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There are two problems here:

1. You forgot to actually invoke GetRandom.ranNumber. Add () after it to do this:

   bnum = b.ranNumber()
   

2. You need to make GetRandom.ranNumber accept the self argument that is passed implicitly when you invoke the method:

   def ranNumber(self):
    return random.random()
   

Once you address these issues, the code works as expected:

>>> import random
>>> class GetRandom:
... def __init__(self):
... self.data = ""
... def ranNumber(self):
... return random.random()
...
>>> b = GetRandom()
>>> bnum = b.ranNumber()
>>> print bnum
0.819458844177
>>>

There are two problems here:

1. You forgot to actually invoke GetRandom.ranNumber. Add () after it to do this:

   bnum = b.ranNumber()
   

2. You need to make GetRandom.ranNumber accept the self argument that is passed implicitly when you invoke the method:

   def ranNumber(self):
    return random.random()
   

Once you address these issues, the code works as expected:

>>> import random
>>> class GetRandom:
... def __init__(self):
... self.data = ""
... def ranNumber(self):
... return random.random()
...
>>> b = GetRandom()
>>> bnum = b.ranNumber()
>>> print bnum
0.819458844177
>>>

There are two problems here:

1. You forgot to invoke GetRandom.ranNumber. Add () after it to do this:

   bnum = b.ranNumber()
   

2. You forgot to make GetRandom.ranNumber accept the self argument that is passed implicitly when you invoke the method. You need to define it like so:

   def ranNumber(self):
    return random.random()
   

Once you fix these two problems, the code works fine:

>>> import random
>>> class GetRandom:
... def __init__(self):
... self.data = ""
... def ranNumber(self):
... return random.random()
...
>>> b = GetRandom()
>>> bnum = b.ranNumber()
>>> print bnum
0.819458844177
>>>

There are two problems here:

1. You forgot to actually invoke GetRandom.ranNumber. Add () after it to do this:

   bnum = b.ranNumber()
   

2. You need to make GetRandom.ranNumber accept the self argument that is passed implicitly when you invoke the method:

   def ranNumber(self):
    return random.random()
   

Once you address these issues, the code works as expected:

>>> import random
>>> class GetRandom:
... def __init__(self):
... self.data = ""
... def ranNumber(self):
... return random.random()
...
>>> b = GetRandom()
>>> bnum = b.ranNumber()
>>> print bnum
0.819458844177
>>>