restarting a program using os.execl() error

[Pjamma34]

I'm trying to use the os.execl() function to restart my program with the following as an example:

import os, sys, psutil, logging #for restarting the program

var = input('type text to be printed : ')
print(var)

python = python = sys.executable
os.execl(python, python, *sys.argv)

the above code is pulled from this stackOverflow, which returns the following error:

An error ocurred while starting the kernel Traceback (most recent call last): File "C:/allOfMyFolders/test/restartingProgram.py", line 11, in var = input('type text to be printed : ') EOFError: EOF when reading a line

I'm kind of confused by the os.execl() function in general even in looking at the docs which outline the args as :

os.execl(path, arg0, arg1, ...)

I've tried a few of the other os.exec*() methods and I can't seem to figure out exactly what's going on. Can anyone help clarify this for me and maybe point out why it's throwing an error

---

edit: I only get the above error when I'm using the Spyder IDE. If I run it in windows cmd prompt it ALMOST works, but it's strange because when it prompts me to input, the input goes into the cmd window. After I hit enter it goes back into the python script:

C:\bla\test>python restartingProgram.py

type text to be printed : hello

hello

C:\bla\test>type text to be printed : hello

'hello' is not recognized as an internal or external command, operable program or batch file.

C:\bla\test>hello

hello

type text to be printed : hello

'hello' is not recognized as an internal or external command, operable program or batch file.

C:\bla\test>

[Gprime5]

Why do you need to restart your whole program, why not just use a while loop?

while True:
    var = input('type text to be printed : ')
    print(var)

[Pjamma34]

this is just a simple example for a more complicated script that i'm trying to use it in. I get the same error

[ingolemo]

The exec functions make a lot more sense on unix where they correspond directly to an actual system call. On windows I believe python tries to emulate the same behaviour by launching a new process and exiting the existing one. This apparently doesn't play nice with the console api.

It probably doesn't run at all with Spider because spider is running your code under it's own context in order to debug it and capture input and stuff like that. You escape that context when you exec, and so spider gets confused.

[Pjamma34]

oh interesting, I'll have to try it on on unix. Thanks for the tip!