File Handling:
==============

tell():
=======
==> an inbuilt method in python
which we can use to get the current location of the file-pointer/file-object from the beginning of the file.

Syntax:
	file-pointer.tell()

# tell()

fp = open("abc.txt","r+")

print("The Position of fp = ",fp.tell())

fp.read(5)

print("The Position of fp = ",fp.tell())

fp.read(10)
print("The Position of fp = ",fp.tell())

fp.write("Continue.")
fp.readline()

print("The Position of fp = ",fp.tell())

===============================================

seek():
=======
==> is an inbuilt method 
which we can use to move the file pointer from one position to another position.

Syntax:
	file-object.seek(offset, from-where)

here:
	offset ==> number of positions, that how many need to move
	from-where ==> the start point to define the move

	from-where:
		0 ==> from the beginning of the file
		1 ==> from the current position.
		2 ==> from the end of the file.

Note:
====
python-3 can allowed to define the seek() for moving the file pointer from the beginning by default.
from-where with the values '1' and '2' ==> not supported in python-3.

# seek()

data = "Here is the Python Full Stack Content."

fp = open("abc.txt","w")

fp.write(data)

with open("abc.txt","r+") as fp:
    text = fp.read()
    print(text)

    print("The Current Position of fp = ",fp.tell())
    fp.seek(17)
    print("The Current Position of fp = ",fp.tell())

    fp.seek(0)
    print("The Current Position of fp = ", fp.tell())

    fp.seek(20)
    print("The Current Position of fp = ", fp.tell())

============================================

Checking of the file whether it is exists or not?
=================================================

import os

f = input("Enter the file name:")

if os.path.isfile(f):
    print("File is Existed.")
else:
    print("File is not Existed.")
===========================================

Q: WAP TO CHECK WHETHER THE FILE IS EXISTED OR NOT. IF THE FILE IS AVAILABLE, THEN PRINT ITS CONTENT.

import os,sys

fname = input("Enter the file to search:")

if os.path.isfile(fname):
    print("File is Existed:",fname)
    fp = open(fname,"r")
else:
    print("File Does not Exist:",fname)
    sys.exit(0)

print("The Content of file is = ")
data = fp.read()

print(data)

fp.close()

========================================================

Assignment:
===========
WAP TO PRINT THE NUMBER OF LINES, WORDS AND CHARACTERS PRESENT IN THE FILE.

========================================
HANDLING OF BINARY FILES:
=========================
MODES FOR BINARY FILES TO HANDLE:

	r, w, a, r+, w+, a+, x ==> Text file modes
	rb, wb, ab, r+b, w+b, a+b, xb ==> Binary file modes

# WAP TO READ IMAGE FILE AND WRITE TO A NEW IMAGE FILE.

f1 = open("image1.jpg","rb")
f2 = open("image2.jpg","wb")

bytes = f1.read()

f2.write(bytes)

print("The New Image has created from Image1 Successfully.")

=====================================================