CODEWITHSUNDEEP
pythonstringlistdictionaryint
Varuni Punchihewa
Varuni Punchihewa

Reputation: 60

How to convert string values from a list inside a dictionary, into float datatypes?

I have a dictionary as follows

data = {'CNN': ['5.89', '2.34'], 'BBC': ['6.78', '4.45']}

How do I convert the Strings in value lists into float?

So it becomes

data = {'CNN': [5.89, 2.34], 'BBC': [6.78, 4.45]}

Any help would be appreciated!

Upvotes: 0

Views: 897

Answers (3)

David Buck
David Buck

Reputation: 3828

The two answers already posted create new dictionaries which, if they really are that small, might be of no consequence.

If, however, the dictionary was very large, a better option may be to simply convert the strings to float in place within the existing dictionary.

data = {'CNN': ['5.89', '2.34'], 'BBC': ['6.78', '4.45']}

for k in data.keys():
    for i in range(len(data[k])):
        data[k][i] = float(data[k][i])

Output

{'CNN': [5.89, 2.34], 'BBC': [6.78, 4.45]}

Upvotes: 0

Code Pope
Code Pope

Reputation: 5449

Here a solution:

data = {'CNN': ['5.89', '2.34'], 'BBC': ['6.78', '4.45']}
data_float = {}
for k,v in data.items():
    data_float[k] = [float(elem) for elem in v]

data_float

Output:

{'BBC': [6.78, 4.45], 'CNN': [5.89, 2.34]}

Upvotes: 0

Djaouad
Djaouad

Reputation: 22776

You can use a dict-comprehension and map:

data = {k : list(map(float, v)) for k, v in data.items()}

Output:

{'CNN': [5.89, 2.34], 'BBC': [6.78, 4.45]}

Upvotes: 1

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