Benchmark of get methods with python

dict_get_bench.py

from __future__ import print_function

a_dict = {x: str(x) for x in range(1000)}

def with_get():
    result1 = a_dict.get(-1, None)
    result2 = a_dict.get(900, None)

def with_exception():
    try:
        result1 = a_dict[-1]
    except KeyError:
        result1 = None
    try:
        result2 = a_dict[900]
    except KeyError:
        result2 = None

def with_in():
    result1 = a_dict[-1] if -1 in a_dict else None
    result2 = a_dict[900] if 900 in a_dict else None

if __name__ == '__main__':
    import timeit
    import sys
    
    using_get = timeit.Timer('with_get()', 'from  __main__ import with_get')
    using_exception = timeit.Timer('with_exception()', 'from  __main__ import with_exception')
    using_in = timeit.Timer('with_in()', 'from  __main__ import with_in')

    print(sys.version)
    print()
    print('with_get():      ', using_get.timeit())
    print('with_exception():', using_exception.timeit())
    print('with_in():       ', using_in.timeit())