Python stdin filename

Question

I\'m trying to get the filename thats given in the command line. For example:

python3 ritwc.py < DarkAndStormyNight.txt

I\'m

Answer 1

In fact, as it seams that python cannot see that filename when the stdin is redirected from the console, you have an alternative:

Call your program like this:

python3 ritwc.py -i your_file.txt

and then add the following code to redirect the stdin from inside python, so that you have access to the filename through the variable "filename_in":

import sys 

flag=0
for arg in sys.argv:
    if flag:
        filename_in = arg
        break
    if arg=="-i":
        flag=1
sys.stdin = open(filename_in, 'r')

#the rest of your code...

If now you use the command:

print(sys.stdin.name)

you get your filename; however, when you do the same print command after redirecting stdin from the console you would got the result: , which shall be an evidence that python can't see the filename in that way.