gensim已安装在anaconda env中，但不会导入到jupyter笔记本中

Question

I'm trying to install gensim in a specific conda env on my Python 3 only, Windows 10 machine. I've tried 3 different ways based on suggestions in SO and elsewhere, summarized below. Each time it shows as successfully installed and present in the env, but when I try to import it in jupyter notebook I get the ModuleNotFoundError: No module named 'gensim' error.

Note: I closed and relaunched anaconda and jupyter after each install.

SUMMARY: 3 attempts with 3 install commands:

COMMAND                              CONDA LIST                              IMPORT IN JUPYTER NOTEBOOK
conda install -c anaconda gensim     gensim 3.4.0 py36hfa6e2cd_0 anaconda    ModuleNotFoundError: No module named 'gensim'
pip install -U gensim                gensim 3.7.3 pypi_0 pypi                ModuleNotFoundError: No module named 'gensim'
conda install -c conda-forge gensim  gensim 3.7.3 py36h6538335_0 conda-forge ModuleNotFoundError: No module named 'gensim'

(base) C:\Users\kb>conda activate SARC
(SARC) C:\Users\kb>conda install -c anaconda gensim
(SARC) C:\Users\kb>conda list
. . .
gensim                    3.4.0            py36hfa6e2cd_0    anaconda
. . .

. . .

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-1-e92e291fb8cb> in <module>
      1 import loader
      2 import reader
----> 3 import transformers
      4 import vectorization

~\OneDrive\Documents\ds\courses_books\Applied_Text_Analysis_Python_book_code\atap-master\snippets\ch04\transformers.py in <module>
      3 import os
      4 import nltk
----> 5 import gensim
      6 import unicodedata
      7 

ModuleNotFoundError: No module named 'gensim'

Details of the install commands and output can be seen here .

Answer 1

Per our discussion in the comments, when you launch via jupyter directly, it seems you're using some other (perhaps system-wide) Python interpreter & environment – one which doesn't have gensim installed – even though you've "activated" your SARC environment. (Essentially, "activating" an environment tries to alias python & some other things to use the right enviroment, but other commands might still reach out to some other Python installation.)

Per @furas' suggestion of using python -m jupyter notebook , you'll be sure to invoke plain python , and thus the SARC environment – and thus test whether gensim and/or jupyter are even really installed inside the SARC environment.

If not, be sure to install them there, and make sure any interpreters/notebooks you launch truly use the intended environment.