For replacing the white space from a string in series or dataframe object use the str.replace()
method.
For Ex:
>>> import pandas as pd
>>> ser = pd.Series(['aaa ','aac vf','cc '])
>>> ser
0 aaa
1 aac vf
2 cc
dtype: object
>>> ser[0]
'aaa '
>>> len(ser[0])
4
>>> ser.str.replace(" ", "")
0 aaa
1 aacvf
2 cc
dtype: object
As you can see, the replace method removed the white spaces form string.
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