Re: Unsupported operand type(s) for +: 'float' and 'tuple'

[Tim Chase]

On 06/10/2011 05:30 AM, Francesc Segura wrote:
Hello all, I'm new to this and I'm having problems on summing two
values at python.
I get the following error:

Traceback (most recent call last):
   File "C:\edge-bc (2).py", line 168, in<module>
     if (costGG<= cost + T0):
TypeError: unsupported operand type(s) for +: 'float' and 'tuple'

I'm working with networkx and my program is this one:
...
T0 = initCost*0,1

Here, you're setting T0 to the tuple "(initCost*0, 1)" == "(0, 
1)".  I think you mean to use a period instead of a comma.

You then try to add that to a float (cost), and Python doesn't 
like that.  I wouldn't either :)

-tkc


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