Problems working with Django 3.2.5

[shawnmjones]

I installed Wooey with

• Django 3.2.5
• celery 4.4.7

I started Wooey and celery using the commands from the documentation.

When trying to run the testscript.py from the documentation, celery issues this error:

[2021-07-10 16:06:59,996: ERROR/ForkPoolWorker-2] Task wooey.tasks.submit_script[103166dc-3ced-4495-93ba-85e6dfdda380] raised unexpected: SuspiciousFileOperation("Could not derive file name from ''")
Traceback (most recent call last):
  File "/Users/smj/.virtualenvs/wooey-raintale/lib/python3.8/site-packages/celery/app/trace.py", line 412, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/Users/smj/.virtualenvs/wooey-raintale/lib/python3.8/site-packages/celery/app/trace.py", line 704, in __protected_call__
    return self.run(*args, **kwargs)
  File "/Users/smj/.virtualenvs/wooey-raintale/lib/python3.8/site-packages/wooey/tasks.py", line 132, in submit_script
    print("job.output_path: {}".format(job.output_path))
  File "/Users/smj/.virtualenvs/wooey-raintale/lib/python3.8/site-packages/wooey/models/core.py", line 229, in output_path
    get_valid_filename(self.user.username if self.user is not None else ''),
  File "/Users/smj/.virtualenvs/wooey-raintale/lib/python3.8/site-packages/django/utils/functional.py", line 228, in wrapper
    return func(*args, **kwargs)
  File "/Users/smj/.virtualenvs/wooey-raintale/lib/python3.8/site-packages/django/utils/text.py", line 235, in get_valid_filename
    raise SuspiciousFileOperation("Could not derive file name from '%s'" % name)
django.core.exceptions.SuspiciousFileOperation: Could not derive file name from ''

If I downgrade Django to 3.1.8 as mentioned on Stack Overflow, then this problem does not occur.

[Chris7]

Thanks for the report. Could you provide your settings.py/pip freeze, and the script you are using? I just some tests locally with 3.2.5 but had no issues.

[shawnmjones]

Thanks for getting back to me so quickly. I had to put together a MWE to make sure we nailed this down. I am running this on macOS 11.3, but my colleague first encountered this issue on her Ubuntu machine. I am running Python 3.9.2.

The output of pip freeze

amqp==2.6.1
asgiref==3.4.1
billiard==3.6.4.0
celery==4.4.7
clinto==0.4.0
Django==3.2.5
django-autoslug==1.9.8
django-celery-results==2.0.1
django-storages==1.11.1
jsonfield==2.1.1
kombu==4.6.11
pytz==2021.1
six==1.16.0
sqlparse==0.4.1
vine==1.3.0
wooey==0.12.0

The script I am using (the same from the documentation)

import argparse
import sys

parser = argparse.ArgumentParser(description="Find the sum of all the numbers below a certain number.")
parser.add_argument('--below', help='The number to find the sum of numbers below.', type=int, default=1000)

def main():
    args = parser.parse_args()
    s = sum((i for i in range(args.below)))
    print("Sum =", s)
    return 0

if __name__ == "__main__":
    sys.exit(main())

Full Celery Log

celery@tauntaun.lan v4.4.7 (cliffs)

macOS-11.3-x86_64-i386-64bit 2021-07-22 15:52:02

[config]
.> app:         ProjectName:0x10c488eb0
.> transport:   filesystem://localhost//
.> results:
.> concurrency: 1 (prefork)
.> task events: OFF (enable -E to monitor tasks in this worker)

[queues]
.> celery           exchange=celery(direct) key=celery

[tasks]
  . ProjectName.wooey_celery_app.debug_task
  . wooey.tasks.cleanup_dead_jobs
  . wooey.tasks.cleanup_wooey_jobs
  . wooey.tasks.submit_script

[2021-07-22 15:52:02,231: INFO/Beat] beat: Starting...
[2021-07-22 15:52:02,234: INFO/MainProcess] Connected to filesystem://localhost//
[2021-07-22 15:52:02,245: WARNING/MainProcess] /Users/smj/.virtualenvs/testing-wooey-django-issue/lib/python3.9/site-packages/celery/fixups/django.py:205: UserWarning: Using settings.DEBUG leads to a memory
            leak, never use this setting in production environments!
  warnings.warn('''Using settings.DEBUG leads to a memory
[2021-07-22 15:52:02,245: INFO/MainProcess] celery@tauntaun.lan ready.
[2021-07-22 15:53:59,651: INFO/MainProcess] Received task: wooey.tasks.submit_script[583928a1-0a26-40b2-867a-69b59974da66]
[2021-07-22 15:53:59,680: ERROR/ForkPoolWorker-2] Task wooey.tasks.submit_script[583928a1-0a26-40b2-867a-69b59974da66] raised unexpected: SuspiciousFileOperation("Could not derive file name from ''")
Traceback (most recent call last):
  File "/Users/smj/.virtualenvs/testing-wooey-django-issue/lib/python3.9/site-packages/celery/app/trace.py", line 412, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/Users/smj/.virtualenvs/testing-wooey-django-issue/lib/python3.9/site-packages/celery/app/trace.py", line 704, in __protected_call__
    return self.run(*args, **kwargs)
  File "/Users/smj/.virtualenvs/testing-wooey-django-issue/lib/python3.9/site-packages/wooey/tasks.py", line 120, in submit_script
    cwd = job.get_output_path()
  File "/Users/smj/.virtualenvs/testing-wooey-django-issue/lib/python3.9/site-packages/wooey/models/core.py", line 229, in get_output_path
    path = self.output_path
  File "/Users/smj/.virtualenvs/testing-wooey-django-issue/lib/python3.9/site-packages/wooey/models/core.py", line 224, in output_path
    get_valid_filename(self.user.username if self.user is not None else ''),
  File "/Users/smj/.virtualenvs/testing-wooey-django-issue/lib/python3.9/site-packages/django/utils/functional.py", line 228, in wrapper
    return func(*args, **kwargs)
  File "/Users/smj/.virtualenvs/testing-wooey-django-issue/lib/python3.9/site-packages/django/utils/text.py", line 235, in get_valid_filename
    raise SuspiciousFileOperation("Could not derive file name from '%s'" % name)
django.core.exceptions.SuspiciousFileOperation: Could not derive file name from ''

[Chris7]

I managed to fall into this same scenario, but it was due to an error on my end where the celery configuration was not being picked up.

Do you have a celeryconfig file? I'm not sure how you are configured atm due to not having your user_settings.py (or wherever your settings.py for Django is coming from)

[Chris7]

Alright, I think I know what is up. You are using an anonymous user and there's a change in Django where it won't let '' go through anymore. I have a fix-a-lot-of-stuff MR #337 that addresses this.

[shawnmjones]

Thanks for tracing this. I just verified that it does not happen to logged-in users.

[Chris7]

Thanks, closing this as fixed in master. Should be available in the next minor release.