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Fix for netcdf4 returning masked array with no masked points. #3181

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Fix for netcdf4 returning masked array with no masked points. #3181

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4 changes: 4 additions & 0 deletions lib/iris/fileformats/netcdf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -393,6 +393,10 @@ def __getitem__(self, keys):
variable = dataset.variables[self.variable_name]
# Get the NetCDF variable data and slice.
var = variable[keys]
# Make into a 'plain' array if no masked points,
# for compatibility with netcdf <= 1.3.
if isinstance(var, np.ma.MaskedArray) and not np.ma.is_masked(var):
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var = var.data
finally:
dataset.close()
return np.asanyarray(var)
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