[GitHub] JulieRossi opened a new issue #4934: flask-cache is unmaintained and raises an ImportError

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

JulieRossi opened a new issue #4934: flask-cache is unmaintained and raises an ImportError
URL: https://github.com/apache/incubator-superset/issues/4934
 
 
   Hello !
   I recently got an import error when init superset (see Traceback).
   I think the problem comes from the Flask-Cache library so I was thinking I should right an issue to them but the lib is not maintained anymore (https://github.com/thadeusb/flask-cache/issues/167).
   
   They say we should use Flask-Caching (https://github.com/sh4nks/flask-caching) instead.
   
   Would you consider changing the library ?
   
   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
   0.20.4 and 0.24.0 tested
   
   ### Expected results
   Should not raise any error
   
   ### Actual results
   An error is raised on init superset : 
   ```
   Traceback (most recent call last):
     File "/usr/local/lib/python3.5/dist-packages/gunicorn/arbiter.py", line 578, in spawn_worker
       worker.init_process()
     File "/usr/local/lib/python3.5/dist-packages/gunicorn/workers/base.py", line 126, in init_process
       self.load_wsgi()
     File "/usr/local/lib/python3.5/dist-packages/gunicorn/workers/base.py", line 135, in load_wsgi
       self.wsgi = self.app.wsgi()
     File "/usr/local/lib/python3.5/dist-packages/gunicorn/app/base.py", line 67, in wsgi
       self.callable = self.load()
     File "/usr/local/lib/python3.5/dist-packages/gunicorn/app/wsgiapp.py", line 65, in load
       return self.load_wsgiapp()
     File "/usr/local/lib/python3.5/dist-packages/gunicorn/app/wsgiapp.py", line 52, in load_wsgiapp
       return util.import_app(self.app_uri)
     File "/usr/local/lib/python3.5/dist-packages/gunicorn/util.py", line 352, in import_app
       __import__(module)
     File "/usr/local/lib/python3.5/dist-packages/superset/__init__.py", line 92, in <module>
       cache = utils.setup_cache(app, conf.get('CACHE_CONFIG'))
     File "/usr/local/lib/python3.5/dist-packages/superset/utils.py", line 625, in setup_cache
       return Cache(app, config=cache_config)
     File "/usr/local/lib/python3.5/dist-packages/flask_cache/__init__.py", line 121, in __init__
       self.init_app(app, config)
     File "/usr/local/lib/python3.5/dist-packages/flask_cache/__init__.py", line 156, in init_app
       from .jinja2ext import CacheExtension, JINJA_CACHE_ATTR_NAME
     File "/usr/local/lib/python3.5/dist-packages/flask_cache/jinja2ext.py", line 33, in <module>
       from flask.ext.cache import make_template_fragment_key
   ImportError: No module named 'flask.ext'
   ```
   
   ### Steps to reproduce
   
   
   

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