Pandas DataFrame Error: ValueError: StringArray requires a sequence of strings or pandas.NA

Question

Trying to convert kaggle titanic dataset pclass column datatype from int to string. Using pandas 1.0.5.

df.Pclass.head()
0    3
1    1
2    3
3    1
4    3
Name: Pclass, dtype: int64

Code is below:

df['Pclass'] = df['Pclass'].astype('string')

Thrown error as below:

ValueError: StringArray requires a sequence of strings or pandas.NA

Note: This worked for first time,not sure from 2nd time onwards keep getting this error.

halfer · Accepted Answer · 2020-08-15 08:36:24Z

2

The below code worked. As pandas >= 1.0, they have suggested to use string instead of str. But if source is numeric then we can use str instead of string to work.

df['Pclass'] = df['Pclass'].astype('str')

edited Aug 15, 2020 at 8:36

halfer

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answered Jul 29, 2020 at 23:56

Nages

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