On Wed, Aug 6, 2008 at 11:01 PM, Christopher Spears
<[EMAIL PROTECTED]> wrote:
> Hey,
>
> I'm working on a problem out of Core Python Programming (2nd Edition).
> Basically, I'm creating a class that formats dates. Here is what I have so
> far:
>
> #!/usr/bin/python
>
> import time
>
> class date_format(object):
> def __init__(self, month, day, year):
> month_dict = {("jan","january") : 1,
> ("feb","february") :2,
> ("mar", "march") : 3,
> ("apr", "april") : 4,
> ("may") : 5,
> ("jun", "june") : 6,
> ("jul", "july") : 7,
> ("aug", "august") : 8,
> ("sep", "september") : 9,
> ("oct", "october"): 10,
> ("nov", "november"): 11,
> ("dec", "december"): 12
> }
> try:
> month = int(month)
> except ValueError:
> for eachKey in month_dict.keys():
> if month.lower() in eachKey:
> month = month_dict[eachKey]
> else:
> month = ""
> if month=="" or day=="" or year=="":
> self.date = time.localtime()
> else:
> self.date = (int(year), month, int(day), 0, 0, 0, 0,
> 1, -1)
>
> def display(self, format_indicator = None):
> if format_indicator == 'MDY':
> print time.strftime("%m/%d/%y",self.date)
> elif format_indicator == 'MDYY':
> print time.strftime("%m/%d/%Y",self.date)
> elif format_indicator == 'DMY':
> print time.strftime("%d/%m/%y",self.date)
> elif format_indicator == 'DMYY':
> print time.strftime("%d/%m/%Y",self.date)
> elif format_indicator == 'MODYY':
> print time.strftime("%b %d, %Y",self.date)
> else:
> print time.strftime("%a %b %d %Y",self.date)
>
>
> if __name__ == "__main__":
> print "Welcome to the Date Formatter!"
> month = raw_input("Please enter a month: ")
> day = raw_input("Please enter a day: ")
> year = raw_input("Please enter a year: ")
> date_obj = date_format(month, day, year)
> format_indicator = raw_input("Enter a format indicator: ")
> date_obj.display(format_indicator.upper())
>
> I am having trouble dealing with the case where the user actually types in a
> month's name instead of the number:
> [EMAIL PROTECTED] ./chap13 180> python date_format_v01.py
>
> Welcome to the Date Formatter!
> Please enter a month (as a number): Oct
> Please enter a day: 31
> Please enter a year: 1976
> Traceback (most recent call last):
> File "date_format_v01.py", line 53, in ?
> date_obj = date_format(month, day, year)
> File "date_format_v01.py", line 24, in __init__
> if month.lower() in eachKey:
> AttributeError: 'int' object has no attribute 'lower'
>
> Any suggestions?
> -Chris
wrap the call to month.lower() in a try/except block.
try:
if month.lower() .....
except AttributeError:
process this as a string instead of a number....
--
Stand Fast,
tjg. [Timothy Grant]
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