Re: [Tutor] Local Unbound Mystery

[Wayne Watson]

Title: Signature.html

Yes, I noticed that it does not seem to correspond to the actual code. The "print updown" line is not to be seen and the line # it points to seems erroneous. Line 35 is the "Date OK" remark. I'm going to bring down IDLE. To see if that helps. Well, it made a difference, and now program and output are in agreement. It seems like some of the code I chopped out of the original program was still active. I reworked the original to get this. Here's what I get now. import os, os.path, sys # The following import is necessary for Python to use the datetime # strftime method. See comments with use of that method below. from datetime import datetime, timedelta import re import time def morris():     print abc def sync_low2high_files():     # restore order to natural low to high state     print updown     if updown == -1:         # Sort low to high         dat_files.sort(reverse = False)         txt_files.sort(reverse = False)         rename_files.sort(reverse = False)         updown = +1     return updown = +1 while keyop <> 0:     print     keyin = raw_input("Enter operation number (h for help): ")     keyop = int(keyin)     # Perform commands     if (keyop == 1): # shift starting dates of files to new date         print         start_date = raw_input( "Enter new start date (yyyy/mm/dd): ")         # Date OK. Assemble date for file name         print "updown in loop",updown         sync_low2high_files()     print "bottomed out" Results: Enter operation number (h for help): 1 Enter new start date (yyyy/mm/dd): 111 updown in loop 1 Traceback (most recent call last):   File "C:/Sandia_Meteors/Improved_Sentinel/Sentinel_Playground/Utility_Dev/debug.py", line 35, in ?     sync_low2high_files()   File "C:/Sandia_Meteors/Improved_Sentinel/Sentinel_Playground/Utility_Dev/debug.py", line 13, in sync_low2high_files     print updown UnboundLocalError: local variable 'updown' referenced before assignment ... http://effbot.org/pyfaq/how-do-you-set-a-global-variable-in-a-function.htm Kent -- Wayne Watson (Watson Adventures, Prop., Nevada City, CA) (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet "Though no one can go back and make a brand new start, ANYONE can start from now and make a brand new end." -- Anonymous Web Page: <www.speckledwithstars.net/>

_______________________________________________
Tutor maillist  -  Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor