To remove unwanted parts from strings in a column with Python Pandas, we can use the map method.
For instance, we write
data['result'] = data['result'].map(lambda x: x.lstrip('+-').rstrip('aAbBcC'))
to call map with a lambda function that returns the original string with the unwanted parts removed with lstrip and rstrip.
And then we assign the returned results back to the result column
