Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
Python Articles
Page 195 of 852
How to join two strings to convert to a single string in Python?
In Python, we can join two strings into one single string using different ways, such as - Using the + Operator Using the join() Method Using Formatted Strings String Concatenation in Loops Let us look at each method with examples. Using + Operator The most common way to combine two strings into one in Python is by using the + operator. It joins the strings exactly as they are, without any space or separator in between. Example In the following example, we ...
Read MoreHow to check if a character is upper-case in Python?
In this article, we are going to find out how to check if a character is an uppercase letter in Python. We will explore four different approaches - Using the isupper() method Using regular expressions Using ASCII values Direct comparison In each approach, we will check whether a given character is in uppercase and return True or False accordingly. Using the isupper() Method The first and most straightforward way is by using the built-in isupper() method. This method returns True if the ...
Read MoreHow to catch an exception while using a Python \\\\\\\'with\\\\\\\' statement?
In Python, the with statement is used when working with files or network connections. It makes sure that resources (files) are opened, used, and then closed properly, even if an error occurs during the process. If you want to catch any exceptions that happen inside a with block, you can wrap it in a try-except statement. Alternatively, you can use a custom context manager that handles exceptions on its own. Catching Exceptions Inside with Block Using try-except To catch errors that occur inside a with block, we need to place it within a try-except. This helps you to handle any ...
Read MoreHow to get the maximum file name length limit using Python?
In Python, when performing file operations such as creating or renaming files, one of the limitations is the maximum length limit of a file name, and when we exceed this limit, then results in errors such as OSError: [Errno 36] File name too long. Using os.pathconf() function In Python, the os.pathconf() function is used to get system-specific configuration values related to files and directories. This function also helps in checking limits such as the maximum file name length or the maximum path length allowed by the file system. Syntax Following is the syntax of using the os.pathconf() function - os.pathconf(path, name) ...
Read MoreHow to match a word in python using Regular Expression?
In Python, Regular Expressions (RegEx) are used to match patterns in the given input strings. The re module in Python provides different methods to use the regular expressions. This module helps the developers to perform search operations, validations, filtering, and much more based on string patterns. In this article, we will explore different ways to match a word in Python using the re module. Match a Specific Word using re.search() In Python, the re.search() method is used to search for a pattern within a given string. If the pattern is found, then it returns a match object otherwise, it returns ...
Read MoreHow can I match the start and end in Python\\\\\\\'s regex?
In Python, the re module is used to work with regular expressions. In some cases, we need to check whether a string starts or ends with a specific pattern, and then we need to use special regex characters called anchors. Following are the anchors used in regular expressions - ^ − This anchor matches the beginning of a string. $ − This anchor matches the end of a string. Python Regex Methods The following methods from the re module are commonly used to apply start and end matching - ...
Read MoreHow to match non-word characters in Python using Regular Expression?
A Non-word character is any type of character that is not a letter, digit, or underscore, i.e., anything other than [a-z, A-Z, 0-9_]. Examples of non-word characters are symbols, punctuation marks, spaces, tabs, and other special characters. In Python, Regular Expressions (RegEx) are used to match the patterns in the given input strings. The re module in Python provides different methods to use the regular expressions. This module helps the developers to perform search operations, validations, filtering and much more, based on string patterns. To match a non-word character in Python, we can use the special character class \W inside ...
Read MoreHow to recursively iterate a nested Python dictionary?
A Dictionary in Python is a mutable, unordered collection of data in a key-value format. A dictionary can also contain another dictionary as a value and this is known as a Nested Dictionary or a dictionary within a dictionary. When working with this type of data structure, it’s often important to go through each key-value pair at every level. In this article, we will explore how to recursively iterate through a nested Python dictionary using a function-based approach. Syntax to iterate through a Dictionary recursively Following is a sample syntax for recursively iterating through a nested dictionary - def recursive_iter(d): ...
Read MoreAre Python Exceptions runtime errors?
Are Python Exceptions Runtime Errors? Yes, Python exceptions are considered runtime errors. Most exceptions occur during runtime.Exceptions in Python are errors that occur when there is an abnormal scenario during the execution of a program, which terminates the execution abruptly, interrupting its normal flow. Examples of exceptions are ZeroDivisionError, IndexError, ValueError, etc..Whereas, errors in Python are detected before the execution of the program, they include syntactical errors and other violations of the program rules. Examples of errors are SyntaxError, IndentationError, etc. Exceptions are Raised at Runtime Exceptions occur when the execution of the program is interrupted because of issues like logical ...
Read MoreHow to catch FloatingPointError Exception in Python?
Catching FloatingPointError Exception in PythonFloatingPointError in Python is an exception that occurs when there is an error in floating-point calculations. By default, Python does not raise this error for basic operations like dividing by zero; instead, it returns inf or nan. To catch this error, you need to enable it explicitly using the numpy module. In this article, you will learn how to catch a FloatingPointError by enabling it through NumPy settings and handling it using a try-except block. When Does FloatingPointError Occur? FloatingPointError can occur in cases like - Divide by zero in floating-point calculations (if enabled) ...
Read More