Installation - No module named 'plotly.express'

[ItayKishon-Vayyar]

Hi,
I've tried installing dtale, via conda.
After this small issue, solved by installing networkx=2.5, I've encountered the following error:

ModuleNotFoundError: No module named 'plotly.express'

I understand there's been some change recently to plotly's express submodule, but I can't seem to fix this.

Installed versions:
Python 3.9.5
dtale 1.50.1
plotly 3.10.0

Thanks.

[aschonfeld]

@ItayKishon-Vayyar I was able to create a fresh conda environment w/ D-Tale installed:

conda create -n py39 python=3.9 anaconda
conda activate py39
conda install dtale -c conda-forge

Then I opened a python console and ran the following commands:

import dtale
import pandas as pd
dtale.show(pd.DataFrame([1,2,3,4,5]))

I had no issues bringing up the app. Is there some operation you're trying to perform that brings up the plotly.express error? I'd also suggest maybe reinstalling plotly

Let me know how it turns out. Good luck

[ItayKishon-Vayyar]

@aschonfeld,
Indeed, a fresh installation (python=3.9, anaconda) works.

I've noticed that with this installation, plotly 5.1.0 is installed, whereas my original environment had plotly 3.10.0 for some reason. It seems that plotly 4 had a major change with the plotly.express submodule (see here).

Perhaps plotly 5 should be added as a module requirement?

Thanks.

[aschonfeld]

Thabks @ItayKishon-Vayyar, i can look into updating the dependencies to be pinned to plotly 5. Do you mind tossing your ⭐️ on the repo? 🙏

[aschonfeld]

So the current plotly versions being used are:

plotly==4.14.3; python_version < '3.6'
plotly>=4.9.0; python_version >= '3.6'

I'm going to update this to:

plotly==4.14.3; python_version < '3.6'
plotly>=5.0.0; python_version >= '3.6'

[ItayKishon-Vayyar]

That sounds a bit strange - as you can see in my first post, I installed the latest dtale version (1.50.1), yet ended up with plotly 3.10.0 (with Python 3.9.5). So perhaps something wasn't configured correctly with the requirements?
Also, there was this issue with networkx.

Thanks for looking into this. I've started playing with your project, and it seems very cool.

[aschonfeld]

Ahhhh, looks like conda doesn't follow the version pinning used in pip. I'm going to update the conda build recipe to follow the version restrictions of requirements.txt

I may need to drop python2.7. I can't find support for using different python versions on a dependency like I did in requirements.txt

[aschonfeld]

@ItayKishon-Vayyar try installing 1.50.1 of the conda version now. I updated the recipe to have plotly >=4.14.3

[aschonfeld]

Updated in v1.51.0