Python file object, file seek and tell methods

Display the file name, mode

 
      file=open("test1.txt","r")
  print(file.name,file.mode,file.closed)
  file.close()

Output

Reading every line from the file test1

 
      file=open("test1.txt","r")
  for line in file:
      print(line[:-1])
  
  file.close()

Output

Exercise - Reading every line from the file and displaying student name and faculty name alone

 
    
  file=open("test1.txt","r")
  for line in file:
      k=line.split(",")
      print("The student name is ",k[1])
      print("The faculty name is ",k[3])
  
  file.close()

Output

Read and display only students who have faculty members with doctorate degrees

 
      first 9 characters is reg number 
  next six characters is name
  next 7 characters is location 
  next 10 characters is faculty name

Output

Read BIT from the file

 
      file=open("test2.txt","r")
  file.seek(35,0)
  k=file.readline(3)
  file.close()
  print(k)

Output

Tell where the cursor is after the read

 
      file=open("test2.txt","r")
  file.seek(35,0)
  k=file.readline(3)
  print(file.tell())
  file.close()
  print(k)

Output

Seeking the faculty name using 1

 
      file=open("test2.txt","br")
  file.seek(35,0)
  k=file.readline(3)
  print(k)
  print(file.tell())
  file.seek(16,1)
  facultyname=file.read(10)
  print(facultyname)
  file.close()
  
  seeking from the end of the file 
  file=open("test2.txt","br")
  file.seek(-10,2)
  k=file.read()
  print(k)
  file.close()

Output

Seeking in the reverse direction from the current location

 
      file=open("test2.txt","br")
  file.seek(2,0)
  k=file.read(3)
  print(k)
  file.seek(-3,1)
  k=file.read(3)
  print(k)
  file.close()