Modul (%) in python not like in C?

[Bryan Olson]

Arnau Sanchez wrote:
>> Dotan Cohen wrote:

>>> Second, in Turbo C -111%10=-1 however in python -111%10=9. Is one or
>>> the other in error? Is this a known gotcha? I tried to google the
>>> subject however one cannot google the symbol %. Thanks in advance.
[...]
> In fact, what you get in C depends on the compiler and architecture, 

Not according to the C standard:

     When integers are divided, the result of the / operator is
     the algebraic quotient with any fractional part discarded.(87)
     If the quotient a/b is representable, the expression
     (a/b)*b + a%b shall equal a.
     [...]
     87) This is often called ‘‘truncation toward zero’’.

     [International Standard ISO/IEC 9899:1999, Section 6.5.5
     Multiplicative operators, Paragraph 6 and footnote 87]


> while Python is always consistent and returns positive remainders.

Technically:

     The modulo operator always yields a result with the same sign
     as its second operand (or zero)

     [http://docs.python.org/ref/binary.html]


-- 
--Bryan