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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