how to convert a multiline string to an anonymous function?

Scott David Daniels Scott.Daniels at Acm.Org
Wed Apr 30 15:00:36 CEST 2008


Matimus wrote:
> On Apr 29, 3:39 pm, "Diez B. Roggisch" <de... at nospam.web.de> wrote:
>> Danny Shevitz schrieb:
>>> Simple question here: ...
>>> str = '''
>>> def f(state):
>>>   print state
>>>   return True
>>> '''
>>> but return an anonmyous version of it, a la 'return f' so I can assign it
>>> independently. The body is multiline so lambda doesn't work....
>> The "stupid" thing is that you can pass your own dictionary as globals
>> to exec. Then you can get a reference to the function under the name "f"
>> in the globals, and store that under whatever name you need....
>> Diez
> ...
Or, you can even  more simply do:
     text = '''
     def f(state):
         print state
         return True
     '''
     lcl = {}
     exec text in globals(), lcl
     and lcl will be a dictionary with a single item: {'f' : <function>}
     so you could return lcl.values()[0]

-Scott David Daniels
Scott.Daniels at Acm.Org



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