os.write() - os

             
The method write() writes the string str to file descriptor fd. Return the number of bytes actually written.


fd -- This is the file descriptor.
str -- This is the string to be written.

Syntax

os.write(fd, str)

Example

# !/usr/bin/python

import os, sys

# Open file
fd = os.open("f1.txt",os.O_RDWR|os.CREAT)

# Writing text
ret = os.write(fd,"This is test")

# ret consists of number of bytes written to f1.txt
print "the number of bytes written: "
print  ret

print "written successfully"

# Close opened file
os.close(fd)
print "Closed the file successfully!!"

Output / Return Value

When we run above program, it produces following result:


the number of bytes written:
12
written successfully 
Closed the file successfully!!

Limitations

Alternatives / See Also

Reference