Rodrick Brown wrote: > From the following input > > 9 > BANANA FRIES 12 > POTATO CHIPS 30 > APPLE JUICE 10 > CANDY 5 > APPLE JUICE 10 > CANDY 5 > CANDY 5 > CANDY 5 > POTATO CHIPS 30 > > I'm expecting the following output > BANANA FRIES 12 > POTATO CHIPS 60 > APPLE JUICE 20 > CANDY 20 > > However my code seems be returning incorrect value > > #!/usr/bin/env python3 > > import sys > import re > from collections import OrderedDict > > if __name__ == '__main__': > > od = OrderedDict() > recs = int(input()) > > for _ in range(recs): > file_input = sys.stdin.readline().strip() > m = re.search(r"(\w.+)\s+(\d+)", file_input) > > if m: > if m.group(1) not in od.keys(): > od[m.group(1)] = int(m.group(2)) > else: > od[m.group(1)] += int(od.get(m.group(1),0))
Look closely at the line above. What value do you want to add to the current sum? What value are you actually providing on the right side? > for k,v in od.items(): > print(k,v) > > What's really going on here? > > $ cat groceries.txt | ./groceries.py > BANANA FRIES 12 > POTATO CHIPS 60 > APPLE JUICE 20 > CANDY 40 -- https://mail.python.org/mailman/listinfo/python-list
