does int() automatically call round()?

[zensunni]

I've tested it and it seems solid. I just want to make sure it always rounds correctly.

the original number is a float like:

var = 44.7

And I'm using int to change to an integer like so:

var = int(44.7)
print var

output: 45

Will this always work? I just have to be accurate on my results.

[Laharl]

If you want to be absolutely sure, call round() yourself each time.

[msewing]

A little experimentation shows that int() does not round.

>>> int(44.1)
44
>>> int(44.7)
44
>>> int(round(44.7))
45

on my machine. Please check your results again!

"Python in a Nutshell" (Martelli): "When x is a number, int(x) truncates toward 0, dropping any fractional part."

BTW, I recommend the Martelli book.

[kaarthikeyapreyan]

I don believe that int() calls round implicitly
>>> int(44.5)
44
>>> int(44.7)
44
these were my results

you can use the round method to round off without calling int()
>>> round(4.7)
5.0
>>> round(4.3)
4.0
if you want your results to be really acurate

[zensunni]

Thanks for the reply. I'm pretty sure my tests actually rounded the number, but maybe my memory failed me. In any case, the inconsistancy is enough for me to make it explicit.

I'm glad I made sure.

[diegososa]

Thanks for the reply. I'm pretty sure my tests actually rounded the number, but maybe my memory failed me. In any case, the inconsistancy is enough for me to make it explicit.

I'm glad I made sure.

Where is the inconsistancy???? It's pretty clear, the only thing that you have to do is read the docs...

int( [x[, radix]]) 
 
Convert a string or number to a plain integer. If the argument is a string, it must contain a possibly signed decimal number representable as a Python integer, possibly embedded in whitespace. The radix parameter gives the base for the conversion and may be any integer in the range [2, 36], or zero. If radix is zero, the proper radix is guessed based on the contents of string; the interpretation is the same as for integer literals. If radix is specified and x is not a string, TypeError is raised. Otherwise, the argument may be a plain or long integer or a floating point number. [b]Conversion of floating point numbers to integers truncates (towards zero)[/B]. If the argument is outside the integer range a long object will be returned instead. If no arguments are given, returns 0. 

[zensunni]

that would probably be the inconsistancy of my "failed" memory and what people posted.

:)