Update test_period_range.py

jnecus · jnecus · commit a40ab465f6a6 · 2020-05-14T19:42:19.000+01:00
diff --git a/pandas/tests/indexes/period/test_period_range.py b/pandas/tests/indexes/period/test_period_range.py
@@ -1,5 +1,6 @@
 import numpy as np
 import pytest
+
 from pandas import NaT, Period, PeriodIndex, date_range, period_range
 import pandas._testing as tm
 
