Tuples and Lists. What is the value in having both immutable sequences
(tuples) and mutable sequences
(lists)? What are the circumstances under
which you would want to change a string?
What are the problems associated with
strings that grow in length? How can
storage for variable length strings be
Unicode Strings. What is the value in making a distinction between Unicode
strings and ASCII strings? Does it improve performance to restrict
a string to single-byte characters? Should
all strings simply be Unicode strings to make programs simpler?
How should file reading and writing be handled?
Statements and Data Structures. In order to introduce the for statement
in the section called “Iterative Processing: For All and There Exists”, we had to dance around the
sequence issue. Would it make more sense to introduce the various
sequence data structures first, and then describe statements that
process the data structure later?
Something has to be covered first, and is therefore more
fundamental. Is the processing statement more fundamental to
programming, or is the data structure?
Overview of Sequences
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