Python/Exceptions - Revision history

Admin at 17:39, 29 March 2019

2019-03-29T17:39:44Z

← Older revision		Revision as of 17:39, 29 March 2019
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	~~Class exceptions:~~

	==Abstract exception class==		==Abstract exception class==

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	return x		return x
	</pre>		</pre>


			==Links==

			Exceptions are the anti-pattern: https://sobolevn.me/2019/02/python-exceptions-considered-an-antipattern

Admin at 15:32, 11 September 2018

2018-09-11T15:32:56Z

@@ Line 1: / Line 1: @@
 Class exceptions:
-==Abstract datatype example - exceptions following specifications==
+==Abstract exception class==
-The case of exception handling for an abstract data type like a stack is pretty clear-cut: there are two explicit error cases that it should handle, both when items are requested and the stack is empty. To raise these exceptions, we just do a variation of <code>raise Exception("oops")</code>:
+To raise your own custom Exception type, it's really easy to define a new Exception with a custom name:
 <pre>
-class Empty(Exception):
+class MyNewException(Exception):
      pass
 </pre>
-Done. Now we can do <code>raise Empty("oops, empty stack")</code>.
+Done. Now we can do <code>raise MyNewException("Oh no!")</code>:
 [[Category:CS]]
 [[Category:Python]]
 [[Category:Exceptions]]

Admin at 05:41, 30 May 2017

2017-05-30T05:41:17Z

← Older revision		Revision as of 05:41, 30 May 2017
Line 1:		Line 1:
	Class exceptions:		Class exceptions:

	==Abstract datatype example==		==Abstract datatype example - exceptions following specifications==

	The case of exception handling for an abstract data type like a stack is pretty clear-cut: there are two explicit error cases that it should handle, both when items are requested and the stack is empty. To raise these exceptions, we just do a variation of <code>raise Exception("oops")</code>:		The case of exception handling for an abstract data type like a stack is pretty clear-cut: there are two explicit error cases that it should handle, both when items are requested and the stack is empty. To raise these exceptions, we just do a variation of <code>raise Exception("oops")</code>:
Line 13:		Line 13:

	See [[StacksQueues/Python/ArrayStack#Class_implementation]]		See [[StacksQueues/Python/ArrayStack#Class_implementation]]


			[[Category:CS]]
			[[Category:Python]]
			[[Category:Exceptions]]

Admin: Created page with "Class exceptions: ==Abstract datatype example== The case of exception handling for an abstract data type like a stack is pretty clear-cut: there are two explicit error case..."

2017-05-30T05:40:44Z

Created page with "Class exceptions: ==Abstract datatype example== The case of exception handling for an abstract data type like a stack is pretty clear-cut: there are two explicit error case..."

New page

Class exceptions:

==Abstract datatype example==

The case of exception handling for an abstract data type like a stack is pretty clear-cut: there are two explicit error cases that it should handle, both when items are requested and the stack is empty. To raise these exceptions, we just do a variation of <code>raise Exception("oops")</code>:

<pre>
class Empty(Exception):
pass
</pre>

Done. Now we can do <code>raise Empty("oops, empty stack")</code>.

See [[StacksQueues/Python/ArrayStack#Class_implementation]]