CODEWITHSUNDEEP
pythonherokuflaskhosting
dimos
dimos

Reputation: 147

heroku hosting apython flask application error

i have recently deployed my python flask app to heroku but the following error occurs:

2016-07-29T17:32:00.145010+00:00 heroku[web.1]: State changed from crashed to starting
2016-07-29T17:32:11.162187+00:00 heroku[web.1]: Starting process with command `gunicorn myapp:app --log-file=-`
2016-07-29T17:32:13.548294+00:00 heroku[web.1]: Process exited with status 3
2016-07-29T17:32:13.448537+00:00 app[web.1]: [2016-07-29 17:32:13 +0000] [3] [INFO] Starting gunicorn 19.6.0
2016-07-29T17:32:13.449154+00:00 app[web.1]: [2016-07-29 17:32:13 +0000] [3] [INFO] Listening at: http://0.0.0.0:57535 (3)
2016-07-29T17:32:13.456988+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/gunicorn/app/base.py", line 67, in wsgi
2016-07-29T17:32:13.456990+00:00 app[web.1]:     return self.load_wsgiapp()
2016-07-29T17:32:13.456993+00:00 app[web.1]:   File "/app/myapp.py", line 71
2016-07-29T17:32:13.456994+00:00 app[web.1]:     data[i]={**a[i],**b,**c,**d,**e}
2016-07-29T17:32:13.563973+00:00 heroku[web.1]: State changed from starting to crashed
2016-07-29T17:32:14.847126+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=obscure-plateau-26852.herokuapp.com request_id=820cdbd3-d478-434b-be65-06f959ca2798 fwd="79.167.50.52" dyno= connect= service= status=503 bytes=
2016-07-29T17:32:14.370705+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=obscure-plateau-26852.herokuapp.com request_id=48a7f184-053b-4ba9-9833-a5e27df61867 fwd="79.167.50.52" dyno= connect= service= status=503 bytes=

i have tried changing the default ports etc. but the same error occurs.

Any ideas?

Upvotes: 0

Views: 395

Answers (1)

Withnail
Withnail

Reputation: 3178

Well, the answer is in the traceback. Error code H10 means the app crashed when Gunicorn tried to load it onto the dyno. There's an error at line 71 of your myapp.py file, the data[i]={**a[i],**b,**c,**d,**e} line. You may need to show the rest of your file to debug that.

Upvotes: 1

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