64-bit Windows Biopython

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64-bit Windows Biopython

64 Bit Windows machines normally use a 32 bit version of Biopython/Python/NumPy. This page is a scratchpad documenting how to generate a 64 bit version.

Firstly, such a version is already available, courtesy of Christoph Gohlke at Unofficial Windows Binaries for Python Extension Packages.

To use a 64-bit version the following is needed: 64-bit Python and 64 bit NumPy. As of today, there is no official version 64 bit of NumPy. Chris makes one available at the address above.

If you intend to compile Biopython from scratch then a 64 bit C compiler is also needed.

If you have both 32 bit and 64 bit versions of the above installed than some care is needed to avoid mixups. Using the wrong compiler seems to happen quite a bit (if you have both installed).

mingw 64

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