user209974
user209974

Reputation: 1927

"ImportError: DLL load failed" in PyCharm w/ conda: how to automatically import conda's PATH?

I have installed python via conda, created a new environment, installed PyCharm and configured it to use this environment.

When I start a python console in PyCharm, I am greeted with a

C:\Users\9973879\AppData\Local\Continuum\miniconda3\envs\foo\lib\site-packages\IPython\core\history.py:226: UserWarning: IPython History requires SQLite, your history will not be saved

Indeed if I try to import sqlite3, I get a

ImportError: DLL load failed: The specified module could not be found.

However Project Interpreters > Interpreter Paths does list C:\Users\9973879\AppData\Local\Continuum\miniconda3\envs\foo\{DLLs, Lib, site-packages}. Also, importing this package from a python interpreter launched from the command line — in that very same virtual environment — succeeds.

EDIT

It seems the problem comes from the PATH environment variable. When calling conda activate foo, conda adds a bunch of folders to the PATH, containing various libraries (in particular sqlite3.dll).

When pointing to an existing environment (or creating a new one), PyCharm does automatically add folders to the PYTHONPATH as pointed out before, but does not seem to add anything to the PATH.

I tested this assumption by running PyCharm from the command line after calling conda activate foo, and it works. Of course, having to launch PyCharm from a specific conda environment is not great as I am stuck with this specific environment.

How could PyCharm be configured to automatically update the environment as conda activate does? Shouldn't it do it straight out of the box?

Upvotes: 5

Views: 6853

Answers (2)

Hima
Hima

Reputation: 12054

I fixed the issue by adding DLL to my < path_to_environment >/DLLs location

Upvotes: 5

user209974
user209974

Reputation: 1927

The issue seems to be solved by upgrading to the latest 4.6.7 version of conda. The relevant line from the release notes might be

  • revert conda prepending to PATH in cli main file on windows (#8307)

I am not sure why it affected PyCharm and not plain python in my case.

Upvotes: 1

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