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import importlib

import sys

import resource

NUM_VECTORS = 10**7

if len(sys.argv) == 2:

module_name = sys.argv[1].replace('.py', '')

module = importlib.import_module(module_name)

else:

print('Usage: {} <vector-module-to-test>'.format())

sys.exit(1)

fmt = 'Selected Vector2d type: {.__name__}.{.__name__}'

print(fmt.format(module, module.Vector2d))

mem_init = resource.getrusage(resource.RUSAGE_SELF).ru_maxrss

print('Creating {:,} Vector2d instances'.format(NUM_VECTORS))

vectors = [module.Vector2d(3.0, 4.0) for i in range(NUM_VECTORS)]

mem_final = resource.getrusage(resource.RUSAGE_SELF).ru_maxrss

print('Initial RAM usage: {:14,}'.format(mem_init))

print(' Final RAM usage: {:14,}'.format(mem_final))