# Comparing and Concatenating Tuples in Python Code Answer

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I have a python tuple whose elements are actually sentences. I want to compare the first letters of each element and if they are lowercase, I join it to the previous element. And if they aren’t I just join the first element. For instance if I have:

```tuple1 = ('Traditionally, companies have been communicating', 'with consumers through traditional or old media.', 'The rapid changes in the cyber world.', 'This is another sentence', 'which is incomplete.')
```

My result should be:

```tuple1 = ('Traditionally, companies have been communicating with consumers through traditional or old media.', 'The rapid changes in the cyber world.', 'This is another sentence which is incomplete.')
```

This is my working code:

```i=0
while i<(len(tuple1)-1):
if tuple1[i+1][0].islower():
tuple1[i] + " " + tuple[i+1]
i+=1
```

How can I achieve this? Thanks

You can use `itertools.groupby`:

```import itertools
tuple1 = ('Traditionally, companies have been communicating', 'with consumers through traditional or old media.', 'The rapid changes in the cyber world.', 'This is another sentence', 'which is incomplete.')
new_data = tuple(' '.join(i[-1] for i in b) for _, b in itertools.groupby(enumerate(tuple1), key=lambda x:x[-1][0].islower() or tuple1[x[0]+1][0].islower() if x[0]+1 < len(tuple1) else True))
```

Output:

```('Traditionally, companies have been communicating with consumers through traditional or old media.', 'The rapid changes in the cyber world.', 'This is another sentence which is incomplete.')
```