generating method names 'dynamically'

[Michael Spencer]

Daniel Nogradi wrote:
...
> --------- database content -----------
> 
> Alice 25
> Bob  24
> 
> --------- program1.py -------------
> 
> class klass:
...
> 
> inst = klass()
> 
> --------- program2.py -----------
> 
> import program1
> 
> # The code in klass above should be such that the following
> # line should print 'Hello my name is Bob and I'm 24.'
> program1.inst.Bob()
> 
> # The code in klass above should be such that the following
> # line should print 'Hello my name is Alice and I'm 25.'
> program1.inst.Alice()
> 
> # The code in klass above should be such that the following
> # line should print 'There was an error.'
> program1.inst.John()
> 
...

Here you go:

  >>> database = {
  ...     "Alice": 24,
  ...     "Bob":25}
  ...
  >>> class Lookup(object):
  ...     def __catcher(self, name):
  ...         try:
  ...             print "Hello my name is %s and I'm %s" % (name, database[name])
  ...         except KeyError:
  ...             print "There was an error"
  ...     def __getattr__(self, attr):
  ...         return lambda:self.__catcher(attr)
  ...
  >>> inst = Lookup()
  >>> inst.Alice()
  Hello my name is Alice and I'm 24
  >>> inst.Bob()
  Hello my name is Bob and I'm 25
  >>> inst.John()
  There was an error
  >>>

HTH, Michael