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Using sys.maxint will not work to detect a 64-bit Python when running Windows (see here). Instead, use struct.calcsize("P") for a cross-platform solution. –
Apr 16, 2015 · In particular, on some OS X multi-architecture builds, the same executable file may be capable of running in either mode, as the example below demonstrates. The quickest safe multi-platform approach is to test sys.maxsize on Python 2.6, 2.7, Python 3.x. $ arch -i386 /usr/local/bin/python2.7.
Oct 26, 2022 · The following Python script can be used to determine whether the Python shell is executing in 32bit or 64bit mode. The code was compiled successfully and it gave the result. Method 1: Using Platform Packages
You can also run the below python script to check if python is 32 or 64-bit version. # First import struct module. >>> import struct >>> # Return 64 means 64-bit version, return 32 means 32-bit version. >>> version = struct.calcsize("P")*8 >>> >>> print(version) 64
Apr 9, 2024 · Use the python -c "import sys; print(sys.maxsize > 2**32)" command to check if Python is running as 32-bit or 64-bit. The command will return True if Python is running in 64-bit and False if it's running in 32-bit.
One simple way of checking if Python is running 32-bit or 64-bit is by using the python -c command. Open a terminal window and type python -c 'import struct; print(struct.calcsize("P") * 8)' (without the quotes). This will tell you whether you are running a 32-bit or 64-bit version of Python.
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Nov 6, 2019 · 32-bit Python binaries can run on 64-bit OS. To precisely detect if the operating system is 64-bit or 32-bit, check if Python itself is 32-bit to avoid falsely detecting a 64-bit OS as 32 bit. This check is just for the Python interpreter. To detect OS parameters in a cross-platform-robust way further checks are necessary.