TypeError: string indices must be integers using pandas apply with lambda

Question

I have a dataframe, one column is a URL, the other is a name. I\'m simply trying to add a third column that takes the URL, and creates an HTML link.

The column

Answer 1

With zip and string old school string format

df['sourceURL'] = ['%s.' % (x,y) for x , y in zip (df['url'], df['source'])]

This is f-string

[f'{y}' for x , y in zip ((df['url'], df['source'])]