Python download file exception

Raised when the result of an arithmetic operation is too large to be represented. This cannot occur for integers which would rather raise MemoryError than give up. However, for historical reasons, OverflowError is sometimes raised for integers that are outside a required range. Because of the lack of standardization of floating point exception handling in C, most floating point operations are not checked. It is raised when the interpreter detects that the maximum recursion depth see sys.

New in version 3. This exception is raised when a weak reference proxy, created by the weakref. For more information on weak references, see the weakref module. The associated value is a string indicating what precisely went wrong. The exception object has a single attribute value , which is given as an argument when constructing the exception, and defaults to None.

When a generator or coroutine function returns, a new StopIteration instance is raised, and the value returned by the function is used as the value parameter to the constructor of the exception. Raised when the parser encounters a syntax error. This may occur in an import statement, in a call to the built-in functions compile , exec , or eval , or when reading the initial script or standard input also interactively.

The str of the exception instance returns only the error message. Details is a tuple whose members are also available as separate attributes. Which line number in the file the error occurred in. This is 1-indexed: the first line in the file has a lineno of 1. The column in the line where the error occurred. This is 1-indexed: the first character in the line has an offset of 1. Which line number in the file the error occurred ends in.

The column in the end line where the error occurred finishes. Base class for syntax errors related to incorrect indentation. This is a subclass of SyntaxError. Raised when indentation contains an inconsistent use of tabs and spaces. This is a subclass of IndentationError. Raised when the interpreter finds an internal error, but the situation does not look so serious to cause it to abandon all hope. The associated value is a string indicating what went wrong in low-level terms.

You should report this to the author or maintainer of your Python interpreter. Be sure to report the version of the Python interpreter sys. This exception is raised by the sys. It inherits from BaseException instead of Exception so that it is not accidentally caught by code that catches Exception. This allows the exception to properly propagate up and cause the interpreter to exit. When it is not handled, the Python interpreter exits; no stack traceback is printed.

The constructor accepts the same optional argument passed to sys. A call to sys. The os. The exit status or error message that is passed to the constructor. Defaults to None. Raised when an operation or function is applied to an object of inappropriate type.

The associated value is a string giving details about the type mismatch. This exception may be raised by user code to indicate that an attempted operation on an object is not supported, and is not meant to be. If an object is meant to support a given operation but has not yet provided an implementation, NotImplementedError is the proper exception to raise. Passing arguments of the wrong type e. Raised when a reference is made to a local variable in a function or method, but no value has been bound to that variable.

This is a subclass of NameError. Raised when a Unicode-related encoding or decoding error occurs. It is a subclass of ValueError. UnicodeError has attributes that describe the encoding or decoding error. For example, err. The first index of invalid data in object. The index after the last invalid data in object.

Raised when a Unicode-related error occurs during encoding. It is a subclass of UnicodeError. Raised when a Unicode-related error occurs during decoding. Raised when a Unicode-related error occurs during translating. History 0. Project details Project links Homepage. Download files Download the file for your platform. Files for exception, version 0.

Close Hashes for exception File type Wheel. Python version 2. Upload date Jun 16, Hashes View. File type Source. This kind of a try-except statement catches all the exceptions that occur. Using this kind of try-except statement is not considered a good programming practice though, because it catches all exceptions but does not make the programmer identify the root cause of the problem that may occur.

You can use a finally: block along with a try: block. The finally block is a place to put any code that must execute, whether the try-block raised an exception or not.

When an exception is thrown in the try block, the execution immediately passes to the finally block. After all the statements in the finally block are executed, the exception is raised again and is handled in the except statements if present in the next higher layer of the try-except statement.

An exception can have an argument , which is a value that gives additional information about the problem.

The contents of the argument vary by exception. If you write the code to handle a single exception, you can have a variable follow the name of the exception in the except statement. If you are trapping multiple exceptions, you can have a variable follow the tuple of the exception.

This variable receives the value of the exception mostly containing the cause of the exception. The variable can receive a single value or multiple values in the form of a tuple. This tuple usually contains the error string, the error number, and an error location. You can raise exceptions in several ways by using the raise statement. The general syntax for the raise statement is as follows. Here, Exception is the type of exception for example, NameError and argument is a value for the exception argument.

The argument is optional; if not supplied, the exception argument is None. The final argument, traceback, is also optional and rarely used in practice , and if present, is the traceback object used for the exception. An exception can be a string, a class or an object. Most of the exceptions that the Python core raises are classes, with an argument that is an instance of the class.

Note: In order to catch an exception, an "except" clause must refer to the same exception thrown either class object or simple string. Python also allows you to create your own exceptions by deriving classes from the standard built-in exceptions.

Here is an example related to RuntimeError. Here, a class is created that is subclassed from RuntimeError.