ModuleNotFoundError: No module named 'pytz' when following demo instructions.

[gaurav]

I tried to follow the instructions at https://atramhasis.readthedocs.io/en/latest/demo.html with Python 3.9, I ran into the following errors both on running dump_rdf development.ini and on running pserve development.ini:

Traceback (most recent call last):
  File "/Users/gaurav/Development/opensource/atramhasis/venv/bin/dump_rdf", line 8, in <module>
    sys.exit(main())
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/atramhasis/scripts/dump_rdf.py", line 49, in main
    env = bootstrap(config_uri)
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/pyramid/paster.py", line 117, in bootstrap
    app = get_app(config_uri, options=options)
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/pyramid/paster.py", line 30, in get_app
    return loader.get_wsgi_app(name, options)
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/plaster_pastedeploy/__init__.py", line 111, in get_wsgi_app
    return loadapp(
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/paste/deploy/loadwsgi.py", line 248, in loadapp
    return loadobj(APP, uri, name=name, **kw)
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/paste/deploy/loadwsgi.py", line 273, in loadobj
    return context.create()
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/paste/deploy/loadwsgi.py", line 741, in create
    return self.object_type.invoke(self)
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/paste/deploy/loadwsgi.py", line 138, in invoke
    return fix_call(context.object, context.global_conf, **context.local_conf)
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/paste/deploy/util.py", line 61, in fix_call
    val = callable(*args, **kw)
  File "/Users/gaurav/Development/opensource/atramhasis/atramhasis_demo/atramhasis_demo/__init__.py", line 38, in main
    config.include("atramhasis")
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/pyramid/config/__init__.py", line 666, in include
    c(configurator)
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/atramhasis/__init__.py", line 24, in includeme
    config.scan()
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/pyramid/config/__init__.py", line 880, in scan
    scanner.scan(
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/venusian/__init__.py", line 220, in scan
    __import__(modname)
  File "/Users/gaurav/Development/opensource/atramhasis/venv/lib/python3.9/site-packages/atramhasis/scripts/delete_scheme.py", line 7, in <module>
    from pytz import timezone
ModuleNotFoundError: No module named 'pytz'

On installing this package manually using pip install pytz, both those commands work without any problem. I'm guessing pytz has been accidentally left out of a requirements file somewhere?

[koenedaele]

Last time I edited the demo instructions I had no issues (Ubuntu Linux). I just checked and pytz is present in that venv. Is it possible you're using MacOSX (based on the home dir locations) and this issue is OS related?

[koenedaele]

pytz should come installed with Babel, but apparently it isn't. There's actually no reason for pytz to be in that delete_scheme script, so it can be removed there. It does have a use in the create_sitemap script, where it seems we've hardcoded the timezone to ours, so that could be done better.

[koenedaele]

Pytz is no longer needed anywhere.