Python Files

  

       PYTHON

       Files

       Fill in the blanks

      

       1.Write a mode for file read   'r'

       2. Write a mode for file write   'w'

       3. Write a mode for file append  'a'

       4.Write a command for changing directory chdir

       5.Write a command for making a new directory mkdir

       6.Write a command for present working directory getcwd()

 

Answer the following questions

                                                        (4 marks)

       1.Write a program for file writing.

jkfile=open("biodata.txt","w")

ch='y'

while ch=='y':

          x=input("enter a name...")

          jkfile.write(x+"\n")

          ch=input("continue..[y/n]:")

jkfile.close()

       2.Write a program for file Reading.

jkfile=open("biodata.txt","r")

for i in jkfile:

    print(len(i))

    print(i)

jkfile.close()

       3.Write a program for file writing and file Reading

Tfile=open("hai.txt","w")

Tfile.write("hai\n")

Tfile.write("hello\n")

Tfile.write("how are you")

Tfile.close()

print("\n"*50)

Tfile=open("hai.txt","r")

for line in Tfile:

     print(line)

Tfile.close()