Server Side Programming Articles - Page 294 of 2650

In Python we can get a character from the given string using the indexing operator ‘[ ]’, using slices, and using indices separated by a colon. By passing the index of the character we want to access to the index operator we can easily get the character from the string. In this article, we will see how we can access the character of the string using the index operator. Using [ ] Operator Syntax string[index] Here string is the given string from which we want to access a specific character. The index is the index of the character in ... Read More

In Python, a subset of a string is a sequence of characters that is part of the original string. We can find all the subsets of a string using itertools module in Python. In this article, we will see how we can generate all the subsets of a string by making all possible combinations of characters in the string. Syntax itertools.combination(string, r) The combination() function of itertools module takes the string and r which represents the size of different combinations of strings that are possible.It returns all the combinations of characters of the string that are possible. Algorithm ... Read More

In Python, a string can be divided into N equal parts using the slicing method. Substrings of equal length can be extracted using the Python slicing method by specifying the starting and ending index of the substring. In his article, we will see how we can divide a string into N equal parts using the Python slicing method. To divide a string into N equal parts we need to create a function that takes the original string and the number of parts in which the string is to be divided as input and returns the resultant N equal strings.If the ... Read More

In Python, we can use the pathlib module, os module, and glob module to display all the folders in a directory. The os module contains various functions like os.scandir, os.walk , os.listdir or glob(), and iglob() methods, etc to list all the directories in a directory. A directory is a folder in a file system that stores various files or more folders. Method 1: Using the Pathlib Module We can use the Path.iterdir() function to get the path object of the contents in the directory. We can then iterate over the path objects and filter out the directories using the path.is_dir() ... Read More

The first law of thermodynamics is related to energy conservation, i.e., if energy in form disappears then the energy will in appear in some other form. In thermodynamics majorly we are concerned about heat, work and internal energy. Heat and work are the form of energy which are also called as "energy in transit", hence they are path functions. They cannot be stored by a system, whereas internal energy is the property of the system which can be stored by system. For a closed system, the first law is written as − $$\mathrm{\Sigma Q=\Sigma W}$$ But this is only valid ... Read More

In Python, the comparison operator (==) and equals() methods are used in different ways when working with strings. To differentiate between the == operator and the equals method in Python we have to use them with string comparison. String comparison widely occurs when we work with strings in data analysis and machine learning. In this article, we will see how we can differentiate between the == operator and the equals() method when used with strings. == operator in Python The == is a comparison operator used to compare two string values. It returns True when the value of the string ... Read More

In Python, we can demonstrate string interpolation using the f-string, %operator, and format() method. String Interpolation is the process of inserting dynamic data or variables in the string. It is useful when a string is formed using variables or expressions without using any string formatting or string concatenation. In this article, we will see how we can use Python to do string interpolation. Method 1 : Using f-string An f-string is a string literal which starts with f or F. The prefix f or F indicates that the string is an f-string. The string contains the expression which is enclosed ... Read More

In Python, we can create a string object using Python's inbuilt function str() and also by assigning a sequence of characters to a variable. The sequence of characters is enclosed in the single quote or double quotes. We can also create a multiline string object using triple quotes. In this article, we look at the various ways in which we can create a string object in Python. Example 1:Creating a string object using single quote We can create a string object by simply assigning a sequence of characters enclosed in a single quote to a variable. my_string = 'Hello World!' ... Read More

In python we can use the comparison operators like “==”, ”!=”, “”, ”=” and python inbuilt function like lower() and upper() methods to compare two strings by ignoring case. Strings are character sequences enclosed in double quotes. These operators compare strings based on the Unicode code points assigned to each character of the string. In this article, we will understand how we can compare two strings by ignoring cases of the string. Comparing Strings Ignoring Case To compare two strings in Python while ignoring the case, we can use the lower() or upper() function which converts the string to ... Read More

In Python, we can clear the string buffer by assigning an empty string to the buffer and using Python's inbuilt reset() method. A string buffer is a mutable sequence of characters. These characters can be modified according to the requirements. The string buffer can be modified or cleared before the string is written to an output stream. In this article, we will understand how to clear the string buffer using examples. Method 1 : Assign Empty String to the Buffer One of the methods to clear the string buffer is to assign the buffer with an empty string. Assigning an ... Read More