How Can I Determine My Python Shell's Bit Architecture?

Determining Python Shell Bit Architecture

To ascertain the bit architecture of the currently running Python shell, one can refer to various methods:

Using sys.maxsize

This variable provides insight into the shell's architecture. For 32-bit shells, it holds a value smaller than 2**32, while for 64-bit shells, it exceeds this threshold.

import sys
print(sys.maxsize, sys.maxsize > 2**32)

Using struct.calcsize("P")

This line calculates the size of a pointer, which is 8 bytes on 64-bit systems and 4 bytes on 32-bit systems. Multiplying this value by 8 gives the desired result.

import struct
print(8 * struct.calcsize("P"))

Note on platform.architecture()

While it appears to be a suitable solution, the results from platform.architecture() might not always be reliable, especially with OS X universal binaries. It is advisable to use more reliable approaches like sys.maxsize or struct.calcsize("P").

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