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Asked: 2026-05-11T14:39:54+00:00

I have a bit of Python to connect to a database with a switch

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I have a bit of Python to connect to a database with a switch throw in for local versus live. 

    LOCAL_CONNECTION = {'server': '127.0.0.1', 'user': 'root', 'password': '', 'database': 'testing'}     LIVE_CONNECTION = {'server': '10.1.1.1', 'user': 'x', 'password': 'y', 'database': 'nottesting'}      if debug_mode:         connection_info = LOCAL_CONNECTION     else:         connnection_info = LIVE_CONNECTION     self.connection = MySQLdb.connect(host = connection_info['server'], user = connection_info['user'], passwd = connection_info['password'], db = connection_info['database'])

Works fine locally (Windows, Python 2.5) but live (Linux, Python 2.4) I’m getting:

UnboundLocalError: local variable 'connection_info' referenced before assignment

I see the same error even if I remove the if/ else and just assign connection info directly to the LIVE_CONNECTION value. If I hard-code the live connection values into the last line, it all works. Clearly I’m sleepy. What am I not seeing?

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1 Answer

  1. The second assignement is misspelled.

    You wrote connnection_info = LIVE_CONNECTION with 3 n’s.

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