MAINT: Fix deprecated attribute 'convert' to comply with attrs 19.2.0#271

Merged

itziakos merged 1 commit intoenthought:masterfrom msfschaffner:attrs-19.2.0

Oct 3, 2019

+6-2

Commits on Oct 2, 2019

MAINT: Fix deprecated attribute 'convert' to comply with attrs 19.2.0
msfschaffner
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