Optional typecheck

[Gregory Petrosyan]

Hello all! Please enlighten me about optional typecheck:

1) Will it be available in Python 2.5?
2) Will it support things like

def f(a: int | float)

3) Will it support interface checking like

def g(a: BookInterface)

or even mix like

def k(a: file | BookInterface)

4) Will it support things like

def t(*args: T1 | T2, **kwds: T1 | T3)

[DH]

Gregory Petrosyan wrote:

Hello all! Please enlighten me about optional typecheck:

1) Will it be available in Python 2.5?
2) Will it support things like

def f(a: int | float)

3) Will it support interface checking like

def g(a: BookInterface)

or even mix like

def k(a: file | BookInterface)

4) Will it support things like

def t(*args: T1 | T2, **kwds: T1 | T3)

No, not til python 3.0, which is years off.
For now you can use:
http://www.ilowe.net/software/typecheck/
Or if you want static type checking with it speed boost instead of
typechecking at runtime, there are lots of other options too.
shedskin, pyrex, scipy.weave, boo

[Gregory Petrosyan]

Btw, why not in 2.x?

Thanks for link, nice module. But I prefer built-in solution, that I
can use in any piece of python code. So, I'll wait for version of
Python that supports it.