Dictionaries & Sets
[Pages:72]+
Dictionaries & Sets
Introduction to Programming - Python
+ Agenda
Week of 4/19
n Days 19 ? Class Notes ? Posted n Reading: Gaddis ? Chapter 9 n Final Exam ? Monday, May 16th, 6 ? 7:50 PM n Dictionaries n Sets n Object Serialization
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Altimeter Chart for Ingenuity's First Flight
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Review
+ Unpacking Strings to Lists
input_string = """Name,Phone,Address Mike Smith,15554218841,123 Nice St, Roy, NM, USA Anita Hernandez,15557789941,425 Sunny St, New York, NY, USA Guido van Rossum,315558730,Science Park 123, 1098 XG Amsterdam, NL"""
def get_phone_info(str2_unsplit): # input: string of names, phone nos. and addresses # get name and phone number of each person # output: list of lists of people and phone numbers results = [] # get the first name and phone number # what goes into the for loop? for line in ... : # how do we get only the name and phone number? results.append(...) return results
print(get_phone_info(input_string))
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+ Reading Data from Files
""" Imagine file contents in 'philosophers.txt': 'John Locke\nDavid Hume\nEdmund Burke\n' """ philosophers_file = open('philosophers.txt') # read each line and print the philosopher's name philosophers_file.close()
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