История изменений

Исправление Darth_Revan, 26.11.18 15:33 (текущая версия) :

Note: The compiled versions of the most recent patterns passed to re.compile() and the module-level matching functions are cached, so programs that use only a few regular expressions at a time needn’t worry about compiling regular expressions.

Есть такое.

import re
for i in range(0, 500000):
    if re.match(r"^w.*t$", "wut"):
        pass

real	0m0,865s
user	0m0,851s
sys	0m0,009s

import re
regex = re.compile(r"^w.*t$")
for i in range(0, 500000):
    if regex.match("wut"):
        pass

real	0m0,364s
user	0m0,356s
sys	0m0,008s

Но в чём подвох тогда?
Разрыв устойчивый. Python 3.6.5, x86-64.

Исправление Darth_Revan, 26.11.18 15:29:

Note: The compiled versions of the most recent patterns passed to re.compile() and the module-level matching functions are cached, so programs that use only a few regular expressions at a time needn’t worry about compiling regular expressions.

Есть такое.

import re
for i in range(0, 500000):
    if re.match(r"^w.*t$", "wut"):
        pass

real	0m0,865s
user	0m0,851s
sys	0m0,009s

import re
regex = re.compile(r"^w.*t$")
for i in range(0, 500000):
    if regex.match("wut"):
        pass

real	0m0,364s
user	0m0,356s
sys	0m0,008s

Но в чём подвох тогда?
Результат устойчивый. Python 3.6.5, x86-64.

Исходная версия Darth_Revan, 26.11.18 15:25:

Note: The compiled versions of the most recent patterns passed to re.compile() and the module-level matching functions are cached, so programs that use only a few regular expressions at a time needn’t worry about compiling regular expressions.

Есть такое.

import re
for i in range(0, 500000):
    if re.match(r"^w.*t$", "wut"):
        pass

real	0m0,865s
user	0m0,851s
sys	0m0,009s

import re
regex = re.compile(r"^w.*t$")
for i in range(0, 500000):
    if regex.match("wut"):
        pass

real	0m0,364s
user	0m0,356s
sys	0m0,008s

Но в чём подвох тогда?
Результат устойчивый.