Possible AstroPy 3.0 internal bug

I started getting error

ValueError: Column dX_2000A_A failed to convert: could not convert string to float: ‘9 521 586’

on Travis-CI and AppVeyor. This might be a glitch in AstroPy’s auto-download mechanism, but I didn’t take the time to formally investigate as this might require a totally fresh Python install (not just a virtualenv).