Python 3 - Spinning text

I'm stucked on doing something like this..

from this

{Hi|Hello} I am - {Me|You|Us}

to this

#Possible results
'Hi I am - You'
'Hello I am - Me'
'Hi I am - Us'
'Hello I am - You'

So basically, the code will search for words which are enclosed in curly braces {}. Those curly braces have multiple words inside them which would be splitted. All in all, every curly braces will output only word, which it will choose randomly.

Do I need regex for this? I tried searching for premade libraries, but I just found an outdated one..can anyone help please?

If your input is relatively simple -- the only occurrences of { and } are for the purposes of providing multiple possible text fragments as shown in the question -- you could use a regex like the following:

import re

p = re.compile('(\{[^\}]+\}|[^\{\}]*)')

Then you'd split the text into fragments like so:

frags = p.split("{Foo|Bar} baz {quux|wibble}.")
# ['', '{Foo|Bar}', '', ' baz ', '', '{quux|wibble}', '', '.', '']

For each string in this list, you can generate a list of possible values (only one for the strings not starting with {):

def options(s):
    if len(s) > 0 and s[0] == '{':
        return [opt for opt in s[1:-1].split('|')]
    return [s]

options("foo")
# ["foo"]

options("{foo|bar}")
# ["foo", "bar"]

Then build a list of lists of options:

opt_lists = [options(frag) for frag in frags]

Then build the Cartesian product and join:

import itertools

for spec in itertools.product(*opt_lists):
    print(''.join(spec))

Here's the output for the "{Foo|Bar} baz {quux|wibble}." example:

Foo baz quux.
Foo baz wibble.
Bar baz quux.
Bar baz wibble.

If there are additional complexities in your inputs, you might need to use more complex regular expressions or a parser for the actual input format, but the general idea of producing a list of lists of options as an intermediate result remains valid.