Python always operates on an Exception based model. That is, any errors during the program execution are passed as Exceptions and returned to the programmer, which may be handled accordingly using Exception Handling techniques. Sometimes, it is possible that a process raises more than one possible exception, depending on the flow of control. Thus, we […]
Before going through this article, let us understand what the terms stdin, stdout and stderr are. Standard input – This is the file-handle that a user program reads to get information from the user. We give input to the standard input (stdin). Standard output – The user program writes normal information to this file-handle. The
Python’s encode and decode methods are used to encode and decode the input string, using a given encoding. Let us look at these two functions in detail in this article. Encode a given String We use the encode() method on the input string, which every string object has. Format: This encodes input_string using encoding, where
Since Python does not support static type checking (i.e type checking at compile type), if you ever want to check if a Python variable or object is a String or not; we need to use certain methods. Let us understand some of the ways of checking for a string type object. 1. Using isinstance() method
A Complex Number is any number of the form a + bj, where a and b are real numbers, and j*j = -1. In Python, there are multiple ways to create such a Complex Number. Create a Complex Number in Python We can directly use the syntax a + bj to create a Complex Number.
An Exception is raised whenever there is an error encountered, and it signifies that something went wrong with the program. By default, there are many exceptions that the language defines for us, such as TypeError when the wrong type is passed. In this article, we shall look at how we can create our own Custom
Python setattr() function is used to set the attribute of an object, given its name. While being a very simple function, it can prove to be very useful in the context of Object Oriented Programming in Python. Let us look at how we could use this function in our Python programs. setattr() Function Syntax It
Python’s Template String Class provides a way for simple string substitution, wherein the template fields are substituted with suitable replacement strings provided by the user. Sometimes, it may be a preference to have an easier to replace string, rather than using other format strings for substitution. Template Strings are used exactly for this purpose, to
The // operator in Python 3 is used to perform floor-based division. This means that a // b first divides a by b and gets the integer quotient, while discarding the remainder. This means that the result of a//b is always an integer. Python // Operator Examples Here are a few examples to illustrate the
Python’s filter() function is used to filter the elements of an iterable (sequence) with the help of a predicate that tests each element on the iterable. A predicate is a function that always returns True or False. We cannot use a generic function with filter(), since it returns all elements only if a suitable condition