Hallo ich stehe vor folgendem Problem:

# import the module
import pandas as pd

# creating a DataFrame
df = pd.DataFrame({'String 1' :['Tom', 'Nick', 'Krish', 'Jack'],
'String 2' :['Jane', 'John', 'Doe', 'Mohan']})

# function for prepending 'Geek'
def prepend_geek(name):
return 'Geek ' + name ...