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Exercises

23 二月, 2015 - 16:16

Exercise 6.5 Take the following Python code that stores a string:‘

str = 'X-DSPAM-Confidence:0.8475'

Use find and string slicing to extract the portion of the string after the colon character and then use the float function to convert the extracted string into a floating point number.

Exercise 6.6 Read the documentation of the string methods at docs.python.org.lib/string-methods.html.You might want to experiment with some of them to make sure you understand how they work. strip and replace are particularly useful.

The documentation uses a syntax that might be confusing. For example, in find(sub[, start[, end]]), the brackets indicate optional arguments. So sub is required, but start is optional, and if you include start, then end is optional.