提取长字符串之间的值

Question

I am trying to extract a string from a longer string in one of my columns.

Here is a sample of what I have tried:

df['Campaign'] = df.full_utm.str.extract('utm_campaign=([^&]*)')

and this is a sample of the string I am referring to:

?utm_source=Facebook&utm_medium=CPC&utm_campaign=April+Merchants+LAL+-+All+SA+-+CAP+250&utm_content=01noprice

The problem is that this only returns this:

A

The desired output in this context would be

April+Merchants+LAL+-+All+SA+-+CAP+250

Answer 1

Use urlparse

Ex:

import urllib.parse as urlparse

df['Campaign'] = df["full_utm"].apply(lambda x: urlparse.parse_qs(urlparse.urlparse(x).query)["utm_campaign"]) 
print(df)