datetime with every screenshot name

[evilcode1]

Oh, sorry, I should have seen this long ago
The colon (:) is not allowed in file name on windows. So it makes the file name only up to the hour (incl.). So all files have the same name and that's why you get just one at the end.

the best - make the format string %Y%m%d%H%M

working :)
thank u very much <3<3<3

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okay now its time to explain for me this section :

'qan-{:%Y-%m-%d %H:%M}({}).png'.format(d, i))

can u explain it in details i need to learn i now what is (%Y-%m-%d %H:%M) for but this for what : ({}) ?