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TA贡献1982条经验 获得超2个赞
我对我能找到的所有不同方法进行了基准测试,结果如下:
datetime.strftime - 1000000 次循环的时间:9.262935816994286
转换为字符串- 1000000 次循环的时间:4.381643378001172
datetime isoformat - 1000000 次循环的时间:4.331578577999608
pendulum to_iso8601_string - 1000000 次循环的时间:18.471532950992696
rfc3339 - 1000000 次循环的时间:24.731586036010412
生成它的代码是:
import timeit
from datetime import datetime
from pendulum import datetime as pendulum_datetime
from rfc3339 import rfc3339
dt = datetime(2011, 11, 4, 0, 5, 23, 283000)
pendulum_dt = pendulum_datetime(2011, 11, 4, 0, 5, 23, 283000)
repeats = 10**6
print('datetime strftime')
func1 = lambda: datetime.strftime(dt, "%Y-%m-%dT%H:%M:%S.%f%z")
print(func1())
print('Time for {0} loops: {1}'.format(
repeats, timeit.timeit(func1, number=repeats))
)
print('cast to string')
func2 = lambda: str(dt)
print(func2())
print('Time for {0} loops: {1}'.format(
repeats, timeit.timeit(func2, number=repeats))
)
print('datetime isoformat')
func3 = lambda: datetime.isoformat(dt)
print(func3())
print('Time for {0} loops: {1}'.format(
repeats, timeit.timeit(func3, number=repeats))
)
print('pendulum to_iso8601_string')
func4 = lambda: pendulum_dt.to_iso8601_string()
print(func4())
print('Time for {0} loops: {1}'.format(
repeats, timeit.timeit(func4, number=repeats))
)
print('rfc3339')
func5 = lambda: rfc3339(dt)
print(func5())
print('Time for {0} loops: {1}'.format(
repeats, timeit.timeit(func5, number=repeats))
)
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