#PYTHON(DAY30)FileHandling(write() method)

 

#PYTHON(DAY30)

Filehandling(write() method)

Write to an Existing File

To write to an existing file, you must add a parameter to the open() function:

“a” - Append - will append to the end of the file

“w” - Write - will overwrite any existing content

Example:

Open the file “demofile2.txt” and append content to the file:

f = open("demofile2.txt", "a")
f.write("Now the file has more content!")
f.close()

#open and read the file after the appending:
f = open("demofile2.txt", "r")
print(f.read())

And the output is:

Hello! Welcome to demofile2.txt
This file is for testing purposes.
Good Luck!Now the file has more content!

Example:

Open the file “demofile3.txt” and overwrite the content:

f = open("demofile3.txt", "w")
f.write("Woops! I have deleted the content!")
f.close()

#open and read the file after the overwriting:
f = open("demofile3.txt", "r")
print(f.read())

And the output is:

Woops! I have deleted the content!

Note: the “w” method will overwrite the entire file.