Я использовал defaultdict
для суммирования ваших значений и приказал напечатать:
import csv
from collections import defaultdict, OrderedDict
def convert(data):
try:
return int(data)
except ValueError:
return 0
with open('MonthData1.csv', 'r') as file1:
read_file = csv.reader(file1, delimiter=';')
delheader = next(read_file)
data = defaultdict(int)
for line in read_file:
valuedata = max(0, sum([convert(i) for i in line[1:5]]))
data[line[0].split()[0]] += valuedata
for key in OrderedDict(sorted(data.items())):
print('{} {}'.format(key, data[key]))
РЕДАКТИРОВАТЬ: Для расчета совокупных значений:
import csv
from collections import defaultdict, OrderedDict
def convert(data):
try:
return int(data)
except ValueError:
return 0
with open('MonthData1.csv', 'r') as file1:
read_file = csv.reader(file1, delimiter=';')
delheader = next(read_file)
data = defaultdict(int)
for line in read_file:
valuedata = max(0, sum([convert(i) for i in line[1:5]]))
data[line[0].split()[0]] += valuedata
previous_values = []
for key, value in OrderedDict(sorted(data.items())).items():
print('{} {}'.format(key, value + sum(previous_values)))
previous_values.append(value)
Результаты:
1.5.2018 245
2.5.2018 350
4.5.2018 433