CSC111 Homework 12 2015b

--D. Thiebaut (talk) 17:56, 2 December 2015 (EST)

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Your assignment is due on the last day of class, 12/15/15, at 11:55 p.m.

Your Assignment

• Download this file: AllUKTemperatures.zip
• Save the file in a folder where you will be developing your program.
• Unzip the zip file. You should get 37 text files. You should recognize one of them as a file we have played with before.
• Store the (undocumented) Python program below in the same folder. It will access all the files and display some statistics about them (and it is a good seed for the program you have to write for this assignment):

# seedHw12.py
# D. Thiebaut
# reads several temperature files from the U.K. and displays
# some statistics about each one.
temp = [ ('Aberporth', 'aberporthdata.txt'),
         ('Armagh', 'armaghdata.txt'),
         ('Ballypatrick Forest', 'ballypatrickdata.txt'),
         ('Bradford', 'bradforddata.txt'),
         ('Braemar', 'braemardata.txt'),
         ('Camborne', 'cambornedata.txt'),
         ('Cambridge NIAB', 'cambridgedata.txt'),
         ('Cardiff Bute Park', 'cardiffdata.txt'),
         ('Chivenor', 'chivenordata.txt'),
         ('Cwmystwyth', 'cwmystwythdata.txt'),
         ('Dunstaffnage', 'dunstaffnagedata.txt'),
         ('Durham', 'durhamdata.txt'),
         ('Eastbourne', 'eastbournedata.txt'),
         ('Eskdalemuir', 'eskdalemuirdata.txt'),
         ('Heathrow', 'heathrowdata.txt'),
         ('Hurn', 'hurndata.txt'),
         ('Lerwick', 'lerwickdata.txt'),
         ('Leuchars', 'leucharsdata.txt'),
         ('Lowestoft',  'lowestoftdata.txt'),
         ('Manston', 'manstondata.txt'),
         ('Nairn', 'nairndata.txt'),
         ('Newton Rigg',  'newtonriggdata.txt'),
         ('Oxford', 'oxforddata.txt'),
         ('Paisley', 'paisleydata.txt'),
         ('Ringway', 'ringwaydata.txt'),
         ('Ross-on-Wye', 'rossonwyedata.txt'),
         ('Shawbury', 'shawburydata.txt'),
         ('Sheffield', 'sheffielddata.txt'),
         ('Southampton', 'southamptondata.txt'),
         ('Stornoway Airport',  'stornowaydata.txt'),
         ('Sutton Bonington', 'suttonboningtondata.txt'),
         ('Tiree', 'tireedata.txt'),
         ('Valley',  'valleydata.txt'),
         ('Waddington', 'waddingtondata.txt'),
         ('Whitby', 'whitbydata.txt'),
         ('Wick Airport',  'wickairportdata.txt'),
         ('Yeovilton', 'yeoviltondata.txt') ]

def getStats():
    """ displays the name of each file, followed by the number of lines
    in each one.
    """
    print( "    {0:20}: Number of lines".format( "UK City" ) )
    count = 1
    for pair in temp :
        name = pair[0]
        fileName = pair[1]
        file = open( fileName, 'r' )
        print( "{0:2}: {1:20}:  {2:5} lines" . format( count, name, len( file.readlines() ) ) )
        count += 1
        file.close()

def main():
    getStats()

main()

• Run the program. You should get an output of this form:

                 UK City: Number of lines
 1:            Aberporth:    876 lines
 2:               Armagh:   1932 lines
 3:  Ballypatrick Forest:    630 lines
 4:             Bradford:   1272 lines
 5:              Braemar:    660 lines
 6:             Camborne:    424 lines
 7:       Cambridge NIAB:    660 lines
 8:    Cardiff Bute Park:    436 lines
 9:             Chivenor:    696 lines
10:           Cwmystwyth:    626 lines
11:         Dunstaffnage:    511 lines
12:               Durham:   1608 lines
13:           Eastbourne:    660 lines
14:          Eskdalemuir:   1236 lines
15:             Heathrow:    792 lines
16:                 Hurn:    684 lines
17:              Lerwick:    997 lines
18:             Leuchars:    684 lines
19:            Lowestoft:   1188 lines
20:              Manston:    870 lines
21:                Nairn:    996 lines
22:          Newton Rigg:    660 lines
23:               Oxford:   1932 lines
24:              Paisley:    660 lines
25:              Ringway:    714 lines
26:          Ross-on-Wye:    997 lines
27:             Shawbury:    816 lines
28:            Sheffield:   1572 lines
29:          Southampton:   1751 lines
30:    Stornoway Airport:   1686 lines
31:     Sutton Bonington:    660 lines
32:                Tiree:   1032 lines
33:               Valley:    997 lines
34:           Waddington:    804 lines
35:               Whitby:    628 lines
36:         Wick Airport:   1200 lines
37:            Yeovilton:    592 lines

Question

Write a program called hw12.py that will read these files (you can modify these original files for debugging, but your submitted program will be tested with copies of my originals) and prompt the user for a year and a month (on 2 separate lines, year first, month second) and will output the city in the UK that got the most amount of rain for this year-month combination.

Here are some examples:

>>> ================================ RESTART ================================
>>> 
please enter year: 2000
please enter month: 1
-*-
245.4 Dunstaffnage

>>> ================================ RESTART ================================
>>> 
please enter year: 1940
please enter month: 12
-*-
187.5 Eskdalemuir

>>> ================================ RESTART ================================
>>> 
please enter year: 1900's
Invalid year, please try again!
please enter year: hello?
Invalid year, please try again!
please enter year: 2000
please enter month: january
Invalid month, please try again! 
please enter month: 20
Invalid month, please try again!
please enter month: 1
-*-
245.4 Dunstaffnage

>>> ================================ RESTART ================================
>>> 
please enter year: 2020
please enter month: 1
-*-

Requirements

• Your program should prompt for the year first, and the month second.
• Your program should allow years that are only integers. It is acceptable for the year to be outside the range of years found in the data files.
• Your program should accept only month that are numbers in the range 1 to 12.
• Your program should output a "-*-" after the successful input of the year and month (Thanks to Dave Marshall for figuring out this neat trick to easily separate input from output).
• Your program should not crash if the year entered is not found in the files. In this case there is no output after the -*- string.
• Your program should output the rain data (largest amount of rain recorded) and the city where this record was measured.

Moodle Submission

• Submit your program in the HW 12 PB 1 section, on Moodle.

Question 2

Make your program also output the city that experienced the biggest difference in tmax-tmin temperature since 2000, included.
Your program should output

1. A title clearly indicating Question 2 in it.
2. the city
3. the year
4. the month (expressed as January, February, ... December)
5. the largest difference observed

Question 3

Make your program output all the city names sorted by year when a temperature recording was first made for them. For example, the first temperature recording for Armagh was in 1865. The first temperature recording for Sheffield was in 1883. Therefore Armagh should be listed before Sheffield in your output.
Your program should output a title clearly indicating Question 3 in it, followed by the list of cities in two columns, the first column containing the years, the second the city names. The city names are all aligned, one above each other:

Question 3
==========
Year  City
...
1865  Armagh
...
1883  Sheffield
...

Grading

• Documentation, style, and readability: 20 points
• Organization into functions, passing of parameters: 20 points
• Correct output: 20+20+20 points

Submission

Submit your program to this URL: http://cs.smith.edu/~thiebaut/111b/submit13.php