Ah, I found one problem: your script uses .writelines with a string as
the argument. writelines usually takes an iterator (like a list) but it
will also work with a string argument, and then do:
for char in s:
w.write(char)
if I replace the writelines(...) with a .write(...) it becomes much
faster, both on cpython and pypy.
CF
On 5/2/21 12:49 AM, Emre Yavuz wrote:
Hi Carl,
Sorry I couldn’t receive your message (probably something wrong in my
mail configuration) but I saw the message from digest.
I created self contained program for this example. I am using “writelines”
*That’s paste bin link to program:*
https://pastebin.com/D6auMcwN <https://pastebin.com/D6auMcwN>
*Command line:*
(devpy) emreyavuz:tmp emreyavuz$ python3 test-writer
Time has been spend for copying data 28 secs
(devpy) emreyavuz:tmp emreyavuz$ pypy3 test-writer
Time has been spend for copying data 118 secs
Best,
Emre Yavuz
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