is it possible to reduce length of this code

Question

https://code.sololearn.com/c46S144N3EDN/?ref=app

Answer 1

print([s[0].split('@')[0] for s in charan])

or

print([s[0][:s[0].index('@')] for s in charan])

Answer 2

split1=i[0].split("@")[0]

or if you want to put each element in an individual list:
split1=[i[0].split("@")[0]]

This doesn't seem to be exactly what you want, but I'm unsure of what you want your program to print if charan has more elements.

Answer 3

https://code.sololearn.com/cpwry0uv6u0g/?ref=app

made changes like this and working fine. is there a alternative way?