Python Optimizations: Are Nested Dict's or Dict's with Tuples for Key's quicker?
Dict[Dict[Any, Any]] vs Dict[Tuple[Any, Any]]
Which is faster in python? A Dict with tuples as keys or a dict of dict’s? TLDR: A dict of tuples, but only by a little bit!
The test:
from timeit import timeit
def dict_test():
d = {}
for i in range(1, 1000):
d[(i, i*5)] = i
for i in range(1,1000):
d[(i, i*5)]
def dict_test2():
d = {}
for i in range(1, 1000):
if i not in d:
d[i] = {}
d[i][i*5] = i
for i in range(1,1000):
d[i][i*5]
print("dict_test took: {}s".format(timeit(dict_test, number=10000)))
print("dict_test2 took: {}s".format(timeit(dict_test2, number=10000)))
The result:
dict_test took: 3.9785058770678177s
dict_test2 took: 4.405024016745074s