Conda's version information on package doesn&#

Question

I'm using anaconda

(myenv3) foo@foo:~$ which conda
/home/foo/anaconda3/bin/conda

where in "myenv3" I have dill=2.8.2 installed:

(myenv3) foo@foo:~$ conda list -n myenv3 dill
# packages in environment at /home/foo/anaconda3/envs/myenv3:
#
# Name                    Version                   Build  Channel
dill                      0.2.8.2                  py36_0    conda-forge

If I run python, I'll get exactly that environment:

(myenv3) foo@foo:~$ which python
/home/foo/anaconda3/envs/myenv3/bin/python

But if I do, dill appears to have an older version:

(myenv3) foo@foo:~$ python
Python 3.6.5 |Anaconda, Inc.| (default, Apr 29 2018, 16:14:56) 
[GCC 7.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import dill
>>> dill.__version__
'0.2.7.1'

Apparently, the file comes from elsewhere:

>>> dill.__file__
'/home/foo/.local/lib/python3.6/site-packages/dill/__init__.py'

It appears that in my include path, .local dominates the conda-specific folder:

>>> import sys
>>> sys.path
['', '/home/foo/anaconda3/envs/myenv3/lib/python36.zip', '/home/foo/anaconda3/envs/myenv3/lib/python3.6', '/home/foo/anaconda3/envs/myenv3/lib/python3.6/lib-dynload', '/home/foo/.local/lib/python3.6/site-packages', '/home/foo/anaconda3/envs/myenv3/lib/python3.6/site-packages']

Why -- and how can I fix that?

Context: I'm sharing dill-ed files between different computers. I started getting a ModuleNotFoundError: No module named 'dill._dill' error when reading the files on my local computer. I suspect this is because these files are dilled with the newer version, and my local computer is trying to read them with the older one. To test that, I'd like to upgrade dill on my local computer (or make the environment run the version it actually claims it is).

Answer 1

Thanks for @Sraw's comment for the pointer. To check which file is actually being read, do

>>> dill.__file__
'/home/foo/.local/lib/python3.6/site-packages/dill/__init__.py'

The reason for that can be found in the include path:

>>> import sys
>>> sys.path
['', '/home/foo/anaconda3/envs/myenv3/lib/python36.zip', '/home/foo/anaconda3/envs/myenv3/lib/python3.6', '/home/foo/anaconda3/envs/myenv3/lib/python3.6/lib-dynload', '/home/foo/.local/lib/python3.6/site-packages', '/home/foo/anaconda3/envs/myenv3/lib/python3.6/site-packages']

This particular path corresponds to pip. It's supposed to not install packages that are already installed with conda, but apparently it made a mistake here. Also it is unclear to me why the pip folder dominates the conda folder in the ordering, but it is what it is.

pip list

verified that it has the older version installed, and

pip uninstall dill

removed that old version.