On linux I am managing Python via anaconda. However, as there was no good support for amplpy, I installed that via pip.
Now, When I am in ipython, I can do
In [1]: import amplpy
In [3]: amplpy
Out[3]: <module 'amplpy' from '/home/x/anaconda3/envs/myenv3/lib/python3.6/site-packages/amplpy/__init__.py'>
and similarly if I run from bare python. However, when I start jupyter notebook
(myenv3) x:yy$ jupyter notebook
and open a fresh python 3 sheet, I get
ModuleNotFoundError Traceback (most recent call last)
<ipython-input-2-93ba964328c9> in <module>()
----> 1 import amplpy
ModuleNotFoundError: No module named 'amplpy'
sys.path gives me
['',
'/home/x/anaconda3/lib/python36.zip',
'/home/x/anaconda3/lib/python3.6',
'/home/x/anaconda3/lib/python3.6/lib-dynload',
'/home/x/anaconda3/lib/python3.6/site-packages',
'/home/x/anaconda3/lib/python3.6/site-packages/Sphinx-1.5.6-py3.6.egg',
'/home/x/anaconda3/lib/python3.6/site-packages/setuptools-27.2.0-py3.6.egg',
'/home/x/anaconda3/lib/python3.6/site-packages/IPython/extensions',
'/home/x/.ipython']
Which is the wrong folder! ipython has /home/x/anaconda3/envs/myenv3/lib/... as path!
What can cause such inconsistency, and how do I fix it?
Most probably, you've installed the module to a different environment than the one your jupyter command is using (e.g. if there' no jupyter in your "myenv3", whatever else is found on the PATH will be used). See e.g. Keras import error Nadam for troubleshooting tips.