由于环境错误而无法安装软件包：[Errno 2]没有这样的文件或目录：…

Question

I have two python 3 locations. One is located here,

"C:\\Users\\Ryano\\AppData\\Local\\Programs\\Python\\Python37-32"

The other is related to Anaconda3 here,

"C:\\Users\\Ryano\\Anaconda3"

I want run a .py file that uses the numpy package in the command prompt using the Anaconda3 python version. I go to import numpy and it doesn't recognize it:

C:\\Users\\Ryano\\Anaconda3>python

Python 3.7.1 (default, Oct 28 2018, 08:39:03) [MSC v.1912 64 bit (AMD64)] :: Anaconda, Inc. on win32 Type "help", "copyright", "credits" or "license" for more information.

import numpy

Traceback (most recent call last): File "", line 1, in ModuleNotFoundError: No module named 'numpy'

So I go to install the numpy package to the Anaconda 3 version python and this error pops up:

C:\\Users\\Ryano\\Anaconda3\\Scripts>pip install numpy

Collecting numpy Using cached https://files.pythonhosted.org/packages/00/0e/5a8c34adb97fc1cd6636d78050e575945e874c8516d501421d5a0f377a6c/numpy-1.15.4-cp37-none-win_amd64.whl Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: 'c:\\users\\ryano\\anaconda3\\lib\\site-packages\\html5lib-1.0.1.dist-info\\METADATA'

Looking at the other posts similar to this one I could not find any solution that worked for my computer. Essentially I'm having issues with installing using pip.

Answer 1

重新安装html5lib与conda ：

conda install html5lib

Answer 2

There can be issues with using multiple installations on Windows.

Please check the answer to this question: what is the process of installing and working with PIL - Python Imaging Library ?

Hopefully one of the questions will fix the issue. If not, let me know.