Difference: REPLAndStandardPythonProgramming (2 vs. 3)

Revision 32020-05-04 - UliRaich

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META TOPICPARENT	name="Exercises"

Course on Internet of Things

Exercises Session 1:

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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:

Added:

>
>

Input	ok or not ok
5.3+4.7	ok
5.3++4.7	not ok
5..3 + 4.7	not ok
.3+.7	ok
5.3+4b7	not ok
empty string	not ok
5.3+.	not ok
5.3 + 4	ok

Deleted:

<
<

5.3+4.7 ok
5.3++4.7 not ok
5..3 + 4.7 not ok
.3+.7 ok
5.3+4b7 not ok

Exercise 3:

Changed:

<
<

Like in exercise2, start with 2 number a,b with values 5 and 3. In your program check which of the 2 numbers is bigger and print the result. Then ask the user for 2 integer numbers. Make sure he enters 2 correct numbers and capture possible errors. This is a typical output:

>
>

Like in exercise2, start with 2 numbers a,b with values 5 and 3. In your program check which of the 2 numbers is bigger and print the result.

Then improve the program asking the user for 2 integer numbers. Make sure he enters 2 correct numbers and capture possible errors. This is a typical output:

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