My raw data is:
abc 123
abc 456
def 789
def 101112
I want to put this into a dictionary where the first column is the key and the second column is the value. In the dictionary I currently have:
{'abc': ['123', '456'], 'def': ['789', '101112']}
instead of appending the values I want to add them to the original value so that it looks like:
{'abc': ['579'], 'def': ['101901']}
My current code is:
d = defaultdict(list)
infile = open('test.csv','r')
lines = infile.readlines()[2:-1]
for item in lines:
key, value = [a.strip() for a in item.split(' ')]
d[key].append(value)
d = defaultdict(list)
infile = open('test.csv','r')
lines = infile.readlines()[2:-1]
for item in lines:
key, value = [a.strip() for a in item.split(' ')]
if key in d:
d[key][0] = str(int(d[key][0]) + value)
else:
d[key].append(str(value))
d = defaultdict(list)
with open('test.csv', 'r') as infile:
for line in infile.readlines()[2:-1]:
key, value = [a.strip() for a in item.split(' ')]
d[key] = str(int(d[key] + value))
Here is version using default python dict
:
d = dict()
infile = open('test.csv', 'r')
lines = infile.readlines()[2:-1]
for line in lines:
k, v = [i.strip() for i in line.split(' ')]
if k in d:
d[k] = [str(int(d[k][0]) + int(v))]
else:
d[k] = [v]
print d
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