Python file reading tips: steps to read .py files

Reading .py files in Python can be done in two ways: using the open() function to open the file in read-only mode and using the read() method to read the contents. Read the file using the Path() object and read_text() method of the Pathlib module.

Python file reading skills: steps to read .py files

Introduction

In Python, reading files is a common operation. We can use a variety of methods to read a .py file and process its contents as needed.

Method

1. Use open() function

with open('my_file.py', 'r') as f:
    data = f.read()

• open() The function opens the my_file.py file and returns a file object.
• 'r' The parameter specifies that we want to open the file in read-only mode. The
• with statement automatically manages the file object and closes the file after the block execution ends.

2. Use the Pathlib module

from pathlib import Path

path = Path('my_file.py')
data = path.read_text()

• Pathlib module provides a more oriented The object's methods for file operations.
• Path() The constructor returns a Path() object.
• read_text() method reads the file content and returns a string.

Practical case

Suppose we have a Python file named my_file.py, which contains the following code:

# my_file.py

def my_function():
    return "Hello, world!"

Example:

Use the open() function to read the file:

with open('my_file.py', 'r') as f:
    print(f.read())

Output:

# my_file.py

def my_function():
    return "Hello, world!"

Use Pathlib Module reads file:

from pathlib import Path

path = Path('my_file.py')
print(path.read_text())

Output:

# my_file.py

def my_function():
    return "Hello, world!"

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