Beginning Ethical Hacking with Python

© Sanjib Sinha 2017

Sanjib Sinha, Beginning Ethical Hacking with Python, 10.1007/978-1-4842-2541-7_17

17. File Input And Output

Sanjib Sinha¹ 

(1)Howrah, West Bengal, India

Python has some built-in functions for dealing with files. You can open a file and read what is inside. You can write a file. That file could be a text file or a picture.

Each time we use the open() method and pass the mode as an argument. For reading a file we write “r” and for write we use “w”. Let us consider a code where in an object we read a file and write it on another file using another object in the next step.

<code>infile = open('files.txt', 'r')              outfile = open('new.txt', 'w')              for line in infile:                  print(line, file=outfile)        print("Done")              </code>

If we copy this way the ...