Dictionaries are a valuable and frequently used data structure in Python. This article tells us how to traverse through a dictionary while performing operations on its key-value pairs. Using dict.items() Method Python's dict.items() method allows you to loop through the dictionary. Each repetition will provide you with both the key and value of each item. Example Following is an example to iterate through a dictionary using dict.items() method − dictionary = { 'Novel': 'Pride and Prejudice', 'year': '1813', 'author': 'Jane Austen', 'character': 'Elizabeth Bennet' ... Read More

Python has a built-in method called values() that returns a view object. The dictionary's values are listed in the view object. We can use the values() method in Python to retrieve all values from a dictionary. Python's built-in values() method returns a view object that represents a list of dictionaries containing every value. This article explains about the various ways to print all the values of a dictionary in Python. Using dict.values() Method Python's dict.values() method can be used to retrieve the dictionary values, which can then be printed using the print() function. Example Following is an example to print ... Read More

An unordered collection of data values is what a Python dictionary is. A Python dictionary contains a key: value pair, in contrast to other data structures that only include one value per entry. This article explains about the various ways to print all the keys of a dictionary in Python. Using dict.keys() Method Python's dict.keys() method can be used to retrieve the dictionary keys, which can then be printed using the print() function. A view object that shows a list of every key in the dictionary is the result of the dict.keys() method. The dictionary's elements can be accessed using ... Read More

File handling is a critical aspect of seamless data management in the realm of computer programming. There are times when choosing the buffer size is crucial when working with files, particularly when handling huge files or carrying out certain actions that need efficient memory utilization. Because of its integrated file-handling features, the strong and flexible programming language Python gives developers the freedom to choose the buffer size when opening files. This extensive essay will examine how to set the buffer size in Python when opening a file. In order to explain the ideas, we will go over them step-by-step and ... Read More

File handling plays a pivotal role in efficiently managing data in the realm of computer programming. Python, being a versatile and powerful language, equips developers with robust mechanisms for reading and writing files seamlessly. When working with files, Python offers a range of modifiers that allow for fine-tuning the behavior of the file object. One such modifier, the 'U' modifier, holds particular significance as it influences the way Python handles line endings when reading a file in text mode. In this comprehensive exploration, we will delve into the intricacies of the 'U' modifier and its implications when opening files in ... Read More

If we open a file in oython using the b modifier. The file is opened in binary mode using the 'b' modifier. Any file whose format doesn't consist of readable characters is referred to as a "binary" file. Binary files include audio files like MP3s, text formats like Word or PDF, and image files like JPEGs or GIFs. Files are automatically opened in text mode in Python. When choosing a mode, include the letter "b" for binary mode. By default, the open() function opens a file in text format. As a result, the "wb" mode opens the file in binary ... Read More

In the realm of Python programming, working with files demands a thorough grasp of the various modes in which files can be opened. The mode of file opening dictates the operations that can be performed on the file, be it reading, writing, or a combination of both. Python offers a wide array of modes tailored to diverse use cases and requirements. Whether you seek to read data from a file, write data to it, or simultaneously undertake both operations, selecting the appropriate file opening mode holds paramount importance for seamless file handling. In this comprehensive article, we embark on a ... Read More

The file last access datetime in Python can be obtained in a number of different ways. The following OS module methods will be used to obtain the file last access time in Python. Using os.path.getatime() Method In Python, we can use the os.path.getatime() method to retrieve a path's most recent access time. The path that we need to verify for the access time is taken by this approach. The amount of time since the epoch is returned as a floating point value. It throws one OSError if the requested path cannot be reached or if it does not exist. Syntax ... Read More

This Python article will teach you how to recursively remove all files in a folder that have a particular extension. The application will remove all files with the supplied extension inside the folder when we give it the folder path and file extension. Example - using file.endswith() method The steps involved to remove swap files are as follows − Import the _os _module and _listdir _from it. To view a list of all files in a certain folder, use _listdir, and to delete a file, use _os module. The path to the folder containing all files is called folderpath. ... Read More

You can create an objectUsing new keyword.Sample obj = new Sample();Using the newInstance() method and Class.forName() method.Sample obj2 = (Sample) Class.forName("Sample").newInstance();Using the clone() method by implementing Cloneable Interface (marker).Sample obj3 = (Sample) obj1.clone();Using class loader.Object obj4 = Sample.class.getClassLoader().loadClass("Sample");Using the constructor class from lang.reflect.Class cls = Sample.class; Constructor obj = cls.getDeclaredConstructors()[0]; Sample obj5 = (Sample) obj.newInstance();