in Spyder ModuleNotFoundError: No module named 'plotly'

Question

New to python. Not sure how to to add a module.

import plotly.express as px

Error:

ipdb> ModuleNotFoundError: No module named 'plotly'

What steps are need to have this module recognised?

Answer 1

What worked for me, both under Windows and under MacOSX , is using Anaconda for all Python apps. This post also advises to use Anaconda :
Python dependency hell: A compromise between virtualenv and global dependencies?

These are the steps I took.

Install Anaconda :
https://docs.anaconda.com/anaconda/user-guide/getting-started/
Under Windows , open the Anaconda cmd prompt from the Anaconda Navigator . Under MacOSX , just open the cmd prompt.
In the cmd prompt, install plotly with this command:
```
 conda install plotly
```
This installs plotly in the Anaconda environment.
Launch Spyder from the Anaconda Navigator . Always launch Spyder from the Anaconda Navigator , to make sure you're running the copy of Spyder from the Anaconda environment.
In a Python script, load plotly :
```
 import plotly as py
```

After that you should be good to go with plotly .