Server Side Programming Articles - Page 2557 of 2646

Python's built-in library function max() returns the largest number in an iterable or commaa separated list of numbers.>>> max(10,23,43,21) 43 >>> l1=[4,7,2,9,1] >>> max(l1) 9

In this article, we will show you how to do python math at the command line. Python is an interpreter-based language. When you invoke the Python interpreter, (>>>) Python prompt appears. Any Python statement can be entered in front of it. As soon as you press ENTER, the statement is executed. Hence a mathematical expression using operators defined in Python will be evaluated at the command line. What are Operators? A symbol or function that represents an operation is called an operator. For instance, in mathematics, the addition operator is represented by the plus sign (+). While some of ... Read More

Python's built-in function sum() returns sum of numbers in an iterable object such as list or tuple. It takes two arguments, initial value which is optional and 0 by default and iterable objectExample>>> l1=[10,20,30,40,50] >>> ttl=sum(l1) >>> ttl 150 >>> ttl=sum(range(10)) >>> ttl 45

Python's core library has two built-in functions max() and min() respectively to find maximum and minimum number from a sequence of numbers in the form of list or tuple object.example>>> max(23,21,45,43) 45 >>> l1=[20,50,40,30] >>> max(l1) 50 >>> t1=(30,50,20,40) >>> max(t1) 50 >>> min(l1) 20 >>> min(t1) 20 >>> min(23,21,45,43) 21

The absolute value of a number is its non-negative representation. It specifies the distance of that number from zero on a number line, irrespective of its direction.For example, the absolute value of -2 is 2, and 2 is simply 2. In this article, we will explore how to calculate the absolute value of a number in Python. Calculating Absolute Value in Python The following methods can be efficiently used to calculate the absolute value of a number. Using User-Defined Function (Brute Method) Using abs() function ... Read More

In this article, we will explain the immutable datatypes in Python. Python considers everything to be an object. A unique id is assigned to it when we instantiate an object. We cannot modify the type of object, but we may change its value. For example, if we set variable a to be a list, we can't change it to a tuple/dictionary, but we may modify the entries in that list. In Python, there are two kinds of objects. On the one hand, there are objects that can change their internal state (the data/content inside the objects), i.e. they can be ... Read More

In Python, dictionaries are used to store data as key-value pairs, and lists store a collection of items separated by commas. To map two lists into a dictionary, we have various methods in Python that we will explore in this article. Mapping two lists into a Dictionary Mapping two lists into a dictionary can be done using the following methods - Using a Loop Using a Zip and Dict Method Using Dictionary Comprehension Using a Loop For loops are used to iterate ... Read More

There are two ways available to access value associated with a key in a dictionary collection object. The dictionary class method get() takes key as argument and returns value. >>> d1 = {'name': 'Ravi', 'age': 23, 'marks': 56} >>> d1.get('age') 23 Another way is to use key inside square brackets in front of dictionary object >>> d1 = {'name': 'Ravi', 'age': 23, 'marks': 56} >>> d1['age'] 23

In Python, objects are instances of classes containing attributes and methods, while dictionaries are collections of key-value pairs. We can obtain a dictionary from an object's fields - Using __dict__ Using vars() Using __dict__ You can access an object's attributes as a dictionary using its _dict_ attribute. In Python, every object has a _dict_ attribute that stores the object's attributes and their values as a dictionary (key-value pairs). Example In this example, we have defined a class Company with attributes Companyname and Location, and created ... Read More

In this article, we will show you how to convert a python dictionary to a list. Below are the methods to accomplish this task: Using list & items() Method Using keys() Method Using values() Method Using List Comprehension Using Zip() Function Using map() Function Using for loop & items() Method Dictionaries are Python's version of an associative array data structure. A dictionary is a collection of key-value pairs. Each key pair is represented by a key pair and its associated value. A dictionary is defined by a list of key-value pairs enclosed in curly braces and ... Read More