CODEWITHSUNDEEP
pythonpandas
hkbgner
hkbgner

Reputation: 331

Renaming dataframe columns

I have got a Pandas dataframe where the column indices are tuples of size 3. I noticed some of them are only of size 2 and have missed a value. I have been trying to rename those columns by doing so:

    for x in df.columns:
        if len(x) == 2:
            y = list(x)
            y.insert(1, 'missing_str')
            df.rename(columns={x, tuple(y)}, inplace=True)

However, I got a TypeError: 'set' object is not callable.

Would appreciate any help to solve with the problem.

Upvotes: 0

Views: 227

Answers (1)

mcsoini
mcsoini

Reputation: 6642

pandas.DataFrame.rename(columns=...) requires a dict or a function. You are providing a set. Did you mean {x: tuple(y)}?

Upvotes: 2

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