+ 2

Which is better and faster?

Which is better and faster when working with a string, convert everything into a string https://code.sololearn.com/cDlhkNf5a3VS/?ref=app , using format() method https://code.sololearn.com/cF0IyJMWs0Vg/?ref=app , or C-style formatting https://code.sololearn.com/cof5apu7Eqn6/?ref=app ? And why???

25th Aug 2019, 4:27 PM
Prasetya
Prasetya - avatar
7 odpowiedzi
+ 6
It seems that C-style format is fastest: https://code.sololearn.com/cXcKCUuMmTUd/?ref=app
25th Aug 2019, 4:54 PM
Seb TheS
Seb TheS - avatar
+ 4
You can make speed tests using timeit: import timeit timeit.timeit("x + x", setup="x = 2", number=10000) Where "x + x" is a script executed 10000 times and the total runtime will be returned in seconds. "x = 2" was executed only once in the beginning and will be ignored from the total runtime.
25th Aug 2019, 4:42 PM
Seb TheS
Seb TheS - avatar
+ 4
Thanks a lot 😊
26th Aug 2019, 3:42 PM
Devi Kamaraj..😉
Devi Kamaraj..😉 - avatar
+ 3
Seb thes: I cant understand ur explanation about timeit.Is this about python?And it is default library in python?
26th Aug 2019, 1:56 PM
Devi Kamaraj..😉
Devi Kamaraj..😉 - avatar
+ 2
Prasetya I don't know. I very rarely use C-style format, I self prefer the format method because it is very readable to use, more readable than using string concatenation such as str(x) + string + str(y). You might be interested in builtin function repr, which often does the same thing than the str constructor, repr is often half faster than str. str(5) -> '5' repr(5) -> '5' str('b') -> 'b' repr('b') -> '\'b\''
26th Aug 2019, 4:04 PM
Seb TheS
Seb TheS - avatar
+ 1
Hepziba janet Timeit is a module from the standard library. It has a method with same name as the module (timeit), which can take 3 arguments. In: timeit.timeit(stmt=a, setup=b, number=c) where: c is a positive integer. a is a string including any Python script, such as "print(\"knight\")", this script will be repeated c times. And the timeit method will return the total time took for a to be ran c times as float. b is also a string of a Python script, but it will only be ran once in the beginning. This is good for example function definitions.
26th Aug 2019, 2:23 PM
Seb TheS
Seb TheS - avatar
0
Seb Thes, is it possible to implement it in more complex code and produce different results, for example c-style is slower this time... Or what you are tested is absolute (if simple code c-style format is the fastest, then automatically in the more complex code, c-style is still the fastest) I know, bad grammar, sorry
26th Aug 2019, 3:14 PM
Prasetya
Prasetya - avatar