go one step back and one step forward in a loop with python

Question

I need to loop in a list containing french words and find an asterisk because I want to concatenate the word before the asterisk and the word after the asterisk each time an ast

Answer 1

I wondered how to manage a list (nonsense) like this:

words = ['Bien', '*', 'venue', 'pour', 'les','engage', '*', 'ment', 'trop', 'de', 'YIELD', 'peut','être','contre', '*', 'productif' ]

So I came u with a method like this:

def join_asterisk(ary):
  i, size = 0, len(ary)
  while i < size-2:
    if ary[i+1] == '*':
      yield ary[i] + ary[i+2]
      i+=2
    else: yield ary[i]
    i += 1
  if i < size:
    yield ary[i]

Which returns:

print(list(join_asterisk(words)))
#=> ['Bienvenue', 'pour', 'les', 'engagement', 'trop', 'de', 'YIELD', 'peut', 'être', 'contreproductif']