How do I lowercase columns names and removing white spaces?
I need to lowercase the column names and and get rid of the gaps.
After using the method .lower() I got an error:
'Index' object has no attribute 'lower'
What am I doing incorrectly?
Solution
Lower casing column names:
df.columns = df.columns.str.lower()
Deleting white spaces:
df.columns = df.columns.str.strip()
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