Python - Deleting the first 2 lines of a string

Question

I\'ve searched many threads here on removing the first two lines of a string but I can\'t seem to get it to work with every solution I\'ve tried.

Here is what my string

Answer 1

I'd rather not split strings in case the string is large, and to maintain newline types afterwards.

Delete the first n lines:

def find_nth(haystack, needle, n):
    start = haystack.find(needle)
    while start >= 0 and n > 1:
        start = haystack.find(needle, start+len(needle))
        n -= 1
    return start
assert s[find_nth(s, '\n', 2) + 1:] == 'c\nd\n'

See also: Find the nth occurrence of substring in a string

Or to delete just one:

s = 'a\nb\nc\nd\n'
assert s[s.find('\n') + 1:] == 'b\nc\nd\n'

Tested on Python 3.6.6.