Function lookup using a directory.
andy.pevy at nokia.com
andy.pevy at nokia.com
Mon Jun 18 11:31:10 EDT 2001
Hi Guys
I am having trouble with the directory data type. What I want to
do is to set up a directory that I can use to parse a command entered by
the user, and have a directory return the name of a class to handle the
command. Like this :-
command_table = {'0': 'Help0',
'1': 'Help1',
'2': 'Help2',
'3': 'Help3' }
class Help0:
def run(self,which):
if len(which) == 1:
print 'Help no args'
else:
print 'Help args'
class Help1:
def run(self,which):
if len(which) == 1:
print 'Help1 no args'
else:
print 'Help1 args'
class Help2:
def run(self,which):
if len(which) == 1:
print 'Help2 no args'
else:
print 'Help2 args'
class Help3:
def run(self,which):
if len(which) == 1:
print 'Help3 no args'
else:
print 'Help3 args'
if __name__ == '__main__':
command = user_input()
try:
h = command_table[command[0]]
except:
print command[0]+' not found'
h.run() # Call the run method of the selected class.
So, a couple of questions please.....
Can I do this, I.E. have a class as a value in a dictionary
and if so, what would the correct declaration be.
Thanks.
Andy Pevy
A Very Beginner Pythoneer.
--
We were always told that a million monkeys typing for a million years
would eventually produce the works of Shakespeare. Now, thanks to the
Internet, we know this is not true.
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