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This module never needs to be imported explicitly: the exceptions are provided in the built-in namespace type error python as well as the exceptions module. For class exceptions,
Python 3 Exceptions
in a try statement with an except clause that mentions a particular class, python filenotfounderror that clause also handles any exception classes derived from that class (but not exception classes from which it is derived). Two exception classes that are python custom exception not related via subclassing are never equivalent, even if they have the same name. The built-in exceptions listed below can be generated by the interpreter or built-in functions. Except where mentioned, they have an "associated value" indicating the detailed cause of the error. This may be a string or a
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tuple containing several items of information (e.g., an error code and a string explaining the code). The associated value is the second argument to the raise statement. If the exception class is derived from the standard root class BaseException, the associated value is present as the exception instance's args attribute. User code can raise built-in exceptions. This can be used to test an exception handler or to report an error condition "just like" the situation in which the interpreter raises the same exception; but beware that there is nothing to prevent user code from raising an inappropriate error. The built-in exception classes can be subclassed to define new exceptions; programmers are encouraged to derive new exceptions from the Exception class or one of its subclasses, and not from BaseException. More information on defining exceptions is available in the Python Tutorial under User-defined Exceptions. Th
a try statement with an except clause that mentions a particular class, that clause also handles any exception classes derived from that python exception message class (but not exception classes from which it is derived). Two exception python exception class methods classes that are not related via subclassing are never equivalent, even if they have the same name. The
Indexerror List Index Out Of Range Python Error
built-in exceptions listed below can be generated by the interpreter or built-in functions. Except where mentioned, they have an "associated value" indicating the detailed cause of the error. This may https://docs.python.org/2/library/exceptions.html be a string or a tuple of several items of information (e.g., an error code and a string explaining the code). The associated value is usually passed as arguments to the exception class's constructor. User code can raise built-in exceptions. This can be used to test an exception handler or to report an error condition "just like" the situation in which https://docs.python.org/3/library/exceptions.html the interpreter raises the same exception; but beware that there is nothing to prevent user code from raising an inappropriate error. The built-in exception classes can be subclassed to define new exceptions; programmers are encouraged to derive new exceptions from the Exception class or one of its subclasses, and not from BaseException. More information on defining exceptions is available in the Python Tutorial under User-defined Exceptions. When raising (or re-raising) an exception in an except or finally clause __context__ is automatically set to the last exception caught; if the new exception is not handled the traceback that is eventually displayed will include the originating exception(s) and the final exception. When raising a new exception (rather than using a bare raise to re-raise the exception currently being handled), the implicit exception context can be supplemented with an explicit cause by using from with raise: raise new_exc from original_exc The expression following from must be an exception or None. It will be set as __cause__ on the raised exception. Setting here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business http://stackoverflow.com/questions/16005707/index-error-list-index-out-of-range-python Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation https://ruby-doc.org/core-2.1.1/IndexError.html Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Index Error: list index out of range (Python) [duplicate] up vote 3 down vote favorite 2 This question already has an answer here: IndexError: python exception list index out of range and python 5 answers I am a beginner programmer and im not sure what this means... Index Error: list index out of range python indexing share|improve this question asked Apr 14 '13 at 23:52 user2280738 36112 marked as duplicate by jgritty, greg-449, Bojan Petkovski, Luc M, Mark Rotteveel Nov 1 '14 at 15:09 This question has been asked before and already has an answer. If those answers do not fully type error python address your question, please ask a new question. It sounds like you are trying to access an element outside the range of the list. What code is causing this error? –Bill Cheatham Apr 14 '13 at 23:53 1 Paste your code so we can help solve your problem –erdekhayser Apr 14 '13 at 23:56 add a comment| 1 Answer 1 active oldest votes up vote 13 down vote Generally it means that you are providing an index for which a list element does not exist. E.g, if your list was [1, 3, 5, 7], and you asked for the element at index 10, you would be well out of bounds and receive an error, as only elements 0 through 3 exist. share|improve this answer answered Apr 14 '13 at 23:54 phoebus 9,70722330 add a comment| Not the answer you're looking for? Browse other questions tagged python indexing or ask your own question. asked 3 years ago viewed 118989 times active 3 years ago Blog Stack Overflow Podcast #91 - Can You Stump Nick Craver? 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IndexError Raised when the given index is invalid. a = [:foo, :bar] a.fetch(0) #=> :foo a[4] #=> nil a.fetch(4) #=> IndexError: index 4 outside of array bounds: -2...2 Commenting is here to help enhance the documentation. For example, code samples, or clarification of the documentation. If you have questions about Ruby or the documentation, please post to one of the Ruby mailing lists.