Thursday, December 4, 2014

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1.       How many characters are in this sentence? Does it matter whether Python is storing the string as one byte per character or four bytes per character?

41 characters. Yes becuase unicode uses four bytes per character, and ASCII uses one byte per character. unicode offers a wider range of characters.

2.      This question asks you about something you have not learned. In fact, the question is asking about details that go beyond what you will learn in this course. However, wondering what is going on at a lower level of abstraction – and talking about it – can be a useful strategy when learning about computing.

Describe what you think occurs in memory when the following code is executed.

In []: a = 'one string'
In []: b = 'another'
In []: c = a[:3] + ' and ' + b
In []: print(c[6:10])
a is stored, and b is stored. c is stored as 'one' from a, a new part; ' and ' and b. then the print command calls c, but only characters 6 through 10; "d an"

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