在mac上安装psycopg2时报错
>>> pip3 install psycopg2
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting psycopg2
Using cached https://pypi.tuna.tsinghua.edu.cn/packages/aa/8a/7c80e7e44fb1b4277e89bd9ca509aefdd4dd1b2c547c6f293afe9f7ffd04/psycopg2-2.9.1.tar.gz (379 kB)
ERROR: Command errored out with exit status 1:
command: /usr/local/opt/python@3.8/bin/python3.8 -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/zy/mrl8lxzn0k38zl59kszbhnv80000gn/T/pip-install-5ket726k/psycopg2_f57f2dc854d549fd9c34415057728ca4/setup.py'"'"'; __file__='"'"'/private/var/folders/zy/mrl8lxzn0k38zl59kszbhnv80000gn/T/pip-install-5ket726k/psycopg2_f57f2dc854d549fd9c34415057728ca4/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file

在尝试使用pip3安装psycopg2时遇到了错误,提示找不到pg_config可执行文件。解决方法是首先通过homebrew安装postgresql,然后再次运行pip3 install psycopg2。按照此步骤可以避免从源代码编译psycopg2,或者可以选择安装预编译的'psycopg2-binary'包。
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