[GitHub] JulieRossi opened a new issue #5006: ImportError: No module named 'flask.exthook'

[GitBox <gi...@apache.org>]

JulieRossi opened a new issue #5006: ImportError: No module named 'flask.exthook'
URL: https://github.com/apache/incubator-superset/issues/5006
 
 
   Hello !
   I ran into an error while running `superset db upgrade` : 
   ```
   File "/usr/local/bin/superset", line 9, in <module>
       from flask.exthook import ExtDeprecationWarning
   ImportError: No module named 'flask.exthook'
   ```
   For what I can see, superset uses (or can use) flask==1.0 (`https://github.com/apache/incubator-superset/blob/master/setup.py#L58`) that no longer has a `exthook` module (https://github.com/pallets/flask/releases/tag/1.0).
   This causes a ImportError on superset here : https://github.com/apache/incubator-superset/blob/master/superset/bin/superset#L9
   
   When I install flask==0.12.2 before I install superset I no longer have the Error.
   
   Maybe `flask<1.0.0` would work better? Or do you think I may be doing something wrong ?
   
   Make sure these boxes are checked before submitting your issue - thank you!
   
   - [x] I have checked the superset logs for python stacktraces and included it here as text if any
   - [x] I have reproduced the issue with at least the latest released version of superset
   - [x] I have checked the issue tracker for the same issue and I haven't found one similar
   
   
   ### Superset version
   0.25.2
   
   ### Expected results
   There should be no error
   
   ### Actual results
   ImportError is raised
   
   ### Steps to reproduce
   `pip install superset==0.25.2`
   (by the way, at this point we get a warning `flask-appbuilder 1.10.0 has requirement Flask<0.12.99,>=0.12.1, but you'll have flask 1.0 which is incompatible.`)
   `pip freeze`
   
   

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