def main():
""" Method for running an empty application.
Customize the builtin __import__ module to get the number of calls.
"""
import __builtin__,sys
import time
global count
global import_time, last_time, import_times
count = 0
import_time = 0
last_time = time.time()
start_time = last_time
import_times = {}
# Customize builtin __import__ module
base_import = __builtin__.__import__
def my_import(name, *args):
global count
global import_time, last_time, import_times
count += 1
module = base_import(name, *args)
this_time = time.time()
if import_times.has_key(name):
import_times[name] += this_time-last_time
else:
import_times[name] = this_time-last_time
import_time += this_time-last_time
last_time = time.time()
return module
__builtin__.__import__ = my_import
# Use a non-modal UI to make opening and closing the UI, non-interactive.
# I have to import 'enthought' to get the namespace loaded. Not sure why,
# probably setuptools related
import enthought
from enthought.block_canvas.app.block_application import BlockApplication
d = BlockApplication(code = '')
d.edit_traits(kind='nonmodal')
print 'Number of import calls for an empty application = %d' % count
print 'Unique modules imported = %d' % len(import_times)
print 'Total time importing = %fs (%f%%)' % (import_time, import_time/(time.time() - start_time))
def sort_times(left, right):
return cmp(right[1], left[1])
items = import_times.items()
items.sort(sort_times)
print 'top 10 imports in total time'
for item in items[0:10]:
print ' %s = %f' % (item[0], item[1])
sys.exit(0)
