Hello, Does print function make the code run slower? I'm storing the n

Question

Hello, Does print function make the code run slower? I'm storing the needed results in an external text file, but I would like to know if the print function will make it run slower or not? Thanks in advance :)

Sachin Singh · Answer

obviously printing something will be slower, if you are printing line by line huge amount of data then there will be a dramatic decrease in performance.

Ganesan C · Answer

Yes. Every task in program took some amount of time(milliseconds). But if you are adding lot of print statements then obviously it tooks time and it affects speed of the program.

Sagar Lad · Answer

True. target = open('target.txt', 'w') for item in xrange(4000000): target.write(str(item)+'
') print item Timing it: [gp@imdev1 /tmp]$ time python large.py real 1m51.690s user 0m10.531s sys 0m6.129s gp@imdev1 /tmp]$ ls -lah target.txt -rw-rw-r--. 1 gp gp 30M Nov 8 16:06 target.txt Now running the same with "print" commented out: gp@imdev1 /tmp]$ time python large.py real 0m2.584s user 0m2.536s sys 0m0.040s

Rajanikant Hawaldar · Answer

it absolutely will slow it down, so only print when something remarkable happens (like +1% completion)

Ramesh · Answer

actually i am expecting like ~10,000 per second .. so i think it will slow it down

Rajanikant Hawaldar · Answer

printing to the terminal can be a bottleneck for heavy processing, but you won't notice a difference unless you're printing 1000s of times a second

Hello, Does print function make the code run slower? I'm storing the n

Answers (6)