how to count lines in a file ?

[Paul Rubin]

bokr at oz.net (Bengt Richter) writes:
> write a handler for. A rack of event handlers might be specified
> much like __slots__, except a list of tuples instead of names,
> (could use a dict, but might want to specify piority order to
> put likely events first) e.g., (using a fictional container for
> standard platform event, perhaps extendable a la sys.modules):

Oh please no.  Python has too many magic variables already (__slots__,
__all__, and so forth).  These are used to do things that would
normally be done by adding statements to the language, e.g. __all__ is
what would normally be an export statement and __slots__ is what would
normally be variable declarations.  Somehow it's considered
unminimalistic to add statements to the language to do these necessary
things, so clumsy magic variables get added instaed.