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'''
Task Coach - Your friendly task manager
Copyright (C) 2004-2014 Task Coach developers <developers@taskcoach.org>
Task Coach is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Task Coach is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
'''
import sys
def log_call(traceback_depth):
''' Decorator for function calls that prints the function name,
arguments and result to stdout. Usage:
@log_call(traceback_depth)
def function(arg):
...
'''
# Import here instead of at the module level to prevent unnecessary
# inclusion of the inspect module when packaging the application:
import inspect
def outer(func):
def inner(*args, **kwargs):
result = func(*args, **kwargs)
write = sys.stdout.write
for frame in inspect.stack(context=2)[traceback_depth:0:-1]:
write(format_traceback(frame))
write('%s\n'%signature(func, args, kwargs, result))
write('===\n')
return result
return inner
return outer
def time_call(func):
''' Decorator for function calls that times the call. '''
import time
def inner(*args, **kwargs):
start = time.time()
result = func(*args, **kwargs)
stop = time.time()
sys.stdout.write('%s took %f seconds\n'%\
(signature(func, args, kwargs, result), stop-start))
return result
return inner
def profile_call(func):
''' Docorator for profiling a specific function. I'm not sure what
happens if you decorate a recursive function... '''
import hotshot
def inner(*args, **kwargs):
profiler = hotshot.Profile('.profile')
return profiler.runcall(func, *args, **kwargs)
return inner
def signature(func, args, kwargs, result):
func = func.__name__
result = unicode(result)
try:
return '%s(%s, %s) -> %s'%(func, unicode(args), unicode(kwargs), result)
except:
return '%s(...) -> %s'%(func, result) # pylint: disable=W0702
def format_traceback(frame):
result = []
filename, lineno, caller, context = frame[1:5]
result.append(' File "%s", line %s, in %s'%(filename, lineno, caller))
for line in context:
result.append(line[:-1])
return '\n'.join(result) + '\n'
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