compatibility for cftime==1.1 (pvlib#900)

wholmgren · web-flow · commit 734fbbac8fc2 · 2020-02-21T15:19:10.000-07:00
* compat for cftime 1.1

* unused import

* whats new
diff --git a/docs/sphinx/source/whatsnew/v0.7.2.rst b/docs/sphinx/source/whatsnew/v0.7.2.rst
@@ -29,6 +29,7 @@ Bug fixes
   `0.7.0 what's new <https://pvlib-python.readthedocs.io/en/stable/whatsnew.html#v0-7-0-december-18-2019>`_
   entries about changes to ``PVSystem.pvwatts_ac``. Delete unreleased
   0.6.4 what's new file. (:issue:`898`)
+* Compatibility with cftime 1.1. (:issue:`895`)
 
 Documentation
 ~~~~~~~~~~~~~
diff --git a/pvlib/forecast.py b/pvlib/forecast.py
@@ -2,7 +2,6 @@
 The 'forecast' module contains class definitions for
 retreiving forecasted data from UNIDATA Thredd servers.
 '''
-import datetime
 from netCDF4 import num2date
 import numpy as np
 import pandas as pd
@@ -406,7 +405,8 @@ def set_time(self, time):
         -------
         pandas.DatetimeIndex
         '''
-        times = num2date(time[:].squeeze(), time.units)
+        times = num2date(time[:].squeeze(), time.units,
+                         only_use_cftime_datetimes=False)
         self.time = pd.DatetimeIndex(pd.Series(times), tz=self.location.tz)
 
     def cloud_cover_to_ghi_linear(self, cloud_cover, ghi_clear, offset=35,
