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

ShaharNaveh · web-flow · commit 556e1c26a544 · 2020-04-13T17:07:11.000-07:00
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
