Python file Write () method

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Overview

The write () method of the Python file is used to write the specified string to the file.

The contents of the string are stored in the buffer before the file is closed or before the buffer is flushed, and you cannot see what is written in the file.

Grammar

The write () method syntax is as follows:

Fileobject.write (str)

Parameters

• Str --the string to write to the file.

return value

The method has no return value.

Instance

The contents of the file Runoob.txt are as follows:

1:www.runoob.com2:www.runoob.com3:www.runoob.com4:www.runoob.com5:www.runoob.com

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

#!/usr/bin/python3# Open File fo = open ("Runoob.txt", "r+", encoding= "Utf-8") print ("File name:", Fo.name) # Write a line at the end of the file Fo.seek (0,2) Fo.write ("\n6:www.runoob.com") # reads all the contents of the file Fo.seek (0,0) for index in range (6):    line = Next (FO)    print ("File row number%d-%s" % (index, line)) # Close file Fo.close ()

The result of the above example output is:

File line number 0-1:www.runoob.com file line number 1-2:www.runoob.com file line number 2-3:www.runoob.com file line number 3-4:www.runoob.com file line number 4-5:www.runoob. COM file line number 5-6:www.runoob.com

To view the contents of a file:

$ cat Runoob.txt 1:www.runoob.com2:www.runoob.com3:www.runoob.com4:www.runoob.com5:www.runoob.com6:www.runoob.com

Python file Write () method