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ending: the email must end with a (.com) or (.ca) (case sensiti

ending: the email must end with a (.com) or (.ca) (case sensiti

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Do not add any imports, the ones that you need will be given to you.
Do not use try-except statements, you should be able to anticipate
or prevent any errors from happening at all!

ending: the email must end with a (.com) or (.ca) (case sensitive) Note: you must not use any loops (for, while) here. We want you to just use the re library for this function. >>> find_email('12345a_test_email@165265365.com!') 'a_test_email@165265365.com' pass
Transcribed Image Text:ending: the email must end with a (.com) or (.ca) (case sensitive) Note: you must not use any loops (for, while) here. We want you to just use the re library for this function. >>> find_email('12345a_test_email@165265365.com!') 'a_test_email@165265365.com' pass
def find email(s: str) -> str: Given a string <s>, return the email that exists in the string. Preconditions: <s> contains at most 1 email, or none at all. If <s> does not contain an email, return the empty string. Email definition: An email address is defined as 'name@domain.com' or 'name@domain.ca' with the following specifications: name: the name is an alphanumeric string that is less than or equal to 12 characters. Additional characters allowed are dash (-), period (.) and underscore (_). But the email cannot start or end with these additional characters. The name must also be at least 1 character long. Example names: ab a_b A__B..C--D 1nt3r3st.1ng domain: the domain is strictly numerical, and the number must be divisible by 5. the length of the domain is unrestricted. Example domains: 984125
Transcribed Image Text:def find email(s: str) -> str: Given a string <s>, return the email that exists in the string. Preconditions: <s> contains at most 1 email, or none at all. If <s> does not contain an email, return the empty string. Email definition: An email address is defined as 'name@domain.com' or 'name@domain.ca' with the following specifications: name: the name is an alphanumeric string that is less than or equal to 12 characters. Additional characters allowed are dash (-), period (.) and underscore (_). But the email cannot start or end with these additional characters. The name must also be at least 1 character long. Example names: ab a_b A__B..C--D 1nt3r3st.1ng domain: the domain is strictly numerical, and the number must be divisible by 5. the length of the domain is unrestricted. Example domains: 984125
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