Change by AVicennA :
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components: Library (Lib)
files: cProfiling.txt
nosy: AvicennA
priority: normal
severity: normal
status: open
title: cProfile behaviour issue with decorator and math.factorial() lib.
type: behavior
versions: Python 3.8
Added file: https://bugs.python.org
AVicennA added the comment:
Hello, I use decorators in my Python project. I tested project with
cProfile(profiling). Then,
I decide did test with some decorator code fragments. Some results were
surprising:
import functools
import cProfile
def decor(func):
@functools.wraps(func
AVicennA added the comment:
In short, here are different behaviours in increasing steps of values, which
are (based on my researching) giving incorrect results in relation to each
other.
Given example:
import functools
import cProfile
def decor(func):
@functools.wraps(func)
def
AVicennA added the comment:
In official documentation: https://docs.python.org/3/library/profile.html was
not noted about the difference behaviour of cProfile in command line and into
the file.
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AVicennA added the comment:
@rhettinger, I did not write nowhere in my post that it's a pure bug. I use
"behaviour" instead of it. And it getting me incorrect results everytime, that
is why I should wrote it in here for resolving this problem. This is not about
getting erro
New submission from AVicennA :
This is about rounding process and getting incorrect results. In documentation
written
that, "This is not a bug: it’s a result of the fact that most decimal fractions
can’t be
represented exactly as a float". -
https://docs.python.org/3/library/func
AVicennA added the comment:
@steven.daprano, yes, my_round(2.675, 2) --> gave 2.68 and it's not buggy and
not wrong. This is correct in this case. I advise you look at 5th class math
book.
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Change by AVicennA :
Removed file: https://bugs.python.org/file48764/cProfiling.txt
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<https://bugs.python.org/issue38993>
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AVicennA added the comment:
@mark.dickinson,
1) Where is your "`round` is giving the correct result in all cases"??
>>> round(4.395, 2)
4.39
2) I wrote it in my post using decimal punct:
''' Because, when the decimal string is converted to a binary float
Change by AVicennA :
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resolution: not a bug -> later
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AVicennA added the comment:
@mark.dickinson:
You asked some questions, then, I also asked you about solving this problem. It
seems to me you just love to talk.. I just answered to your questions. If "this
isn't the right forum for that discussion" as you mean, it concerns you
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