Chapter 6: Text & Bytes (Review Questions)¶
Essay Questions¶
Answer the following questions briefly!
Q1: In what sense is a "string" of characters a sequence? What is a sequence after all? A concrete data type, or something else?
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Q2: What is a direct consequence of the str type's property of being an ordered sequence? What operations could we not do with it if it were unordered?
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Q3: What does it mean for an object to be immutable? Discuss how we can verify the str type's immutability by comparing the two variables example and full_slice below. Are they pointing to the same object in memory?
example = "text"
full_slice = example[:]
Hint: Find out what [:] does first!
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Q4: Describe in your own words what we mean by string interpolation!
< your answer >
True / False Questions¶
Motivate your answer with one short sentence!
Q5: Triple-double quotes """ and triple-single quotes ''' create a new object of type text that models so-called multi-line strings.
< your answer >
Q6: A substring is a string that subsumes another string.
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Q7: Indexing into a str object with a negative index fails silently: It does neither raise an error nor do anything useful.
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Q8: We cannot assign a different character to an index or slice of a str object because it is immutable.
< your answer >