Calling function from string name within object

Question

I have the following two classes:

class A(object):
   def caller(self,name):
      # want to invoke call() here when name="call"

class B(A):
   def call(self):
      print("hello")

Given the following:

x= B()
x.caller("call") # I want to have caller() invoke call() on the name.

I don't want to check the value of name I want it to automatically invoke the the given string as a function on self.

Kenji Noguchi · Accepted Answer · 2016-12-09 02:41:19Z

2

Use __getattribute__

class A(object):
   def caller(self,name):
      self.__getattribute__(name)()

class B(A):
   def call(self):
      print("hello")

x= B()
x.caller("call")

Output

hello

answered Dec 9, 2016 at 2:41

Kenji Noguchi

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1 Comment

Dan D. Over a year ago

Why not getattr(self, name)()?

Randy Arguelles · Accepted Answer · 2016-12-09 02:50:23Z

1

can also use eval

class A(object):
   def caller(self,name):
      eval('self.%s()' % name)


class B(A):
   def call(self):
      print("hello")


x= B()
x.caller("call")

output

hello [Finished in 0.6s]

answered Dec 9, 2016 at 2:50

Randy Arguelles

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1 Comment

MarMan29 Over a year ago

Hi Randy is this faster than the above?

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