Exercise 1: Write a Python program that reads from an input files temps.txt city names and temperatures averages for the last 3 months and displays the following information: • The city names and their 3-month average temperature • The average temperature of all the cities • The highest temperature and its city name • The city names and temperatures for the cities with temperature above the average temperature

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Chapter1: Introduction
Section: Chapter Questions
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Exercise 1: Write a Python program that reads from an input files temps.txt city names and
temperatures averages for the last 3 months and displays the following information:
• The city names and their 3-month average temperature
• The average temperature of all the cities
• The highest temperature and its city name
• The city names and temperatures for the cities with temperature above the average
temperature
The following is an example of the contents of temps.txt:
Muscat : 35 : 33 : 40
Nizwa : 40 : 42 : 41 :
Sur : 45 : 47 : 40
Rustaq : 45: 44 : b4
Salalah : 28 : 20 : 17
Sohar : 38 : 39 : 41
Sample input file temps.txt
Error: Wrong content in Nizwa : 40 : 42 : 41 :
Error: Invalid temperature value in Rustaq : 45 : 44 : b4
City
Temp Avg
====
========
Muscat
Sur
36.00
44.00
Salalah
21.67
Sohar
39.33
The average temperature is 35.25
The highest temperature is 44.00 recorded in Sur
Cities with temperature above the average:
City
Temp Avg
====
========
Muscat
36.00
Sur
44.00
Sohar
39.33
Sample Run
Your program must define and use the following functions only:
1. readFile(): reads the city names and temperatures from the input file and stores
the names and temperature averages into two lists cities and tempAvg.
2. findAverage(): returns the average temperature of the list passed as an
argument.
3. findMaxTempPos (): returns the position of the highest temperatures in the list.
4. displayResults(): displays the output shown in the above sample run.
Note:
All the displays should be done in displayResults() function.
• Use Exception handling when reading data
Transcribed Image Text:Exercise 1: Write a Python program that reads from an input files temps.txt city names and temperatures averages for the last 3 months and displays the following information: • The city names and their 3-month average temperature • The average temperature of all the cities • The highest temperature and its city name • The city names and temperatures for the cities with temperature above the average temperature The following is an example of the contents of temps.txt: Muscat : 35 : 33 : 40 Nizwa : 40 : 42 : 41 : Sur : 45 : 47 : 40 Rustaq : 45: 44 : b4 Salalah : 28 : 20 : 17 Sohar : 38 : 39 : 41 Sample input file temps.txt Error: Wrong content in Nizwa : 40 : 42 : 41 : Error: Invalid temperature value in Rustaq : 45 : 44 : b4 City Temp Avg ==== ======== Muscat Sur 36.00 44.00 Salalah 21.67 Sohar 39.33 The average temperature is 35.25 The highest temperature is 44.00 recorded in Sur Cities with temperature above the average: City Temp Avg ==== ======== Muscat 36.00 Sur 44.00 Sohar 39.33 Sample Run Your program must define and use the following functions only: 1. readFile(): reads the city names and temperatures from the input file and stores the names and temperature averages into two lists cities and tempAvg. 2. findAverage(): returns the average temperature of the list passed as an argument. 3. findMaxTempPos (): returns the position of the highest temperatures in the list. 4. displayResults(): displays the output shown in the above sample run. Note: All the displays should be done in displayResults() function. • Use Exception handling when reading data
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