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Python Articles
Page 199 of 852
What are Getters/Setters methods for Python Class?
Encapsulation is one of the fundamental concepts in object-oriented programming (OOP). It describes the idea of wrapping data and the methods that work on data within one unit. This restricts accessing variables and methods directly and can prevent the accidental modification of data. To prevent accidental change, an object’s variable can only be changed by the object’s method. Those types of variables are known as private variables. In Python, getters and setters are methods used to access and modify private attributes of a class. These methods are ...
Read MoreHow do we use double quotation in Python?
Double Quotes in PythonDouble quotes are used to represent a string or a character. The functionality of the single quotes and double quotes is the same. We can use any type of quote as per our requirement. The following is the syntax to create a string using double quotes in the Python programming language. str = “text” Example Let’s see an example to understand the functionality and usage of the double quotes in Python. Initially, we have created a string by passing the sentence in double quotes and assigned it to the variable str. Next we printed ...
Read MoreHow to find out if a Python object is a string?
The class is a blueprint, which is used as the reference to create the object. This contains attributes and methods in a logical entity.Let’s understand the usage of the class in an object-oriented programming language through a real-time scenario. Consider a library. In a library, we will have different numbers of books. Now we want to track every book from the library. For a book, we will have different attributes like book name, ...
Read MoreHow can I convert Python strings into tuple?
Converting Python String into TupleWe can convert a Python string into tuples by simply mentioning a comma (, ) after the string. This will treat the string as a single element to the tuple. Example Here our string variable “s” is treated as one item in the tuple, which can be done by adding the comma after the string - s = "python" print("Input string :", s) t = s, print('Output tuple:', t) print(type(t)) Following is the output of the above code - Input string : python Output tuple: ('python', ) Using tuple() Function Also, ...
Read MoreHow do I check what version of Python is running my script?
Python is being updated regularly with new features and support. Starting from 1994 to the current release, there have been lots of updates in Python versions.Using Python standard libraries like sys or platform modules, we can get the version information of Python that is actually running on our script. In general, the Python version is displayed automatically on the console immediately after starting the interpreter from the command line. Python 3.10.7 (tags/v3.10.7:6cc6b13, Sep 5 2022, 14:08:36) [MSC v.1933 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license()" for more information. Using the version attribute The sys ...
Read MoreHow can I iterate through two lists in parallel in Python?
In Python, using a for loop is common to iterate a single data structure like a list, but if we need to iterate two/multiple lists in parallel, we need to use the range() function. Iterating two Lists Using for Loop Assuming that both lists have the same length, here we are using the len() method to get the length of the list object. Example In the following example, we have iterated through the lists l1 and l2 of same size using for loop - l1 = ['a', 'b', 'c', 'd', 'e'] l2 = [97, 98, 99, 100, 101] length = ...
Read MoreHow can I convert a Python tuple to string?
A tuple is a collection of objects that is ordered and immutable. Tuples are sequences, just like lists. The differences between tuples and lists are that tuples cannot be changed, unlike lists, and tuples use parentheses, whereas lists use square brackets. Converting a Python tuple to a StringThere are three different ways we can convert a Python tuple to a string. Using a for loop. Using the Python join() method ...
Read MoreWhat is the maximum size of list in Python?
In Python, a list is a dynamic array that can be expanded in size as needed. The maximum size of a list is limited by the system's memory and the platform's architecture. In this article, we will explore how to determine the maximum size of a list in Python. Understanding Python List Limits The size of a list in Python is not restricted by any fixed value set in the language itself but also it depends on below factors - Available system memory (RAM) System architecture, i.e., 32-bit or 64-bit The value of ...
Read MoreWhat is the maximum length of string in Python?
In Python, strings are dynamic and can extend to a very large size, and can be limited only by the system's available memory. In other languages, compared to Python, it does not define a strict upper bound on string length. Instead, the practical maximum length of a string depends on the platform and memory constraints. In this article, we will explore how to determine the theoretical maximum string length in Python. Maximum Theoretical String Length Python strings are stored as sequences of Unicode characters, and the maximum size of a Python object is typically constrained by the value of sys.maxsize ...
Read MoreHow to sort a dictionary in Python by values?
Python allows dictionaries to be sorted using the built-in sorted() function. In this article, we will explore different ways to sort a dictionary in Python by its values. Sort a Dictionary Using itemgetter() method When we use the sorted() function along with the itemgetter() method of the operator module, the dictionary will be sorted by its values. The itemgetter() function returns a callable object that fetches an item from its operand using the provided index. Example Following is an example that shows how to sort a dictionary by its values using itemgetter() along with the sorted() function - from operator import ...
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