如何在 Anaconda 中将 Python 从 3.7 降级到 3.5
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How to downgrade Python from 3.7 to 3.5 in Anaconda
提问by Anonymous
I've been trying to downgrade the version of Python in Anaconda as it doesn't support TensorFlow and I get the following error(s):
我一直在尝试降级 Anaconda 中的 Python 版本，因为它不支持 TensorFlow，并且出现以下错误：
回答by guru
You can create a new environment for your experiments:
您可以为您的实验创建一个新环境：
conda create -n new_environment python=3.5
Or install anaconda with another python version (http://docs.anaconda.com/anaconda/user-guide/faq/#how-do-i-get-the-latest-anaconda-with-python-3-5)
或者使用另一个 python 版本安装 anaconda ( http://docs.anaconda.com/anaconda/user-guide/faq/#how-do-i-get-the-latest-anaconda-with-python-3-5)
回答by David Deprost
From your error output it is clear there is a dependency conflict:
backports.os requires python 2.7.
从您的错误输出中可以明显看出存在依赖冲突：
backports.os 需要 python 2.7。
Simply uninstall backports.os like this:
conda uninstall backports.os
And then downgrade Python:
conda install python=3.5
只需像这样卸载 backports.os：
conda uninstall backports.os
然后降级 Python：
conda install python=3.5
The fact that you're on Python 3.7, but backports.os is still requiring Python 2.7 is proof something has gone wrong with your setup. If you still require backports.os, simply reinstall it when Python is downgraded: conda install backports.os.
您使用的是 Python 3.7，但 backports.os 仍然需要 Python 2.7，这一事实证明您的设置出现了问题。如果您仍然需要backports.os，只需重新安装它时，Python是降级：conda install backports.os。
回答by fuwiak
Try virtualenv:
尝试虚拟环境：
[sudo] pip install virtualenv
After installation:
安装后：
python3 -m venv /path/to/new/virtual/environment
Run
跑
source my_project/bin/activate
