New submission from JOMO WILLACY <jomo_will...@hotmail.com>:
I am using Python 3.5 with Django and the Python web server and Apache 2.2 web server. I am querying the database for a "drug_name" and an "insurer" - # and minimum "price". Here is what works and what does not work Valid Drug Name Valid Insurer Works Python web Server Apache Epipen 2 Yes Yes Yes Lisenopril 2 Yes Yes Yes Naftin 7 Yes Yes Yes Invalid Drug Name Insurer Works Python Server Apache Licenopril Yes Yes Yes Licenopril 2 Yes No In the last case up above it traps and the server logs at /var/www/logs/error.log say "Unhandled Exception". This is where it traps ans what it says : Cannot convert str to float : 'None' File "/usr/local/lib64/python3.5/site-packages/django/db/models/fields/__init__.py" line 1747, in get_prep_value return float( output_value ) I then went into the file where the trap occurred and I added a try catch like the function after line 1747 and the problem went away. The trap only happens under Apache. If you wish to reproduce this problem then go to these links and try the input listed above : Python Web Server : http://34.200.216.166:8000/health_insurer2/minimum_price_for_drug/ Apache Web Server : http://34.200.216.166/health_insurer2/minimum_price_for_drug/ As an aid I have left debug=on in django so you will be able to trace the trap in the browser The file that I am running is views.py I am running Amazon AMI Linux in the cloud. Sincerely Yours, Jomo Willacy ---------- messages: 346476 nosy: jomo_will...@hotmail.com priority: normal severity: normal status: open title: Trap in Python 3.5 under Apache 2.2 when Django database returns 'None'. type: crash versions: Python 3.5 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue37397> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
