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from sys import version_info
from functools import reduce
from operator import mul
from flask_babel import gettext
if version_info[0] == 3:
unicode = str
keywords = ('min',
'max',
'avg',
'sum',
'prod')
# required answerer function
# can return a list of results (any result type) for a given query
def answer(query):
parts = query.query.split()
if len(parts) < 2:
return []
try:
args = list(map(float, parts[1:]))
except:
return []
func = parts[0]
answer = None
if func == b'min':
answer = min(args)
elif func == b'max':
answer = max(args)
elif func == b'avg':
answer = sum(args) / len(args)
elif func == b'sum':
answer = sum(args)
elif func == b'prod':
answer = reduce(mul, args, 1)
if answer is None:
return []
return [{'answer': unicode(answer)}]
# required answerer function
# returns information about the answerer
def self_info():
return {'name': gettext('Statistics functions'),
'description': gettext('Compute {functions} of the arguments').format(functions='/'.join(keywords)),
'examples': ['avg 123 548 2.04 24.2']}
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