f = open("E:\\python video classes - Copy\\19.python files\\test_data.csv","r+")
for k in range(3):
    line = next(f)
    print(line)
    
f.truncate(75)
data = f.readlines()
line = 6
column = 1
linePosition = len(data)+1-line
a = sum([len(k) for k in data[:-linePosition]],len(data[:-linePosition]))
f.seek(a+column-1)
data = f.read()
print(data)
f.close()


with open("C:\\Users\\sairam\\Desktop\\test sample\\fileposition.txt", "r") as f:
    result = f.read()
    print(result)
    
    
with open("C:\\Users\\sairam\\Desktop\\test sample\\fileposition.txt", "r") as f:

    result = f.read(20)
    print(f.tell())
    print(result)