python programming help

[rafaellasav at gmail.com]

On Sunday, December 8, 2013 6:32:31 PM UTC, rafae... at gmail.com wrote:
> On Sunday, December 8, 2013 6:27:34 PM UTC, bob gailer wrote:
> 
> > On 12/8/2013 12:59 PM, rafaellasav at gmail.com wrote:
> 
> > 
> 
> > > i have a dictionary with names and ages for each name. I want to write a function that takes in an age and returns the names of all the people who are that age.
> 
> > 
> 
> > > please help
> 
> > 
> 
> > Welcome to the python list. Thanks for posting a question.
> 
> > 
> 
> > 
> 
> > 
> 
> > If you were hoping for one of us to write the program for you ... well 
> 
> > 
> 
> > that's not what we do on this list.
> 
> > 
> 
> > 
> 
> > 
> 
> > Please post the code you have so far and tell us exactly where you need 
> 
> > 
> 
> > help.
> 
> > 
> 
> > 
> 
> > 
> 
> > Also tell us what version of Python, what OS, and what you use to write 
> 
> > 
> 
> > and run Python programs.
> 
> 
> 
> name = ['Alice', 'Bob', 'Cathy', 'Dan', 'Ed', 'Frank', 'Gary', 'Helen', 'Irene', 'Jack', 'Kelly', 'Larry']
> 
> age = [20, 21, 18, 18, 19, 20, 20, 19, 19, 19, 22, 19]
> 
> dic={}
> 
> def combine_lists(name,age):
> 
>     for i in range(len(name)):
> 
>         dic[name[i]]= age[i]
> 
> combine_lists(name,age)
> 
> print dic
> 
> 
> 
> def people(age):
> 
>     people=lambda age: [name for name in dic if dic[name]==age]
> 
> 
> 
> people(20)
> 
> 
> 
> 
> 
> 
> 
> 
> 
> this is the code i have so far(with the help of the first post ;p). i understand how a function and a dictionary works and what I'm asked to find. but i don't get the lambda age part. and this code doesn't give me any result

and I'm sorry but this is the first time i ask for help in a forum and i just didn't know how it works. I'm not looking for someone to do my homework i just need someone to help me with my code :)