TypeError: update() takes exactly 2 arguments (3 given)
I don't understand this, since I only gave update 2 arguments. If anyone could shed some light on this, I'd greatly appreciate it. Here's the code:
This is something fairly fundamental to Python programming, so you have to make sure that you understand how this works.
When you have a class with a method:
class Foo:
def bar(self, x):
print xAnd you call that method on an instance of the class:
f = Foo()
f.bar("abc")The instance, f, is automatically passed as the first argument to the function before any other arguments that are provided in the call. Therefore, when you declare methods in a class they must have a "self" parameter as the first parameter.
There's more to this than I've explained here so you should read a Python book or online manual.
Ciao, Gordon
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