def validate_groupby_func(name, args, kwargs, allowed=None):
 if (allowed is None):
  allowed = []
 kwargs = (set(kwargs) - set(allowed))
 if ((len(args) + len(kwargs)) > 0):
  raise UnsupportedFunctionCall('numpy operations are not valid with groupby. Use .groupby(...).{func}() instead'.format(func=name))

def validate_groupby_func ( name , args , kwargs , allowed = None ) : if ( allowed is None ) : allowed = [ ] kwargs = ( set ( kwargs ) - set ( allowed ) ) if ( ( len ( args ) + len ( kwargs ) ) > 0 ) : raise UnsupportedFunctionCall ( 'numpy operations are not valid with groupby. Use .groupby(...).{func}() instead' . format ( func = name ) )
args and kwargs should be empty .