CLN: General cleanup in _libs/lib.pyx (pandas-dev#33532)

ShaharNaveh · CloseChoice · commit d729da33ca39 · 2020-04-20T21:36:40.000+02:00
diff --git a/pandas/_libs/lib.pyx b/pandas/_libs/lib.pyx
@@ -1,9 +1,6 @@
 from collections import abc
 from decimal import Decimal
-from fractions import Fraction
-from numbers import Number
 
-import sys
 import warnings
 
 import cython
