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You run uwsgi --http :5000 --module app:app but get an error saying the module 'app' cannot be found. What is the most likely cause?

medium📝 Debug Q14 of 15
Flask - Deployment
You run uwsgi --http :5000 --module app:app but get an error saying the module 'app' cannot be found. What is the most likely cause?
AThe app.py file is missing or not in the current directory
BThe uWSGI command requires the --wsgi-file option instead of --module
CThe port 5000 is already in use by another process
DThe Flask app is not installed properly
Step-by-Step Solution
Solution:
  1. Step 1: Understand module loading in uWSGI

    Using --module expects a Python module named 'app' with an 'app' variable inside.
  2. Step 2: Check file presence and location

    If 'app.py' is missing or not in the current directory, uWSGI cannot find the module.
  3. Final Answer:

    The app.py file is missing or not in the current directory -> Option A
  4. Quick Check:

    Missing app.py causes module not found error [OK]
Quick Trick: Check app.py file exists in current folder [OK]
Common Mistakes:
MISTAKES
  • Confusing --module with --wsgi-file
  • Assuming port conflicts cause module errors
  • Ignoring file location issues

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