重新安装 pip install opencv-python 时出错

Question

我的病毒扫描程序今天想删除opencv_xfeatures2d430.dll ，因为它感染了Win64: Evo-gen [Susp] ... 不幸的是，这意味着 Opencv 不再有效。 (Win 10) 我心里想，那我就卸载了再安装：

pip uninstall opencv-python

pip install opencv-python

但这现在导致以下错误消息......

C: \ Users \ bla \ Desktop \ WorkingDir \ TranslationsUntersprüfung> pip install opencv-python
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support pip 21.0 will remove support for this functionality.
Collecting opencv-python
  Using cached opencv-python-4.3.0.38.tar.gz (88.0 MB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  ERROR: Command errored out with exit status 1:
   command: 'c: \ python27 \ python.exe' 'c: \ python27 \ lib \ site-packages \ pip \ _vendor \ pep517 \ _in_process.py' get_requires_for_build_wheel 'c: \ users \ bla \ appdata \ local \ temp \ tmp582u8m '
       cwd: c: \ users \ bla \ appdata \ local \ temp \ pip-install-otbseb \ opencv-python
  Complete output (22 lines):
  Traceback (most recent call last):
    File "c: \ python27 \ lib \ site-packages \ pip \ _vendor \ pep517 \ _in_process.py", line 280, in <module>
      Main()
    File "c: \ python27 \ lib \ site-packages \ pip \ _vendor \ pep517 \ _in_process.py", line 263, in main
      json_out ['return_val'] = hook (** hook_input ['kwargs'])
    File "c: \ python27 \ lib \ site-packages \ pip \ _vendor \ pep517 \ _in_process.py", line 114, in get_requires_for_build_wheel
      return hook (config_settings)
    File "c: \ users \ bla \ appdata \ local \ temp \ pip-build-env-ec2cyy \ overlay \ Lib \ site-packages \ setuptools \ build_meta.py", line 146, in get_requires_for_build_wheel
      return self._get_build_requires (config_settings, requirements = ['wheel'])
    File "c: \ users \ bla \ appdata \ local \ temp \ pip-build-env-ec2cyy \ overlay \ Lib \ site-packages \ setuptools \ build_meta.py", line 127, in _get_build_requires
      self.run_setup ()
    File "c: \ users \ bla \ appdata \ local \ temp \ pip-build-env-ec2cyy \ overlay \ Lib \ site-packages \ setuptools \ build_meta.py", line 243, in run_setup
      self) .run_setup (setup_script = setup_script)
    File "c: \ users \ bla \ appdata \ local \ temp \ pip-build-env-ec2cyy \ overlay \ Lib \ site-packages \ setuptools \ build_meta.py", line 142, in run_setup
      exec (compile (code, __file__, 'exec'), locals ())
    File "setup.py", line 448, in <module>
      Main()
    File "setup.py", line 99, in main
      % {"ext": re.escape (sysconfig.get_config_var ("EXT_SUFFIX"))}
    File "c: \ python27 \ lib \ re.py", line 210, in escape
      s = list (pattern)
  TypeError: 'NoneType' object is not iterable
  ----------------------------------------
ERROR: Command errored out with exit status 1: 'c: \ python27 \ python.exe' 'c: \ python27 \ lib \ site-packages \ pip \ _vendor \ pep517 \ _in_process.py' get_requires_for_build_wheel 'c: \ users \ bla \ appdata \ local \ temp \ tmp582u8m 'Check the logs for full command output.

有人可以帮我吗？ 我找不到“日志”，它们在哪里？ 昨天一切都好...

Answer 1

pip2 install opencv-python==4.2.0.32

解决了！

Python 2.7 通过pip（虚拟环境）安装opencv