max_workers limited to 61

[rileyg98]

Latest pypi version - I've just tried to use Swifter for the first time and it appears there's a max_workers limit of 61. Given swifters default of 2*cpu_core this is lower than a conceivable number - a 32-core Threadripper 3970x will go above this limit.

Either setting a maximum of 61 when calculating the default, or expanding the max_workers limit would resolve this issue.

[rileyg98]

It would appear that this issue is related to cpython on Windows.

[jmcarpenter2]

Swifter defaults npartitions to 2*cpu_core, but you can control that parameter with df.swifter.set_npartitions or with the set_defaults functionality