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How do I check if my installed numpy version is 32bit or 64bit?
Bonus Points for a solution which works inside a script and is system independent.
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Click Start, type system in the search box, and then click System in the Control Panel list. The operating system is displayed as follows: For a 64-bit version operating system: 64-bit Operating System appears for the System type under System.
You can generally install multiple Python Version side by side.
32-bit Python, and 32-bit apps generally, can access only 4GB of memory at a time. 64-bit applications don't have this limit, hence many data analysis and machine learning tools for Python work best in 64-bit incarnations. Some are available only in 64-bit versions.
Python's floating-point numbers are usually 64-bit floating-point numbers, nearly equivalent to np.
In [65]: import numpy.distutils.system_info as sysinfo
In [69]: sysinfo.platform_bits
Out[69]: 64
This is based on the value returned by platform.architecture():
In [71]: import platform
In [72]: platform.architecture()
Out[74]: ('64bit', 'ELF')
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