profile_implicit.py

import os
import cProfile
from marshmallow import Schema

BRANCH = os.popen('git rev-parse --abbrev-ref HEAD').read().strip()

values = (1, True, '3')

class ImplicitSchema(Schema):
    class Meta:
        fields = ('a', 'b', 'c')

schema = ImplicitSchema()

def main(static):
    offset = 0 if static else 1
    for i in range(10000):
        result = schema.dump({
            'a': values[(i*offset + 0) % 3],
            'b': values[(i*offset + 1) % 3],
            'c': values[(i*offset + 2) % 3],
        })

def profile(static):
    filename = '{}-{}.prof'.format(
        BRANCH,
        'static' if static else 'changing',
    )
    cProfile.run('main({})'.format(static), filename)

for static in (True, False):
    profile(static)