I have a dictionary
a = {'a':[1,2,3],'b':[4,5,6]}
Now, I wish to convert it into a list of lists such that
[[1,4],[2,5],[3,6]]
i.e. the 1st element of every key-value pair grouped together, every 2nd element grouped together & likewise. Also, number of keys isn't restricted to 2 & can be 'n'