Change to port = int(raw_input("Enter port: ")) share|improve this answer answered Sep 28 '10 at 6:41 Manoj Govindan 35.1k1393101 Thanks. Is it safe for a CR2032 coin cell to be in an oven? for example like this: month = '12' try: month = int(month) except ValueError: print('bad argument for month') raise else: if not 1<= month <= 12: raise ValueError('month should be between 1 The variable is bound to an exception instance with the arguments stored in instance.args. this content
If no exception occurs, the except clause is skipped and execution of the try statement is finished. This applies only to unqualified names. In user defined base classes, abstract methods should raise this exception when they require derived classes to override the method. Not the answer you're looking for? https://docs.python.org/2.7/tutorial/errors.html
Standard exception names are built-in identifiers (not reserved keywords). except Exception as inst: ... That was no valid number. Python Exception Stack Trace For example: >>> raise NameError('HiThere') Traceback (most recent call last): File "
Last updated on Sep 30, 2016. Python Exception Message Maybe you can tell us why you have to catch such syntax errors. The rest of the line provides detail based on the type of exception and what caused it. New in version 2.0. exception UnicodeEncodeError¶ Raised when a Unicode-related error occurs during encoding.
Non payment on (Phone) Handset Lease What's the difference between `su -` and `su --login`? Python Print Exception Changed in version 2.5: Previous versions put the GetLastError() codes into errno. Built-in Exceptions lists the built-in exceptions and their meanings. 8.3. Counterintuitive polarizing filters Can you move a levitating target 120 feet in a single action?
My exception occurred, value: 4 >>> raise MyError('oops!') Traceback (most recent call last): File "
Look at the following example, which tries to open a file and print its contents to the screen. news It is a subclass of ValueError. UnicodeError has attributes that describe the encoding or decoding error. Nested apply function at a list What is the purpose of diodes in flip-dot displays? Browse other questions tagged python error-handling or ask your own question. Python Raise Valueerror
For example: >>> def this_fails(): ... self.value = value ... It is useful for code that must be executed if the try clause does not raise an exception. http://caribtechsxm.com/python-exception/python-io-error-exception.php exception IOError¶ Raised when an I/O operation (such as a print statement, the built-in open() function or a method of a file object) fails for an I/O-related reason, e.g.,
Why do units (from physics) behave like numbers? Python Catch Multiple Exceptions The try statement works as follows. x, y = inst.args ...
This class is derived from EnvironmentError. exception BufferError¶ Raised when a buffer related operation cannot be performed. If Six Is Easy, Is Ten So Hard? Sys Exc_info print('Goodbye, world!') ...
Can I use my client's GPL software? except NameError: ... Why do units (from physics) behave like numbers? What is the difference between TeX and Texinfo?
instead of >>>, you're still inside a block. –MattDMo Feb 16 '15 at 19:35 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up Then if its type matches the exception named after the except keyword, the except clause is executed, and then execution continues after the try statement.