Why am I getting error message as "ModuleNotFoundError: No module named 'plotly.express" while it was working before?

Question

I'm having this bizarre experience; I'm re-running a code to plot a geographical graph using Plotly and use

import plotly.express as px

but it gives me the error message saying that "ModuleNotFoundError: No module named 'plotly.express'". I can confirm that plotly is installed, and most importantly it was working until last night. How come its suddenly not finding the module name while it was working until last night? Has something been changed?

Any feedback much appreciated.

Answer 1

Apparently, it turned out that upgrading plotly version solved the problem. To upgrade plotly, I simply run the following codes to check the plotly version.

import plotly
plotly.__version__

That gave me the output of version of plotly as '5.11.0'. Then I upgraded the plotly version to '5.11.0' by writing the following code:

pip install plotly==5.11.0