Class t.f.p.Filter(Pipe):

Part of twisted.flow.pipe View Source View In Hierarchy

flow equivalent to filter: Filter(function, source, ... )

Yield those elements from a source stage for which a function returns true. If the function is None, the identity function is assumed, that is, all items yielded that are false (zero or empty) are discarded.

For example: 
   def odd(val):
       if val % 2:
           return True

   def range():
       yield 1
       yield 2
       yield 3
       yield 4

   source = flow.Filter(odd,range)
   printFlow(source)

Split Table into Classes Show Methods in One Table

Line # Kind Name Docs
73 Method __init__ Undocumented
77 Method process process implemented by the pipe

Inherited from Pipe:

Line # Kind Name Docs
24 Method _yield executed during a yield statement by previous stage

Inherited from Stage (via Pipe):

Line # Kind Name Docs
170 Method __iter__ Undocumented
173 Method next return current result
Line # Kind Name Docs
73 Method __init__ Undocumented
170 Method __iter__ Undocumented
173 Method next return current result
77 Method process process implemented by the pipe
24 Method _yield executed during a yield statement by previous stage
def __init__(self, func, source, *trap): (source)
overrides twisted.flow.pipe.Pipe.__init__
Undocumented
def process(self, results, stop): (source)
overrides twisted.flow.pipe.Pipe.process

process implemented by the pipe

Take a set of possibly empty results and sets the member variables: results, stop, or failure appropriately
API Documentation for Twisted, generated by pydoctor at 2008-10-26 16:12:37.