Numpy rounding fix (#3758)

ensure rounding is numpy like (maintains type)
SciTools · Aug 5, 2020 · d56650d · d56650d
1 parent 7a74615
commit d56650d
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/lib/iris/fileformats/pp_load_rules.py b/lib/iris/fileformats/pp_load_rules.py
@@ -627,7 +627,7 @@ def _convert_time_coords(
     def date2hours(t):
         epoch_hours = _epoch_date_hours(epoch_hours_unit, t)
         if t.minute == 0 and t.second == 0:
-            epoch_hours = round(epoch_hours)
+            epoch_hours = np.around(epoch_hours)
         return epoch_hours
 
     def date2year(t_in):

diff --git a/requirements/core.txt b/requirements/core.txt
@@ -8,7 +8,7 @@ cartopy>=0.12
 cf-units>=2
 cftime
 dask[array]>=2  #conda: dask>=2
-matplotlib
+matplotlib<3.3
 netcdf4
 numpy>=1.14
 scipy