I have a pandas dataframe with a column phone. The column contains phone numbers. I want to add a ‘+’ before every number. How can I achieve this?
Right now I add an extra column to add both columns together but there must be a better way without creating an extra column. I’d be happy to learn more about this.
country_code = "+852" df.phone = country_code + df.phone
Thanks already in regards.
You can just concatenate and replace the old columns. need to convert
phone to string if it isn’t one.
country_code = "+852" df['phone'] = country_code + df['phone'].map(str)