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Exchange Rate Conversion answer
Conditionals and Loops example from a Well House Consultants training course
More on Conditionals and Loops [link]

This example is described in the following article(s):
   • Python - fresh examples of all the fundamentals - [link]

Source code: bp Module: Y103

""" 1. You have 100 Singapore dollars, and the exchange
rate is 1 dollar = 37 pence.

Produce a table of exchange rates, showing how 0, 10, 20
(and so on) up to 100 Singapore dollars convert to pounds.

2. In Singapore, a teapot costs 75 dollars. Modify the
previous examples to report an extra output on the end of
each line saying either "You can't afford a teapot" or
"You can afford a teapot and will have xxxxx change" """


current = 0

while current <= 100:
        pounds = current * 0.37
        if current < 75:
                afford = "You can't afford it"
                change = ""
        else:
                change = current - 75
                afford = "Granny will get a prezzie - change "+str(change)

        # Following line gets brackets right in Python 2
        # print current, pounds, afford, change

        # Following line is right in Python 3 and a bit messy printing in Python 2
        # print(current, pounds, afford, change)

        # Following line woks well in both
        print("{} {} {} {}".format(current, pounds, afford, change))

        current += 10

""" Sample Output

WomanWithCat:y103 grahamellis$ python3 bp
0 0.0 You can't afford it
10 3.7 You can't afford it
20 7.4 You can't afford it
30 11.1 You can't afford it
40 14.8 You can't afford it
50 18.5 You can't afford it
60 22.2 You can't afford it
70 25.9 You can't afford it
80 29.6 Granny will get a prezzie - change 5 5
90 33.3 Granny will get a prezzie - change 15 15
100 37.0 Granny will get a prezzie - change 25 25
WomanWithCat:y103 grahamellis$ python2 bp
0 0.0 You can't afford it
10 3.7 You can't afford it
20 7.4 You can't afford it
30 11.1 You can't afford it
40 14.8 You can't afford it
50 18.5 You can't afford it
60 22.2 You can't afford it
70 25.9 You can't afford it
80 29.6 Granny will get a prezzie - change 5 5
90 33.3 Granny will get a prezzie - change 15 15
100 37.0 Granny will get a prezzie - change 25 25
WomanWithCat:y103 grahamellis$

"""

Learn about this subject
This module and example are covered on the following public courses:
 * Learning to program in Python
 * Python Programming
Also available on on site courses for larger groups

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Other Examples
This example comes from our "Conditionals and Loops" training module. You'll find a description of the topic and some other closely related examples on the "Conditionals and Loops" module index page.

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