file operations in python

 # -*- coding: utf-8 -*-

"""

Created on Wed Feb 23 06:55:56 2022

@author: durga

"""

# import os

# file1 = open("test123.txt")

# print(file1)

# file1 = open("img.jpg")

# print(file1)

# print(file1.read())

# file1 = open("employee_class.py")

# print(file1)

# print(file1.read())

# =============================================================================

# 

# =============================================================================

# file2 = open("D:/python/Evening_batch/entry_test.py")

# print(file2)

# print(file2.read())

# =============================================================================

# file modes

# =============================================================================

# r = read default

# a = append mode

# w = write mode and opens also

# x = create  new

# file1 = open("test.txt",'r')

# print(file1)

# print(file1.read())

# file1 = open("test.txt",'a')

# print(file1)

file1 = open("test.txt",'w')

print(file1)

for i in range(100,200):

    file1 = open(f"test6{i}.txt",'x')

    print(file1)

#t= text default, text mode

#b= binary mode..(images)

# file1 = open("test.txt",'r')

# print(file1.read())

# file2 = open("D:/python/morning_class/test7.txt",'r')

# print(file2.read())

# file2 = open("D:/python/morning_class/test.txt",'r')

# print(file2.read(7))

# file2 = open("D:/python/morning_class/test.txt",'r')

# print(file2.read(10))

# =============================================================================

# readline()

# =============================================================================

# file2 = open("D:/python/morning_class/test.txt",'r')

# print(file2.readline())

# print(file2.readline())

# print(file2.readline())

# print(file2.readline())

# print(file2.readline())

# file2 = open("D:/python/morning_class/test.txt",'r')

# print(file2.readline(10))

# print(file2.readline(7))

# =============================================================================

# close the files

#variable.close()

# =============================================================================

file2 = open("D:/python/morning_class/test.txt",'r')

print(file2.readline(10))

# file2.close()

# print(file2.readline(10))

# =============================================================================

# write the extra lines

#variable.write()

# =============================================================================

file2 = open("D:/python/morning_class/test.txt",'a')

file2.write("extraline append to  nextline")

file2 = open("D:/python/morning_class/test.txt",'r')

print(file2.read())

file2.close()

#file2 = open("D:/python/morning_class/test.txt",'r')

print(file2.read())

file2 = open("D:/python/morning_class/test9.txt",'x')

file2.write("extraline append to  nextline")

# file2 = open("D:/python/morning_class/test9.txt",'r')

# print(file2.read())

# file2.close()

# a= dir(os)

# print(a)

#CRUD----create,read,update,delete

# os.remove("test7.txt")