如何从 CVS 文件的数据列中删除最后一个字符？

Question

I am trying to do a linear relation using a csv file with 3 columns of data. Unfortunately I am unable to read the 3rd (last column as int because it has an ';' in the end of each value. For example 213124121; , 1231231; etc.

data["the price;"] = df['the price;'].astype('int64') 

Error:

ValueError: invalid literal for long() with base 10: '399900; '

How can I remove the ';' for the whole column?

Answer 1

You can simple change df['the price;'] to df['the price;'][:-2]

it called string slicing in python, you can read more about it in here

Thanks @ stovfl to spot a mistake in my answer