Iterate over the lines of a string

Question

I have a multi-line string defined like this:

foo = \"\"\"
this is 
a multi-line string.
\"\"\"

This string we used as test-input for a par

Answer 1

I suppose you could roll your own:

def parse(string):
    retval = ''
    for char in string:
        retval += char if not char == '\n' else ''
        if char == '\n':
            yield retval
            retval = ''
    if retval:
        yield retval

I'm not sure how efficient this implementation is, but that will only iterate over your string once.

Mmm, generators.

Edit:

Of course you'll also want to add in whatever type of parsing actions you want to take, but that's pretty simple.