python - 两个conda环境冲突

Question

我已经安装了日常使用的anaconda。最近，我安装了一个也支持python的商业软件。该软件将 miniconda 安装在另一个文件夹中，并为自身创建了一个环境。但是当我激活环境并使用 conda 或 'pip' 安装一些包时，发生了错误。例如，conda install scipy导致:

Traceback (most recent call last):
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\common\serialize.py", line 19, in get_yaml
    import ruamel_yaml as yaml
ModuleNotFoundError: No module named 'ruamel_yaml'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\common\serialize.py", line 22, in get_yaml
    import ruamel.yaml as yaml
ModuleNotFoundError: No module named 'ruamel'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\exceptions.py", line 1074, in __call__
    return func(*args, **kwargs)
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\cli\main.py", line 74, in _main
    from ..base.context import context
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\base\context.py", line 28, in <module>
    from ..common.configuration import (Configuration, ConfigurationLoadError, MapParameter,
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\common\configuration.py", line 40, in <module>
    from .serialize import yaml_load
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\common\serialize.py", line 30, in <module>
    yaml = get_yaml()
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\_vendor\auxlib\decorators.py", line 59, in _memoized_func
    result = func(*args, **kwargs)
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\common\serialize.py", line 24, in get_yaml
    raise ImportError("No yaml library available.\n"
ImportError: No yaml library available.
To proceed, conda install ruamel_yaml

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\common\serialize.py", line 19, in get_yaml
    import ruamel_yaml as yaml
ModuleNotFoundError: No module named 'ruamel_yaml'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\common\serialize.py", line 22, in get_yaml
    import ruamel.yaml as yaml
ModuleNotFoundError: No module named 'ruamel'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\Scripts\conda-script.py", line 12, in <module>
    sys.exit(main())
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\cli\main.py", line 150, in main
    return conda_exception_handler(_main, *args, **kwargs)
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\exceptions.py", line 1366, in conda_exception_handler
    return_value = exception_handler(func, *args, **kwargs)
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\exceptions.py", line 1077, in __call__
    return self.handle_exception(exc_val, exc_tb)
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\exceptions.py", line 1121, in handle_exception
    return self.handle_unexpected_exception(exc_val, exc_tb)
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\exceptions.py", line 1132, in handle_unexpected_exception
    self.print_unexpected_error_report(error_report)
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\exceptions.py", line 1187, in print_unexpected_error_report
    from .base.context import context
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\base\context.py", line 28, in <module>
    from ..common.configuration import (Configuration, ConfigurationLoadError, MapParameter,
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\common\configuration.py", line 40, in <module>
    from .serialize import yaml_load
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\common\serialize.py", line 30, in <module>
    yaml = get_yaml()
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\_vendor\auxlib\decorators.py", line 59, in _memoized_func
    result = func(*args, **kwargs)
  File "C:\ProgramData\Miniconda3\envs\GMS_VENV_PYTHON\lib\site-packages\conda\common\serialize.py", line 24, in get_yaml
    raise ImportError("No yaml library available.\n"
ImportError: No yaml library available.
To proceed, conda install ruamel_yaml

pip install scipy 导致:

Collecting scipy
  Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate (_ssl.c:1051)'))': /simple/scipy/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate (_ssl.c:1051)'))': /simple/scipy/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate (_ssl.c:1051)'))': /simple/scipy/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate (_ssl.c:1051)'))': /simple/scipy/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate (_ssl.c:1051)'))': /simple/scipy/
  Could not fetch URL https://pypi.org/simple/scipy/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/scipy/ (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate (_ssl.c:1051)'))) - skipping
  Could not find a version that satisfies the requirement scipy (from versions: )
No matching distribution found for scipy

有谁知道如何解决这个问题？

Answer 1

你应该先安装ruamel.yaml

pip install ruamel.yaml