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Articles by Akshitha Mote
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Do you think garbage collector can track all the Python objects?
The garbage collector doesn't track (and collect) all the objects; it can only track objects that are unreachable (have a reference count of zero), and the objects that are involved in circular references. What is a garbage collector? The garbage collector is an automatic (implicit) process that handles memory allocation and deallocation, ensuring efficient use of memory. We can interact with the garbage collector in Python explicitly and modify its behavior, using the gc module; it is a built-in module in Python for garbage collection. By default, it is turned ON; you may turn it off if you are sure ...
Read MoreHow to convert a string to a Python class object?
Let's understand the title: converting a string to a Python class means accessing a Python class using its name stored as a string, allowing dynamic creation of objects at runtime. In this article, we will discuss different ways to convert a string to a Python class object. Using globals() Function The globals() function is used to convert a string to a Python class object when a class is in global scope. class Bike: def start(self): print("Bike started!") class_name = "Bike" cls = globals()[class_name] # Convert string to class obj ...
Read MoreExplain Inheritance vs Instantiation for Python classes.
In Python, inheritance is the capability of one class to derive or inherit the properties from another class. The class that derives properties is called the derived class or child class, and the class from which the properties are being derived is called the base class or parent class. In other words, inheritance refers to defining a new class with little or no modification to an existing class. Following is the syntax of the inheritance - class A: #class A (base class) pass class ...
Read MoreWhat are different types of quotes in Python?
In Python, strings can be defined using single quotes ('), double quotes ("), or triple quotes (''' or """). For example, 'Hello' is a valid string. There are different types of quotes in Python. Each quotation is used in different scenarios as per the requirement. The following are the different types of quotations that we can use in the Python programming language. Single quotes Double quotes ...
Read MoreWhat is the difference between dict.items() and dict.iteritems() in Python?
In Python, the dict.items() and dict.iteritems() methods are used to return a dictionary. The only difference is that the dict.items() returns the keys and value pairs in the form of a list of tuple pairs, whereas the dict.iteritems() returns an iterator over the dictionary’s (key, value) tuple pairs. The dict.items() and dict.iteritems() functions are present in Python 2.x versions. The dict.iteritems() function is omitted from the Python 3.x version. Example - 'dict.items()' in Python 2.x version Following is an execution of the dict.items() in Python 2.x version - my_dict={1:'one', 2:'two', 3:'three', 4:'four'} print(my_dict.items()) Output Following is the output ...
Read MoreWhat is __init__.py in Python?
In Python, the __init__.py is a special file in python packages. It is used to indicate that how a directory should be treated. When Python encounters a directory during an import, first it looks for the __init__.py file to determine how to initialize the package and what code should be executed during the import. In python 3.3 version, the __init__.py was introduced with the feature of creating a package with the namespace. Let's understand the purpose of the __init__.py file - It makes the directory a Python package so the interpreter can find the module ...
Read MoreDo you think declarations within Python class are equivalent to those within __init__ method?
In Python, the declarations within a class are not equivalent to those within the __init__() method. Let's discuss the class and __init__() method. A class is a collection of objects. It contains the blueprints or the prototype from which the objects are being created. It is a logical entity that contains some attributes and methods. Python '__init__()' The Python __init__() function is one of the OOP's concepts. The __init__() is called automatically whenever the object is been created to a class. The __init__() function is also known as a constructor. Constructors are used to initialize ...
Read MoreWhat is function of ^ operator in Python
In Python, the XOR operator is one of the bitwise operators and is represented by the caret symbol ^. It returns 0 if both operands are the same and 1 if the operands are different. Truth Table of XOR The following is the truth table of the XOR (exclusive OR) operator - A B ...
Read MoreDoes Python have a ternary conditional operator?
The Python ternary operator returns a value based on whether a condition is True or False. It is similar to an if-else statement but is expressed in a single line. For understanding the ternary operator, we need to have an idea about conditional statements. Let's have a basic understanding of the if-else statement. We will have an if block followed by an else block here. The if block is executed when the given condition is True, and the else block is executed if the given condition is False. The following is the basic syntax of the if-else statement - if condition: ...
Read MoreHow to create an empty list in Python?
In Python, list is one of the built-in data types. A Python list is a sequence of items separated by commas, enclosed in square brackets [ ]. The items in a Python list need not be of the same data type. In this article, we will discuss different ways to create an empty list in Python. Using Square Brackets This is one of the simplest way to create an empty list to using square brackets[]. An empty list means the list has no elements at the time of creation, but we can add items to it later when needed. my_list=[] ...
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