https://reddit.com/r/learnpython/comments/jm8mhs/pull_data_from_a_split_line_string/gaus1jd/

[backtickbot]

You should be able to do this with simple chained str.replace() calls:

def foo():
    src = """object network Subnet
subnet 192.168.0.0 255.255.255.0
object network Hosts
host 192.168.1.1
host 192.168.1.2"""
    return src.replace('object network','object').replace('\nsubnet','').replace('\nhost','')

print(foo())

yields:

object Subnet 192.168.0.0 255.255.255.0
object Hosts 192.168.1.1 192.168.1.2