Created
February 29, 2016 08:23
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""" Test the speed of various string concatenation methods """ | |
import timeit | |
def not_join(size = (40,40)): | |
blank_dict = {} | |
output = '' | |
for y in range(size[1]): | |
if y>0: | |
output += '\n' | |
for x in range(size[0]): | |
output += blank_dict.get((x,y), '.') | |
return output | |
def using_join_poorly(size = (40,40)): | |
blank_dict = {} | |
output = '' | |
for y in range(size[1]): | |
if y>0: | |
output += '\n' | |
line = ''.join([blank_dict.get((x, y), '.') for x in range(size[0])]) | |
output += line | |
return output | |
def join_all_at_once(size = (40,40)): | |
blank_dict = {} | |
output_list = [] | |
for y in range(size[1]): | |
if y > 0: | |
output_list.append('\n') | |
output_list.extend([blank_dict.get((x, y), '.') for x in range(size[0])]) | |
return ''.join(output_list) | |
data_point_1 = timeit.timeit('not_join()', number=10000, globals=globals()) | |
print(data_point_1) | |
data_point_2 = timeit.timeit('using_join_poorly()', number=10000, globals=globals()) | |
print(data_point_2) | |
data_point_3 = timeit.timeit('join_all_at_once()', number=10000, globals=globals()) | |
print(data_point_3) |
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