How do I turn a list of lists of words into a sentence string?

Question

I have this list

[[\'obytay\'], [\'ikeslay\'], [\'ishay\'], [\'artway\']]

where I need it to look like

obytay ikeslay ishay ar         


        

Answer 1

def pig_latin(text):
  say = ""
  x=[]

  # Separate the text into words
  words = text.split()

  for word in words:
    # Create the pig latin word and add it to the list
    x.append(word[1:]+word[0]+'ay')

  for eachword in x:
    say += eachword+' '
    # Turn the list back into a phrase
  return say
        
print(pig_latin("hello how are you")) # Should be "ellohay owhay reaay ouyay"

print(pig_latin("programming in python is fun")) # Should be "rogrammingpay niay ythonpay siay unfay"

Answer 2

You have a list in a list so its not working the way you think it should. Your attempt however was absolutely right. Do it as follows:

' '.join(word[0] for word in word_list)

where word_list is your list shown above.

>>> word_list = [['obytay'], ['ikeslay'], ['ishay'], ['artway']]
>>> print ' '.join(word[0] for word in word_list)
obytay ikeslay ishay artway

Tobey likes his wart

Answer 3

You can also use reduce.

l = [['obytay'], ['ikeslay'], ['ishay'], ['artway']]
print " ".join(reduce(lambda a, b: a + b, l))
#'obytay ikeslay ishay artway'

Answer 4

It is a list of strings. So, you need to chain the list of strings, with chain.from_iterable like this

from itertools import chain
print " ".join(chain.from_iterable(strings))
# obytay ikeslay ishay artway

It will be efficient if we first convert the chained iterable to a list, like this

print " ".join(list(chain.from_iterable(strings)))