File handling in Python involves working with files on the filesystem. It allows reading data from files, writing data to files, and performing various file-related operations. Python provides built-in functions and methods to perform these tasks efficiently.
To create a new file in Python, we use the open() function with the 'w' mode. It creates a new file if it does not exist or truncates the file if it already exists, allowing writing data to it.Refer to the tutorial on Creating a File in Python to read about the code sample of this section in detail.
To work with an existing file in Python, we use the open() function with different modes such as 'r' (read), 'w' (write), or 'a' (append). The file is opened in the specified mode, allowing various file operations.A detailed explanation of the code samples for this section are included in the tutorial on Opening a File.
To read data from a file in Python, we use the read() or readlines() methods after opening the file in read mode ('r'). It allows retrieving data from the file for processing or display.The tutorial Reading a File explains the code sample given above for this section in detail.
To write data to a file in Python, we use the write() method after opening the file in write mode ('w'). It enables adding content to the file, overwriting any existing data.The tutorial on Writing to a File gives a better understanding of the code samples for this section.
To append data to an existing file in Python, we use the write() method after opening the file in append mode ('a'). It allows adding new content at the end of the file, preserving the existing data.The step by step tutorial on Append to a File throws more light on the topic and the code samples.
To check if a file exists in Python, we use the os.path.exists() function from the os module. It returns True if the file exists and False otherwise, enabling conditional file operations.The code samples given above for this section are explained in detailed in the tutorial - Check if a File Exists in Python.
The seek() function in Python is used to change the current file position within an open file. It allows moving the file pointer to a specific position, enabling reading or writing data at a particular location.Thorough understanding of the code for this section can be gained from the Seek() Function tutorial.
To rename files in Python, we use the os.rename() function from the os module. It allows changing the name of an existing file, providing flexibility in file management and organization.A comprehensive tutorial on the topic Rename Files explains the code samples of this section in more detail.