pefile/

Answer 1

如果您查看 1.2.10-114 的 pefile 页面和 1.2.10-139 - 你会看到一个重要的区别，后者没有带有源和鸡蛋的"file"部分。这意味着文件托管在外部，您需要允许 pip 从 external 安装和 unverified来源:

pip install pefile --upgrade --allow-external=pefile --allow-unverified=pefile

演示:

$ pip show pefile
---
Name: pefile
Version: 1.2.10-114

$ pip install pefile --upgrade --allow-external=pefile --allow-unverified=pefile
pefile an externally hosted file and may be unreliable
pefile is potentially insecure and unverifiable.
...
Installing collected packages: pefile
  Found existing installation: pefile 1.2.10-114
    Uninstalling pefile:
      Successfully uninstalled pefile
  Running setup.py install for pefile

Successfully installed pefile
Cleaning up...

$ pip show pefile
---
Name: pefile
Version: 1.2.10-139