即使我使用 pip 安装 psycopg2 后，我仍然得到 Nomatching distribution found for psycopg2

Question

我已经为此工作了一个多星期了，版本问题似乎无穷无尽。我下载了一个复杂的 Django 应用程序，它有多个安装脚本。这是非常复杂的。

我遇到了一个需要通过删除 Pipfile.lock 来修复的错误，然后我遇到了一些“缺少模块”错误，我手动执行了：

pip3 install importlib_metadata

pip3 install ConfigParser

但现在我尝试：

pipenv lock

我收到绝对无穷无尽的错误消息，其中一小部分看起来像：

ERROR:pip.subprocessor:Command errored out with exit status 1:
 command: /home/ec2-user/.local/share/virtualenvs/blueflow-c7ciKYpf/bin/python -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pipenv-233zg4_c-build/psycopg2_a87c46885ac64bcd839843d942c021c6/setup.py'"'"'; __file__='"'"'/tmp/pipenv-233zg4_c-build/psycopg2_a87c46885ac64bcd839843d942c021c6/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' --no-user-cfg egg_info --egg-base /tmp/pip-pip-egg-info-t04x5e3y
     cwd: /tmp/pipenv-233zg4_c-build/psycopg2_a87c46885ac64bcd839843d942c021c6/
Complete output (6 lines):
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/tmp/pipenv-233zg4_c-build/psycopg2_a87c46885ac64bcd839843d942c021c6/setup.py", line 225
    except Warning, w:
                  ^
SyntaxError: invalid syntax
----------------------------------------
ERROR:pip.subprocessor:Command errored out with exit status 1:
 command: /home/ec2-user/.local/share/virtualenvs/blueflow-c7ciKYpf/bin/python -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pipenv-233zg4_c-build/psycopg2_4e8ce76ba6cc49a19dc4f3ec22a582aa/setup.py'"'"'; __file__='"'"'/tmp/pipenv-233zg4_c-build/psycopg2_4e8ce76ba6cc49a19dc4f3ec22a582aa/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' --no-user-cfg egg_info --egg-base /tmp/pip-pip-egg-info-liszsbkl
     cwd: /tmp/pipenv-233zg4_c-build/psycopg2_4e8ce76ba6cc49a19dc4f3ec22a582aa/
Complete output (5 lines):
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/tmp/pipenv-233zg4_c-build/psycopg2_4e8ce76ba6cc49a19dc4f3ec22a582aa/setup.py", line 50, in <module>
    import ConfigParser
ModuleNotFoundError: No module named 'ConfigParser'
----------------------------------------
CRITICAL:pipenv.patched.notpip._internal.resolution.resolvelib.factory:Could not find a version that satisfies the requirement psycopg2 (from versions: 2.0.10, 2.0.11, 2.0.12, 2.0.13, 2.0.14, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.3.2, 2.4, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.4.5, 2.4.6, 2.5, 2.5.1, 2.5.2, 2.5.3, 2.5.4, 2.5.5, 2.6, 2.6.1, 2.6.2, 2.7, 2.7.1, 2.7.2, 2.7.3, 2.7.3.1, 2.7.3.2, 2.7.4, 2.7.5, 2.7.6, 2.7.6.1, 2.7.7, 2.8, 2.8.1, 2.8.2, 2.8.3, 2.8.4, 2.8.5, 2.8.6, 2.9, 2.9.1, 2.9.2, 2.9.3)
[ResolutionFailure]:   File "/usr/local/lib/python3.6/site-packages/pipenv/resolver.py", line 743, in _main
[ResolutionFailure]:       resolve_packages(pre, clear, verbose, system, write, requirements_dir, packages, dev)
[ResolutionFailure]:   File "/usr/local/lib/python3.6/site-packages/pipenv/resolver.py", line 711, in resolve_packages
[ResolutionFailure]:       requirements_dir=requirements_dir,
[ResolutionFailure]:   File "/usr/local/lib/python3.6/site-packages/pipenv/resolver.py", line 693, in resolve
[ResolutionFailure]:       req_dir=requirements_dir
[ResolutionFailure]:   File "/usr/local/lib/python3.6/site-packages/pipenv/utils.py", line 1385, in resolve_deps
[ResolutionFailure]:       req_dir=req_dir,
[ResolutionFailure]:   File "/usr/local/lib/python3.6/site-packages/pipenv/utils.py", line 1106, in actually_resolve_deps
[ResolutionFailure]:       resolver.resolve()
[ResolutionFailure]:   File "/usr/local/lib/python3.6/site-packages/pipenv/utils.py", line 884, in resolve
[ResolutionFailure]:       raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
  You can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
  Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: No matching distribution found for psycopg2

但是它的核心似乎是：

ERROR: No matching distribution found for psycopg2

我正在尝试弄清楚如何安装它，但我也很好奇是否有人有一些可能有助于解决所有这些错误的元级评论。

我应该补充一点，我可以这样做：

pip3 install psycopg2-binary

这会成功，但是当我这样做时：

pipenv lock

我仍然得到：

ERROR: No matching distribution found for psycopg2

我还看到这一行：

“默认为用户安装，因为正常的站点包不可写”

如果我知道正常的< code>site-packages 是，我会让它可写，但我不知道。

如果我尝试：

 pip3 install psycopg2

我得到：

 Error: pg_config executable not found.

而且：

WARNING: Discarding https://files.pythonhosted.org/packages/19/79/35c7596bab4456f3610c12ec542a94d51c6781ced587d1d85127210b879b/psycopg2-2.0.10.tar.gz#sha256=e40cc04b43849085725076ae134bfef9e3b087f6dd7c964aeeb930e2f0bc14ab (from https://pypi.org/simple/psycopg2/). Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
ERROR: Could not find a version that satisfies the requirement psycopg2 (from versions: 2.0.10, 2.0.11, 2.0.12, 2.0.13, 2.0.14, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.3.2, 2.4, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.4.5, 2.4.6, 2.5, 2.5.1, 2.5.2, 2.5.3, 2.5.4, 2.5.5, 2.6, 2.6.1, 2.6.2, 2.7, 2.7.1, 2.7.2, 2.7.3, 2.7.3.1, 2.7.3.2, 2.7.4, 2.7.5, 2.7.6, 2.7.6.1, 2.7.7, 2.8, 2.8.1, 2.8.2, 2.8.3, 2.8.4, 2.8.5, 2.8.6, 2.9, 2.9.1, 2.9.2, 2.9.3)
ERROR: No matching distribution found for psycopg2

我不能再花一周的时间在这上面。我想知道是否有某种方法可以突破并让一切正常运转。难道真的没有办法让 Python 做更多的工作来确定需要安装哪些依赖项吗？