Ok, here is the working version of my program. Thanks for all of the advice:
#!/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_number = int(month)
except ValueError:
for eachKey in month_dict.keys():
if month.lower() in eachKey:
month_number = month_dict[eachKey]
break
else:
month_number = 0
if month_number==0 or day=="" or year=="":
self.date = time.localtime()
else:
self.date = (int(year), month_number, 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 (as a number): ")
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())
--- On Wed, 8/6/08, wesley chun <[EMAIL PROTECTED]> wrote:
> From: wesley chun <[EMAIL PROTECTED]>
> Subject: Re: [Tutor] date formatter
> To: [EMAIL PROTECTED]
> Cc: tutor@python.org
> Date: Wednesday, August 6, 2008, 11:39 PM
> > try:
> > month = int(month)
> > except ValueError:
> > for eachKey in
> month_dict.keys():
> > if month.lower() in
> eachKey:
> > month =
> month_dict[eachKey]
> > else:
> > month =
> ""
> > :
> > 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
> > :
> > if month.lower() in eachKey:
> > AttributeError: 'int' object has no attribute
> 'lower'
> >
> > Any suggestions?
>
>
> chris,
>
> good 1st attempt. all the problems are in the code snippet
> above. you
> only have a few flaws in your program preventing it from
> working:
>
> a. you "wipe out" the originally entered month
> (by continually
> reassigning the month var)
>
> b. you don't break out of the inner for-loop when u
> find a match and
> end up wiping out the correct match
>
> c. the cause of the exception: the entry for May is a
> string and not a
> 1-item tuple. you need a trailing comma "," after
> "may" to make it a
> tuple. the reason why the error is triggered is because
> you set a
> blank to month for every non-match. so when it gets to may,
> it makes
> this comparison:
>
> >>> "" in "may"
> True
>
> because of this, it sets...
>
> month = month_dict["may"] # so month == 5
>
> so in the next loop iteration, your're trying to do...
>
> 5.lower() in eachKey
>
> which of course, fails. fix these problems, and you have a
> working solution!
>
> best of luck!
> -- wesley
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> "Python Web Development with Django", Addison
> Wesley, (c) 2008
> http://withdjango.com
>
> wesley.j.chun :: wescpy-at-gmail.com
> python training and technical consulting
> cyberweb.consulting : silicon valley, ca
> http://cyberwebconsulting.com
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