错误：找不到pg_config可执行文件。尽管我已经在环境变量中添加了pg_config的路径

Question

我正在尝试设置saleor（基于Django）。我做了一个“python-mpipinstall-r要求.txt“正如网站上所说。一切都很顺利，直到安装收集psycopg2 binary==2.8.3然后抛出错误。我已经安装了Postgre，我在windows上。我还在我的环境变量中添加了pg_config的路径，因为它显示找不到pg_config可执行文件。我不确定如何继续。在

以下是显示的错误：

ERROR: Command errored out with exit status 1:
     command: 'C:\Users\ASPIRE\AppData\Local\Programs\Python\Python38-32\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\ASPIRE\\AppData\\Local\\Temp\\pip-install-d7c359c_\\psycopg2-binary\\setup.py'"'"'; __file__='"'"'C:\\Users\\ASPIRE\\AppData\\Local\\Temp\\pip-install-d7c359c_\\psycopg2-binary\\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\ASPIRE\AppData\Local\Temp\pip-install-d7c359c_\psycopg2-binary\pip-egg-info'
         cwd: C:\Users\ASPIRE\AppData\Local\Temp\pip-install-d7c359c_\psycopg2-binary\
    Complete output (23 lines):
    running egg_info
    creating C:\Users\ASPIRE\AppData\Local\Temp\pip-install-d7c359c_\psycopg2-binary\pip-egg-info\psycopg2_binary.egg-info
    writing C:\Users\ASPIRE\AppData\Local\Temp\pip-install-d7c359c_\psycopg2-binary\pip-egg-info\psycopg2_binary.egg-info\PKG-INFO
    writing dependency_links to C:\Users\ASPIRE\AppData\Local\Temp\pip-install-d7c359c_\psycopg2-binary\pip-egg-info\psycopg2_binary.egg-info\dependency_links.txt
    writing top-level names to C:\Users\ASPIRE\AppData\Local\Temp\pip-install-d7c359c_\psycopg2-binary\pip-egg-info\psycopg2_binary.egg-info\top_level.txt
    writing manifest file 'C:\Users\ASPIRE\AppData\Local\Temp\pip-install-d7c359c_\psycopg2-binary\pip-egg-info\psycopg2_binary.egg-info\SOURCES.txt'

    Error: pg_config executable not found.

    pg_config is required to build psycopg2 from source.  Please add the directory
    containing pg_config to the $PATH or specify the full executable path with the
    option:

        python setup.py build_ext --pg-config /path/to/pg_config build ...

    or with the pg_config option in 'setup.cfg'.

    If you prefer to avoid building psycopg2 from source, please install the PyPI
    'psycopg2-binary' package instead.

    For further information please check the 'doc/src/install.rst' file (also at
    <http://initd.org/psycopg/docs/install.html>).

    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

感谢任何帮助。谢谢

Answer 1

问题是环境变量PATH没有正确设置。它用于查找不在当前目录中的可执行文件。在

出于您的目的，您不必永久更改PATH：

• 用cmd.exe打开命令行（DOS框）。

• 用PATH查看当前设置。

• 使用更改当前会话的值

  SET PATH="C:\Program Files\PostgreSQL\12\bin";...
  

  其中...是当前设置。

现在它应该可以工作了。在