conda 环境如何干扰系统安装？

编程问答 2022-05-03

问题描述

我（有）系统安装了 python 2.7、keras 和 tensorflow 工作正常。

今天我创建了一些新的 conda 环境，并在其中安装了几个包，包括较新的 tensorflow 版本。

我所做的所有安装都是首先激活感兴趣的环境，然后在环境中使用 conda install 和/或 pip install（每当我之前在所述环境中执行 conda install pip 时都使用 pip）。

现在，出于某种原因，在停用所有 conda 环境并返回到我的系统“环境”（未激活 conda）后，我无法再导入 keras 或 tensorflow，两者都抱怨某个模块 "gast"（请参阅下面是错误消息）。

这令人困惑，因为 conda 不应该接触环境之外的任何东西。我的python和模块都在conda之外。

which pip,which spyder,which python .. 等等，都指向 /usr/bin

可能出了什么问题？我该如何修复损坏的系统模块？

我的系统通过 pip 安装了 keras 和 tensorflow。 conda 的 pip 会干扰他们吗？

pip show tensorflow-gpu


Name: tensorflow-gpu
Version: 1.14.0
Summary: TensorFlow is an open source machine learning framework for everyone.
Home-page: https://www.tensorflow.org/
Author: Google Inc.
Author-email: packages@tensorflow.org
License: Apache 2.0
Location: /home/user/.local/lib/python2.7/site-packages
Requires: grpcio,mock,keras-applications,enum34,tensorboard,wrapt,protobuf,keras-preprocessing,gast,wheel,numpy,termcolor,six,absl-py,tensorflow-estimator,google-pasta,backports.weakref,astor


pip show keras


Name: Keras
Version: 2.3.1
Summary: Deep Learning for humans
Home-page: https://github.com/keras-team/keras
Author: Francois Chollet
Author-email: francois.chollet@gmail.com
License: MIT
Location: /home/user/.local/lib/python2.7/site-packages
Requires: keras-applications,scipy,h5py,pyyaml,six

>>> import tensorflow


Traceback (most recent call last):
  File "<stdin>",line 1,in <module>
  File "/home/user/.local/lib/python2.7/site-packages/tensorflow/__init__.py",line 28,in <module>
    from tensorflow.python import pywrap_tensorflow  # pylint: disable=unused-import
  File "/home/user/.local/lib/python2.7/site-packages/tensorflow/python/__init__.py",line 73,in <module>
    from tensorflow.python.ops.standard_ops import *
  File "/home/user/.local/lib/python2.7/site-packages/tensorflow/python/ops/standard_ops.py",line 25,in <module>
    from tensorflow.python import autograph
  File "/home/user/.local/lib/python2.7/site-packages/tensorflow/python/autograph/__init__.py",line 37,in <module>
    from tensorflow.python.autograph.core.converter import Conversionoptions
  File "/home/user/.local/lib/python2.7/site-packages/tensorflow/python/autograph/core/converter.py",line 69,in <module>
    from tensorflow.python.autograph.pyct import anno
  File "/home/user/.local/lib/python2.7/site-packages/tensorflow/python/autograph/pyct/anno.py",line 27,in <module>
    import gast
ImportError: No module named gast



import keras


Using TensorFlow backend.
Traceback (most recent call last):
  File "<stdin>",in <module>
  File "/home/user/.local/lib/python2.7/site-packages/keras/__init__.py",line 3,in <module>
    from . import utils
  File "/home/user/.local/lib/python2.7/site-packages/keras/utils/__init__.py",line 6,in <module>
    from . import conv_utils
  File "/home/user/.local/lib/python2.7/site-packages/keras/utils/conv_utils.py",line 9,in <module>
    from .. import backend as K
  File "/home/user/.local/lib/python2.7/site-packages/keras/backend/__init__.py",in <module>
    from .load_backend import epsilon
  File "/home/user/.local/lib/python2.7/site-packages/keras/backend/load_backend.py",line 90,in <module>
    from .tensorflow_backend import *
  File "/home/user/.local/lib/python2.7/site-packages/keras/backend/tensorflow_backend.py",line 5,in <module>
    import tensorflow as tf
  File "/home/user/.local/lib/python2.7/site-packages/tensorflow/__init__.py",in <module>
    import gast
ImportError: No module named gast

解决方法

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