Difference: REPLAndStandardPythonProgramming (8 vs. 9)

Revision 92020-05-28 - UliRaich

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META TOPICPARENT	name="Exercises"

Course on Internet of Things

Exercises Session 1:

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If you use integer format when printing the result, you will see the result truncated to an integer. Can you correct changing the format?

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https://afnog.iotworkshop.africa/pub/IoT_Course_English/REPLAndStandardPythonProgramming/calculatorV1.py.txt

Improve this program asking the user to enter 2 real numbers (floats) separated by a space. This is how it should look like:

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when the user mistypes and enters something that is not a real number, can you capture the error and simply ask the user to repeat his input, until you get 2 correct floating point numbers?

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https://afnog.iotworkshop.africa/pub/IoT_Course_English/REPLAndStandardPythonProgramming/calculatorV2.py.txt

Bonus points: Writing a parser for user input is rather easy if the numbers and operator are separated by spaces (have a look at the split method of strings). It is quite a bit more tricky if you allow entering calculations without spaces between the operands and the operator. Can you write a parser accomplishing this?

Try your parser on this input:

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5.3+.	not ok
5.3+	not ok

Try also several spaces in between operands and operator.

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https://afnog.iotworkshop.africa/pub/IoT_Course_English/REPLAndStandardPythonProgramming/calculatorV3.py.txt

Exercise 3: Conditions

Like in exercise2, start with 2 numbers a,b with values 5 and 7. In your program check which of the 2 numbers is bigger and print the result.

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