: i'm confused with & and AND. for eg: : >>> 1110 & 0110 : 64 : >>> 1110 and 0110 : 72 : : i'm expecting if 1110 and with 0110 will get 0110 or 6. : pls advise.
Above, python thinks you are representing one number in decimal notation and the other in octal. Decimal (no leading zeroes): >>> 14 & 6 6 Binary (leading with '0b'): >>> 0b1110 & 0b0110 6 Octal (leading with '0'): >>> 016 & 006 6 Hexadecimal (leading with '0x'): >>> 0xe & 0x06 6 Additionally, you will want to distinguish which operator you intend, bitwise or boolean. It seems fairly clear that you are intending the bitwise operator if you are expecting '6' to be the answer. & bitwise 'and' and boolean 'and' Read these three sections, at least, to understand the operators you are trying to use: http://docs.python.org/reference/expressions.html#unary-arithmetic-and-bitwise-operations http://docs.python.org/reference/expressions.html#boolean-operations http://docs.python.org/reference/expressions.html#summary This may also be useful: http://docs.python.org/library/stdtypes.html#numeric-types-int-float-long-complex Good luck, -Martin -- Martin A. Brown http://linux-ip.net/ _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
