Python File write() Method

Description

The method write() writes a string str to the file. There is no return value. Due to buffering, the string may not actually show up in the file until the flush() or close() method is called.

Syntax

Following is the syntax for write() method

fileObject.write( str )

Parameters

• str -- This is the String to be written in the file.

Return Value

This method does not return any value.

Example

The following example shows the usage of write() method.

#!/usr/bin/python

# Open a file
fo = open("foo.txt", "rw+")
print "Name of the file: ", fo.name

# Assuming file has following 5 lines
# This is 1st line
# This is 2nd line
# This is 3rd line
# This is 4th line
# This is 5th line

str = "This is 6th line"
# Write a line at the end of the file.
fo.seek(0, 2)
line = fo.write( str )

# Now read complete file from beginning.
fo.seek(0,0)
for index in range(6):
   line = fo.next()
   print "Line No %d - %s" % (index, line)

# Close opend file
fo.close()

Let us compile and run the above program, this will produce the following result:

Name of the file:  foo.txt
Line No 0 - This is 1st line

Line No 1 - This is 2nd line

Line No 2 - This is 3rd line

Line No 3 - This is 4th line

Line No 4 - This is 5th line

Line No 5 - This is 6th line