pip 安装 MarkupSafe 包的 0.0.0 版

Question

我正在尝试在 Docker 中运行的 Ubuntu 16.04 上为 python 3.5 安装 MarkupSafe。跑步pip3 install markupsafe==2.0.1给予

Installing collected packages: markupsafe
Successfully installed markupsafe-0.0.0

我尝试重新安装，我试过pip3 install用-U，我仍然得到的版本0.0.0。跑步pip3 show -f markupsafe给予

---
Metadata-Version: 2.0
Name: MarkupSafe
Version: 0.0.0
Summary: UNKNOWN
Home-page: UNKNOWN
Author: UNKNOWN
Author-email: UNKNOWN
Installer: pip
License: UNKNOWN
Location: /usr/local/lib/python3.5/dist-packages
Requires: 
Classifiers:
Files:
  MarkupSafe-0.0.0.dist-info/DESCRIPTION.rst
  MarkupSafe-0.0.0.dist-info/INSTALLER
  MarkupSafe-0.0.0.dist-info/METADATA
  MarkupSafe-0.0.0.dist-info/RECORD
  MarkupSafe-0.0.0.dist-info/WHEEL
  MarkupSafe-0.0.0.dist-info/metadata.json
  MarkupSafe-0.0.0.dist-info/top_level.txt
  markupsafe/_speedups.cpython-35m-x86_64-linux-gnu.so
You are using pip version 8.1.1, however version 21.1.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

所以我可以看到__init__.py和其余的py文件都丢失了。这是唯一导致问题的包。跑步pip3 list -l给出：

...
distro (1.5.0)
fasteners (0.16)
future (0.18.2)
idna (2.10)
Jinja2 (2.11.3)
MarkupSafe (0.0.0)        <----
node-semver (0.6.1)
packaging (20.9)
patch-ng (1.17.4)
pluginbase (1.0.1)
Pygments (2.9.0)
...

（没有<----）

Answer 1

MarkupSafe1.1.1适用于 Python 2.7 和 3.4+，所以安装它

pip3 install "markupsafe==1.1.1"

或者

pip3 install "markupsafe<2.0"