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Python Articles
Page 36 of 852
How can you execute functions with multiple arguments at a terminal?
In Python, you can execute functions with multiple arguments directly from the terminal using different approaches depending on how your function is defined and how you want to provide the arguments. Executing Python functions from the terminal allows you to quickly test or run code without writing a full script. When a function requires multiple arguments, you can pass them manually, use input prompts, or use command-line arguments with the help of modules like sys or argparse. Using the Python Interactive Shell If you are working in the Python interactive shell, you can define and call functions directly by entering ...
Read MoreHow do I calculate the date six months from the current date using the datetime Python module?
Python does not have a data type for dates, but we may import the datetime module to work with dates as date objects. Calculating dates that are months apart from a given date is quite challenging due to the varying length of months in our calendar system. This article tells about how to display the current date by importing the datetime module. There are two main methods to calculate a date six months from now in Python, which includes - Using relativedelta() function Using timedelta() function Using relativedelta() Function ...
Read MoreHow to clamp floating numbers in Python?
Clamping refers to limiting a number to a specific range, i.e., making sure that the number lies between the minimum and maximum value mentioned. This method is used in applications like graphics and statistical computations, as it requires the data to stick to specific limits. Clamping Floating Numbers in Python The following are some of the approaches to clamp floating numbers in Python - Creating a User-Defined Function Since Python has no built-in clamp function, in the following program, we will create our clamp() function, which takes three parameters - n (number to be clamped), min (minimum value), and max (maximum ...
Read MorePython Program to Print Hollow Rectangle pattern
When we start programming then printing different star patterns helps us build our logic and problem-solving skills. One of the easiest and beginner patterns is the hollow rectangle pattern. In this article, we are going to learn how we can print the hollow rectangle pattern using different approaches in Python. Hollow Rectangle Pattern A Hollow rectangle pattern is a rectangle-shaped pattern printing of stars where the stars are present only on the boundaries of the rectangle. The rectangle is hollow, i.e., the stars are printed only on the boundaries of the rectangle, while the inner area remains empty. ***** ...
Read MoreWhat are the key differences between Python 2.7.x and Python 3.x?
Python 3.0 was released in December 2008. It was designed to rectify certain flaws in earlier versions. Python 3.0 doesn’t provide backward compatibility. That means a Python program written using version 2.x syntax doesn’t execute under the Python 3.x interpreter. Version 2.7 is the final major release in the Python 2.x series. The guiding principle of Python 3 was: "reduce feature duplication by removing old ways of doing things". Although there are quite a few differences in usage of these two versions, the most obvious ones are mentioned below - Print Statement Vs Function print is a keyword in Python ...
Read MoreHow to remove all special characters, punctuation and spaces from a string in Python?
It is necessary to clean up the strings by removing the unwanted elements such as special characters, punctuation, and spaces. These unwanted characters can be involved in the tasks and cause unexpected results. In this article, we are going to learn more about removing all special characters, punctuation and spaces from a string. Using Python re Module Through the re module, Python provides support for regular expressions. This module contains methods and classes that we can search, match, and modify a string (text content) using regular expressions.ThePython re.sub() method accepts a pattern, a replacement string, and a string as ...
Read MorePython Program to count nodes in a binary tree
In this article, we are going to learn how we can count the total number of nodes in a binary tree in Python, using different approaches. A binary tree is a data structure in which each node can have at most two children. The two children node of a binary tree are called the left child and the right child. We have to calculate the total number of nodes present in the binary tree. Scenario 1 Input: Binary Tree = 1 2 3 4 5 Output: Total number of nodes: 5 Above-given binary tree has five nodes: 1, 2, ...
Read MoreHow to convert a single character to its integer value in Python?
In Python, the ord() function converts a given character to the corresponding ASCII (American Standard Code for Information Interchange) integer. The ord() function raises a TypeError if you pass a string value as a parameter. Converting a single alphabet to its integer In the following example, we have converted a character 'A' into its Unicode using the ord() function - my_str='A' result=ord(my_str) print("Unicode of 'A'-", result) Following is an output of the above code - Unicode of 'A'- 65 Printing Integer values of all the alphabets We can use the ord() function to print all the Unicode characters ...
Read MoreHow to open a file in the same directory as a Python script?
In Python, it is a common scenario that the files we want to work with should be placed in the same folder as the script itself. Simply we with the reference of a filename like "data.txt" may not always work as expected, especially when the script is executed from a different working directory. The best way is to place the scripts in the actual location using the __file__ variable along with the os or pathlib modules. In this article, we are going to see the different approaches to open a file in the same directory as a Python script. Using ...
Read MoreHow to delete all files in a directory with Python?
We may see many situations in Python where we need to remove all the files from a particular folder. For example, we may need to perform cleaning up temporary logs, resetting application data, or managing output directories. This can be done by simply pointing to the folder and deleting files manually, but it is inefficient, especially when working with large-scale or automated scripts. In such cases, we can ensure a clean and reliable way of deleting files by using the built-in modules like os, pathlib, or shutil, which allow us ...
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