Category: Python

What is Lambda Function in Python ? In Python, a lambda function is a small anonymous function that can have any number of arguments but can only have one expression. It is defined using the keyword "lambda" followed by the function arguments and a colon, followed by the expression to be evaluated.Here's the syntax for defining a lambda function:lambda arguments: expressionThe lambda function can then be assigned to a variable for later use or can be used directly as a function.Here's ... Read More

Given an array arr[ ] of N integers and a positive integer K, the task is to find the minimum number of operations required to reduce all array elements to 0 such that in each operation reduce any array element by 1 and independently at most K array element can be reduced to 0. Examples: Input: arr[ ] = {4, 1, 5}, K = 1 Output: 5 Explanation: Following are the operations performed to convert all array elements to 0: Here K = 1, So replace arr[2] by 0, converts arr[v] to {... Read More

Hello Everyone, In this tutorial we are going to build weather app using HTML CSS & JavaScript. In the last tutorial we are created Preview Image Before Upload Using JavaScript. We have to learn how to create a weather app using HTML & JavaScript. In this weather app, you can get the weather details of a particular area as well as city by entering the city name or you can also get your current location weather details by clicking on the “Get Device Location” button. If you entered ... Read More

Here, we are going to learn how to send a simple basic mail using Python code. Python, being a powerful language don’t need any external library to import and offers a native library to send emails- “SMTP lib”. “smtplib” creates a Simple Mail Transfer Protocol client session object which is used to send emails to any valid email id on the internet. Different websites use different port numbers. In this article, we are using a Gmail account to send a mail. Port number used here is �... Read More

Recursion is a programming method, in which a function calls itself one or more times in its body. Usually, it is returning the return value of this function call. If a function definition follows recursion, we call this function a recursive function. Also Read : How to get a list of parameter names inside Python function? A recursive function has to terminate to be used in a program. It terminates, if with every recursive call the solution of the problem is becomes smaller and moves towards ... Read More

To extract the number and names of the arguments from a function or function[something] to return ("arg1", "arg2"), we use the inspect module. The given code is written as follows using inspect module to find the parameters inside the functions aMethod and foo. Example import inspect def aMethod(arg1, arg2): pass print(inspect.getargspec(aMethod)) def foo(a,b,c=4, *arglist, **keywords): pass print(inspect.getargspec(foo))  Output ArgSpec(args=['arg1', 'arg2'], varargs=None, keywo... Read More

Decorators are “wrappers”, which allow us to execute code before and after the function they decorate without modifying the function itself. Example The given code can be wrapped in a chain of decorators as follows. def makebold(fn): def wrapped(): return "" + fn() + "" return wrapped def makeitalic(fn): def wrapped(): return "" + fn() + "" return wrapped @makebold @makeitalic def hello(): return "hello world" print hello() Output C:/Users/codegyan/~.py hel... Read More

Everything in Python is an object, and almost everything has attributes and methods. In python, functions too are objects. So they have attributes like other objects. All functions have a built-in attribute __doc__, which returns the doc string defined in the function source code. We can also assign new attributes to them, as well as retrieve the values of those attributes. For handling attributes, Python provides us with “getattr” and “setattr”, a function that takes three arguments.... Read More