Combing 2D list of tuples and then sorting them in Python

Question

Update: The list are filled with strings I edited the list to show this

I have 3 different list such as

Section = [(\'1\', \'1.1\', \'1.2\'), (\'1\',         


        

Answer 1

Try this,

Section = [('1', '1.1', '1.2'), ('1', '2', '2.2', '3'), ('1', '1.2', '3.2', '3.5')] 
Page = [('1', '1', '3'), ('1', '2', '2', '2'), ('1', '2', '3', '5')]
Titles = [('General', 'Info', 'Titles'), ('More', 'Info', 'Section', 'Here'), ('Another', 'List', 'Of', 'Strings')]

# Flat a list of tuples into a list
l1 = [item for sublist in Section for item in sublist]
l2 = [item for sublist in Page for item in sublist]
l3 = [item for sublist in Titles for item in sublist]

# Python2, `zip` returns a list of tuples
#result = zip(*sorted(zip(l1, l2, l3), key=lambda x:float(x[0])))

# Python3, `zip` returns an iterator of tuples
result = list(zip(*sorted(zip(l1, l2, l3), key=lambda x:float(x[0]))))

print(result)
# Output
[   ('1', '1', '1', '1.1', '1.2', '1.2', '2', '2.2', '3', '3.2', '3.5'), 
    ('1', '1', '1', '1', '3', '2', '2', '2', '2', '3', '5'), 
    ('General', 'More', 'Another', 'Info', 'Titles', 'List', 'Info', 'Section', 'Here', 'Of', 'Strings')]