How does Python sort a list of tuples?

Question

Empirically, it seems that Python\'s default list sorter, when passed a list of tuples, will sort by the first element in each tuple. Is that correct? If not, what\'s the ri

Answer 1

Yes, this is the default. In fact, this is the basis of the classic "DSU" (Decorate-Sort-Undecorate) idiom in Python. See Code Like a Pythonista.