ch03.rst2 error in section "Accessing Individual Characters"

[Kester00]

There is an unexplained header found in subsection "Accessing Individual Characters", with the message below:
[sb] | explain this tuple unpacking somewhere?

Recommended fix:
Explain to readers that the tuples in the FreqDist are expressed in the form (char, count) and that the list comprehension [char for (char, count) in fdist.most_common()] extracts a list the alphabet characters and orders them in decreasing frequency.

[goodmami]

@Kester00 I'm not certain, but I think the request is more about explaining how unpacking works than about iteration over FreqDist. That is, how for (char, count) in fdist.most_common() assigns values to both char and count. This could be explained in Chapter 1, sections 2.3 (regarding assignment) and 4.3 (regarding for-loops). If this is the first time unpacking is used in the book, it also wouldn't be bad to explain as you suggest.