Title: Signature.html
In some code I'm writing, I ran into a problem with the variable
updown. I want it to be global. I cut down the code to near the
essentials. I set a variable abc, and it seems to be happy with an
almost identical use of updown. Where's this going wrong? Although
there's an implication of a yyyy/mm/dd date, I omitted any check, so
just enter a number.
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, "in morris", updown
def sync_high2low_files():
# put last date first to avoid collisons when actually rewrite
print "hiho"
morris(); print "OK"
return
abc = 200
updown = +1 # natural order
# keyboard operation/command input loop
keyop = 999
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",updown
print "abc", abc
morris()
sync_low2high_files()
print "bottomed out"
Results:
Enter operation number (h for help): 1
Enter new start date (yyyy/mm/dd): 111
updown 1
abc 200
200 in morris 1
Traceback (most recent call last):
File
"C:\Sandia_Meteors\Improved_Sentinel\Sentinel_Playground\Utility_Dev\debug.py",
line 39, in ?
sync_low2high_files()
File
"C:\Sandia_Meteors\Improved_Sentinel\Sentinel_Playground\Utility_Dev\SU_DateTimeAdjust.py",
line 35, in sync_low2high_files
print updown
UnboundLocalError: local variable 'updown' referenced before assignment
--
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/>
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