ImportError: cannot import name 'FileStorage'

[golharam]

Following the docs shown on https://pypi.org/project/wes-service/, I just installed via 'pip install wes-service' into a python 3.6 virtual env. When I run 'wes-server' I get the error:

$ wes-server
Traceback (most recent call last):
  File "/Users/golharr/workspace/ga4gh/wes-env/bin/wes-server", line 7, in <module>
    from wes_service.wes_service_main import main
  File "/Users/golharr/workspace/ga4gh/wes-env/lib/python3.6/site-packages/wes_service/wes_service_main.py", line 8, in <module>
    import connexion
  File "/Users/golharr/workspace/ga4gh/wes-env/lib/python3.6/site-packages/connexion/__init__.py", line 3, in <module>
    from .apis import AbstractAPI  # NOQA
  File "/Users/golharr/workspace/ga4gh/wes-env/lib/python3.6/site-packages/connexion/apis/__init__.py", line 1, in <module>
    from .abstract import AbstractAPI  # NOQA
  File "/Users/golharr/workspace/ga4gh/wes-env/lib/python3.6/site-packages/connexion/apis/abstract.py", line 14, in <module>
    from ..operation import Operation
  File "/Users/golharr/workspace/ga4gh/wes-env/lib/python3.6/site-packages/connexion/operation.py", line 7, in <module>
    from .decorators import validation
  File "/Users/golharr/workspace/ga4gh/wes-env/lib/python3.6/site-packages/connexion/decorators/validation.py", line 9, in <module>
    from werkzeug import FileStorage
ImportError: cannot import name 'FileStorage'

[golharam]

Happens in both Python 2.7 and Python 2.6 on Mac.

[golharam]

I have, for python 2.7:
connexion==1.4.2
Werkzeug==1.0.1

For Python 3.6:
connexion==1.4.2
Werkzeug==1.0.1

Referencing due to similar issue spec-first/connexion#1149

[golharam]

Looks like FileStorage in werkzeug moved to
from werkzeug.datastructures import FileStorage

This break connexion. But connexion 1.4.2 is very old.

[golharam]

setup.py requires specific version of connexion. This should probably get updated.

[tetron]

Yea, the short term fix would be to pin the version. If you are thinking about using this project somebody could probably bring it back up to speed.

[golharam]

I was hoping to test this out as a reference implementation. If this is not a reference implementation, what can I use this is easily to setup and test with? If this is a reference implementation, I'd be happy to help bring up to speed, but if its not used, then there is no point...

[mr-c]

This is the main implementation of WES for CWL based-runners, yes