我试图安装一个需要psycopg2作为依赖项的软件包，所以我使用pip install psycopg2-binary安装了psycopg2-binary，但当我尝试pip install django-tenant-schemas时，我得到了这个错误：

In file included from psycopg/psycopgmodule.c:27:0:
./psycopg/psycopg.h:34:10: fatal error: Python.h: No such file or directory
     #include <Python.h>
              ^~~~~~~~~~
    compilation terminated.

You may install a binary package by installing 'psycopg2-binary' from PyPI.
If you want to install psycopg2 from source, please install the packages required for the build and try again.

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

error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

ERROR: Command errored out with exit status 1: 
/home/david/PycharmProjects/clearpath/venv/bin/python -u 
-c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-ckbbq00w/psycopg2/setup.py'"'"'; __file__='"'"'/tmp/pip-install-ckbbq00w/psycopg2/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install
--record /tmp/pip-record-pi6j7x5l/install-record.txt
--single-version-externally-managed
--compile
--install-headers /home/david/PycharmProjects/clearpath/venv/include/site/python3.7/psycopg2 Check the logs for full command output.

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当我进入我的项目（使用PyCharm）repo设置时，我可以看到psycopg 2-binary已经安装。我认为这与PATH有关，但我似乎无法解决这个问题。
which psql：/usr/bin/psql
which pg_config：/usr/bin/pg_config
我不喜欢在环境变量中做太多的事情，因为我真的不想破坏一些东西。