我正在尝试安装psycopg2，但始终出现此错误：
Collecting psycopg2
Using cached psycopg2-2.8.5.tar.gz (380 kB)
Using legacy setup.py install for psycopg2, since package 'wheel' is not installed.
Installing collected packages: psycopg2
Running setup.py install for psycopg2 ... error
ERROR: Command errored out with exit status 1:
command: /home/yovel/PycharmProjects/scr/venv/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-8vyzoc4h/psycopg2/setup.py'"'"'; __file__='"'"'/tmp/pip-install-8vyzoc4h/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-fq16err7/install-record.txt --single-version-externally-managed --compile --install-headers /home/yovel/PycharmProjects/scr/venv/include/site/python3.8/psycopg2
cwd: /tmp/pip-install-8vyzoc4h/psycopg2/
Complete output (40 lines):
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.8
creating build/lib.linux-x86_64-3.8/psycopg2
copying lib/pool.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/sql.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/_lru_cache.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/extensions.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/extras.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/_json.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/__init__.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/errors.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/errorcodes.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/_ipaddress.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/tz.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/compat.py -> build/lib.linux-x86_64-3.8/psycopg2
copying lib/_range.py -> build/lib.linux-x86_64-3.8/psycopg2
running build_ext
building 'psycopg2._psycopg' extension
creating build/temp.linux-x86_64-3.8
creating build/temp.linux-x86_64-3.8/psycopg
x86_64-linux-gnu-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPSYCOPG_VERSION=2.8.5 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120002 -DHAVE_LO64=1 -I/home/yovel/PycharmProjects/scr/venv/include -I/usr/include/python3.8 -I. -I/usr/include/postgresql -I/usr/include/postgresql/12/server -c psycopg/psycopgmodule.c -o build/temp.linux-x86_64-3.8/psycopg/psycopgmodule.o -Wdeclaration-after-statement
In file included from psycopg/psycopgmodule.c:28:
./psycopg/psycopg.h:36:10: fatal error: libpq-fe.h: No such file or directory
36 | #include <libpq-fe.h>
| ^~~~~~~~~~~~
compilation terminated.
It appears you are missing some prerequisite to build the package from source.
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
<https://www.psycopg.org/docs/install.html>).
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
----------------------------------------
ERROR: Command errored out with exit status 1: /home/yovel/PycharmProjects/scr/venv/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-8vyzoc4h/psycopg2/setup.py'"'"'; __file__='"'"'/tmp/pip-install-8vyzoc4h/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-fq16err7/install-record.txt --single-version-externally-managed --compile --install-headers /home/yovel/PycharmProjects/scr/venv/include/site/python3.8/psycopg2 Check the logs for full command output.
我可以使用psycopg2-binary安装和使用它，但是我需要安装它，因为它是一个依赖项（对于django-heroku）。
我尝试安装libpq-dev，但出现此错误：
The following packages have unmet dependencies:
libpq-dev : Depends: libpq5 (= 12.2-4) but 12.3-1.pgdg20.04+1 is to be installed
E: Unable to correct problems, you have held broken packages
并使用sudo apt-get install libpq5
0 upgraded, 0 newly installed, 0 to remove and 12 not upgraded.