Python3 File close() Method

Python3 File(file) Methods

Overview

close()The method is used to close an opened file. After closing, the file can no longer be read or written. Otherwise, it will triggerValueErroran error. The close() method can be called multiple times.

When a file object is referenced to operate on another file, Python automatically closes the previous file object. Using the close() method to close files is a good habit.

Syntax

The syntax of the close() method is as follows:

fileObject.close();

Parameters

• None

Return Value

This method has no return value.

Example

The following example demonstrates the use of the close() method:

#!/usr/bin/python3

# 打开文件
fo = open("example.txt", "wb")
print("文件名为: ", fo.name)

# 关闭文件
fo.close()

The output result of the above example is:

文件名为:  example.txt

Python3 File(file) Methods