Meteostat 1.5.9 (#66)

meteostat/__init__.py

@@ -12,7 +12,7 @@
 """
 
 __appname__ = 'meteostat'
-__version__ = '1.5.8'
+__version__ = '1.5.9'
 
 from .interface.base import Base
 from .interface.timeseries import Timeseries

meteostat/core/loader.py

@@ -61,7 +61,10 @@ def processing_handler(
  for dataset in datasets:
  output.append(load(*dataset))
 
- return pd.concat(output)
+ # Remove empty DataFrames
+ filtered = list(filter(lambda df: df.index.size > 0, output))
+
+ return pd.concat(filtered) if len(filtered) > 0 else output[0]
 
 
 def load_handler(

meteostat/interface/normals.py

@@ -285,7 +285,12 @@ def normalize(self):
  ['station', 'start', 'end', 'month'], inplace=True)
  # Merge data
  temp._data = pd.concat([temp._data, df], axis=0).groupby(
- ['station', 'start', 'end', 'month'], as_index=True).first()
+ [
+ 'station',
+ 'start',
+ 'end',
+ 'month'
+ ], as_index=True).first() if temp._data.index.size > 0 else df
 
  # None -> NaN
  temp._data = temp._data.fillna(np.NaN)

setup.py

@@ -15,7 +15,7 @@
 # Setup
 setup(
  name='meteostat',
- version='1.5.8',
+ version='1.5.9',
  author='Meteostat',
  author_email='[email protected]',
  description='Access and analyze historical weather and climate data with Python.',