Changes

Jump to: navigation, search

OPS435 Python Lab 5

40 bytes added, 11:01, 5 September 2017
PART 1 - Handling Errors
::#Issue the following to create an exception error:<source lang="python">
print('5' + 10)
</source>::#Immediately <br><br>You should get an exception error similar to the following error occurs:<source lang="python">
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
TypeError: Can't convert 'int' object to str implicitly
</source><br><br>'''Question: ''' According to the exception error message, what do you think caused the error?<br><br>
::#Firstly, what to look for here is the exception name '[https://docs.python.org/3/library/exceptions.html#TypeError TypeError.]' The Type error means a mismatch of a type(string, int, float, list, etc). Python doesn't know how to handle it, should it change the number into a string or change the string into a number?
::#If we want to write this program safely, we can catch this error while it's happening. This is done with a specific block of code called a [https://docs.python.org/3/tutorial/errors.html#handling-exceptions try clause] where you place code inbetween the '''try:''' and ''''except:'''. If no error occurs in the code the except portion will be skipped.
13,420
edits

Navigation menu