Filter out pycallgraph nodes

[gak]

No description provided.

[gak]

Author: gak

[gak]

Author: Alec Thomas alec@swapoff.org
I think a general callback filter would be the most elegant solution. Perhaps the following signature:

{{{
#!python
def filter(depth, module, thing):
return True
}}}

Then perhaps have some useful utility filters builtin:

{{{
#!python
import fnmatch

class GlobFilter(object):
def init(self, include=[], exclude=[]):
...

def __call__(self, depth, module, thing):
   # Match module.thing against the include/exclude glob lists
   ...

}}}

[gak]

Author: Alec Thomas alec@swapoff.org
Here's an example of a custom filter which subclasses the default !GlobbingFilter and prints as it traces:

{{{
#!python
import pycallgraph

class Filter(pycallgraph.GlobbingFilter):
def call(self, stack, module, cls, func, full_name):
if pycallgraph.GlobbingFilter.call(self, stack, module, cls, func, full_name):
print ' ' * len(stack) + full_name

pycallgraph.start_trace(filter=Filter(exclude=['pycallgraph.*']))

def foo():
print "foo()"

def bar():
foo()
foo()

bar()

pycallgraph.make_graph('test.png')
}}}

[gak]

Author: Alec Thomas alec@swapoff.org
Or a more basic trace:

{{{
#!python
def print_me(stack, module, cls, func, full_name):
print ' ' * len(stack) + full_name

pycallgraph.start_trace(filter=print_me)
}}}

[gak]

Author: gak