__imul__ does not work !

[Uwe Schmitt]

Hi, 

I tried to write a class which represents sets of natural numbers.
I wanted to implement A *= B by defining __imul__ as below:



	from Numeric import *


	class NaturalNumberSet(object):

		def __init__(self, orig=None, length=64):
			if orig:
			   length=max(orig)+1
			self.indices = zeros((length,),Int0)
			if orig:
			   put(self.indices, orig, 1)
			self.length=length

		def __imul__(self, other):

			ml = min(len(self.indices), len(other.indices))
			ha = self.indices[:ml]*other.indices[:ml] 
			self.indices = ha
			self.length=len(ha)
			return self





	a=NaturalNumberSet([1,2,5])
	b=NaturalNumberSet([1,2,5,7])

	b *= a
	b.__imul__(a)

	print b.indices
	print a.indices



But the "b*=a" results in

	Traceback (most recent call last):
	  File "bug2.py", line 30, in ?
	    b *= a
	TypeError: can't multiply sequence to non-int


If I outcomment that line, b.__imul__(a) works fine...

Is this a bug ??

Greetings, Uwe

-- 
Dr. rer. nat. Uwe Schmitt      Computer science is no more about Computers,
uwe.schmitt at num.uni-sb.de      than astronomy is about telescopes. (Dijkstra)
http://www.procoders.net