安装 django-observer 包的问题答案

【问题标题】：Problems installing django-observer package安装 django-observer 包的问题
【发布时间】：2021-03-22 07:14:37
【问题描述】：

您好，我正在尝试在我的 Win10 PC 上安装适用于 python3 的 django-observer，但我不断收到以下错误消息：

Collecting django-observer
  Using cached django-observer-0.4.3.tar.gz (7.4 kB)
Requirement already satisfied: django>=1.2 in c:\users\luca dieling\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from django-observer) (3.1.4)
Collecting distribute
  Using cached distribute-0.7.3.zip (145 kB)
    ERROR: Command errored out with exit status 1:
     command: 'C:\Users\Luca Dieling\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Luca Dieling\\AppData\\Local\\Temp\\pip-install-k757dx1_\\distribute_c11e8be23eda49c7809d38d8e88b222e\\setup.py'"'"'; __file__='"'"'C:\\Users\\Luca Dieling\\AppData\\Local\\Temp\\pip-install-k757dx1_\\distribute_c11e8be23eda49c7809d38d8e88b222e\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\Luca Dieling\AppData\Local\Temp\pip-pip-egg-info-00os3tdp'
         cwd: C:\Users\Luca Dieling\AppData\Local\Temp\pip-install-k757dx1_\distribute_c11e8be23eda49c7809d38d8e88b222e\
    Complete output (15 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Users\Luca Dieling\AppData\Local\Temp\pip-install-k757dx1_\distribute_c11e8be23eda49c7809d38d8e88b222e\setuptools\__init__.py", line 2, in <module>
        from setuptools.extension import Extension, Library
      File "C:\Users\Luca Dieling\AppData\Local\Temp\pip-install-k757dx1_\distribute_c11e8be23eda49c7809d38d8e88b222e\setuptools\extension.py", line 5, in <module>
        from setuptools.dist import _get_unpatched
      File "C:\Users\Luca Dieling\AppData\Local\Temp\pip-install-k757dx1_\distribute_c11e8be23eda49c7809d38d8e88b222e\setuptools\dist.py", line 7, in <module>
        from setuptools.command.install import install
      File "C:\Users\Luca Dieling\AppData\Local\Temp\pip-install-k757dx1_\distribute_c11e8be23eda49c7809d38d8e88b222e\setuptools\command\__init__.py", line 8, in <module>
        from setuptools.command import install_scripts
      File "C:\Users\Luca Dieling\AppData\Local\Temp\pip-install-k757dx1_\distribute_c11e8be23eda49c7809d38d8e88b222e\setuptools\command\install_scripts.py", line 3, in <module>
        from pkg_resources import Distribution, PathMetadata, ensure_directory
      File "C:\Users\Luca Dieling\AppData\Local\Temp\pip-install-k757dx1_\distribute_c11e8be23eda49c7809d38d8e88b222e\pkg_resources.py", line 1518, in <module>
        register_loader_type(importlib_bootstrap.SourceFileLoader, DefaultProvider)
    AttributeError: module 'importlib._bootstrap' has no attribute 'SourceFileLoader'
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

我正在运行命令 pip install django-observer

感谢您的帮助

【问题讨论】：

标签： python python-3.x django pip

【解决方案1】：

这个django-observer 包很久没有维护了。 github repository 声明它适用于 Python 3 版本 3.2 和 3.3。因此，您可能会很幸运地使用 python 3.2 或 3.3 设置 virtualenv 并从那里开始工作。

该包似乎完成了与 Django Signals 类似的工作。你可以阅读他们here。信号是观察者模式的一种实现。

仅供参考，我也尝试安装该软件包，但在我的 MacOS 机器上遇到了同样的错误。这就是我建议切换到 Signals 的原因。

【讨论】：