无法在Mac12.3上安装psycopg2，我一直收到这个错误
无法在Mac12.3上安装psycopg2，我一直收到这个错误
提问于 2022-03-26 19:41:15
我最近买了一款MacBook Pro，并为python编程做了准备，但我最后在安装psycopg2时遇到了问题，我已经尝试过几件事情了，但是没有一件对我有用，这里留下了错误，
Collecting psycopg2
Using cached psycopg2-2.9.3.tar.gz (380 kB)
Preparing metadata (setup.py) ... error
error: subprocess-exited-with-error
× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> [23 lines of output]
running egg_info
creating /private/var/folders/7f/ssr40bmj6t3_yq0cv_43cttc0000gn/T/pip-pip-egg-info-noe7l09b/psycopg2.egg-info
writing /private/var/folders/7f/ssr40bmj6t3_yq0cv_43cttc0000gn/T/pip-pip-egg-info-noe7l09b/psycopg2.egg-info/PKG-INFO
writing dependency_links to /private/var/folders/7f/ssr40bmj6t3_yq0cv_43cttc0000gn/T/pip-pip-egg-info-noe7l09b/psycopg2.egg-info/dependency_links.txt
writing top-level names to /private/var/folders/7f/ssr40bmj6t3_yq0cv_43cttc0000gn/T/pip-pip-egg-info-noe7l09b/psycopg2.egg-info/top_level.txt
writing manifest file '/private/var/folders/7f/ssr40bmj6t3_yq0cv_43cttc0000gn/T/pip-pip-egg-info-noe7l09b/psycopg2.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 $PATH or specify the full executable path with the
option:
python setup.py build_ext --pg-config /path/to/pg_config build ...
or with the pg_config option in 'setup.cfg'.
If you prefer to avoid building psycopg2 from source, please install the PyPI
'psycopg2-binary' package instead.
For further information please check the 'doc/src/install.rst' file (also at
<https://www.psycopg.org/docs/install.html>).
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed
× Encountered error while generating package metadata.
╰─> See above for output.
note: This is an issue with the package mentioned above, not pip.
hint: See above for details.这表明它不是pip的问题，而是setup.py的问题，但是找不到任何东西，
任何帮助都将受到欢迎
谢谢
回答 3
Stack Overflow用户
发布于 2022-07-20 06:56:27
正如亚历克斯所提到的，是PostGreSQL没有安装在您的系统上，引发了错误安装PostGreSQL，并且所有这些都会很好地运行--尝试如下
❯ brew install postgresql
# If you open a new terminal tab you will see that pg_config is available
❯ export CPPFLAGS="-I/opt/homebrew/opt/openssl@1.1/include"
❯ export LDFLAGS="-L/opt/homebrew/opt/openssl@1.1/lib -L${HOME}/.pyenv/versions/3.8.10/lib"
❯ python -V
Python 3.9.13
❯ pip install psycopg2-binary==2.8.6```Stack Overflow用户
发布于 2022-06-01 22:27:37
尝试使用以下命令：
pip3 install psycopg2-binaryStack Overflow用户
发布于 2022-06-10 02:47:32
很晚了，但我只是遇到了这个问题，没有什么能解决的。我试图在一台新Mac上安装一个正在进行的项目的requirements.txt。最后，我想起了这是一个postgresql包，我还没有安装postgresql。一旦我安装了postgresql并再次尝试安装psycopg2，它就可以正常工作，没有任何错误。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/71631259
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