Memory allocation.

Hi,
I wanted to know how much memory is set aside for each data type...or the "objects" rather? Like in C/C++, 'int' took up 4 bytes...'char' 2 bytes and so on....I just wanted to know abt Python objects....that also includes lists, tuples, dictionaries, etc.


Thanks,
Subha

There is no simple answer to the question, since it will vary depending on the OS and C compiler, as well as the flags that Python was compiled with.

However you can find all the information you need by looking at the C header files, which should be in an 'include' directory in your Python installation. The place to start is "object.h" which defines the C structs that represent the main Python types.

Good Luck.

Dave - The Developers' Coach

Thanks Dave!
I was searching thru' the net and this piece caught my eye... thought I wld share it with the Python ppl....

Memory sizes of built-in datatypes----------->

Integer ...............:12 bytes
Long Integer.........:12 bytes + (nbits/16 + 1)*2 bytes
Floats..................:16 bytes
Complex...............:24 bytes
List.....................:16 bytes + 4 bytes for each item
Tuple...................:16 bytes + 4 bytes for each item
String..................:20 bytes + 1 byte per character
Dictionary.............:24 bytes + 12*2n bytes, n=log2(nitems) + 1



Rgds,
Subha