Communicating with external programs

My program needs to communicate with another program in Python. What I need my program to do is... execute
#login (username) (password)
in the shell, and see if the output login gives is "Success!" or "Failure.".
I think the system() function might help, but I don't know what it is or how to use it. What would you do?

I think I follow what your asking, try the example, and then apply it to your problem. Maybe it's what your looking for.

Code:

---

#include <process.h>

int main (void)
{
    _spawnl (_P_WAIT, "/windows/notepad.exe", "notepad", "ThisSourceFile.c", 0);
    return 0;
}

---

Look into the popen( ) command.

I don't know if Python can handle signals, but if Python it can look into signals.

Code:

---

ORIGINALLY POSTED BY DARKSTAR
include <process.h>

int main (void)
{
    _spawnl (_P_WAIT, "/windows/notepad.exe", "notepad", "ThisSourceFile.c", 0);
    return 0;
}

---

I COMPILE YOUR CODE AND I HAVE TOW ERROR
FIRST

Code:

---

fuction _spawlnl should have a prototype

---

second

Code:

---

udefined symbol _p_WAIT

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can you explain this darkstar ????

Enjoy, did you even compile this code? The errors you gave us do not even resemble the source code you posted.


You need to look into process.h. _spawnl is defined as spawnl for me and _P_WAIT is defined as P_WAIT in the header file. I use djgpp and winxp, and this is what is defined in the process.h file:


Here is my code that will work for DJGPP and winxp:

Code:

---

#include <process.h>

int main (void)
{
    spawnl (P_WAIT, "/windows/notepad.exe", "notepad", "ThisSourceFile.c", 0);
    return 0;
}

---

This simply executes notepad.exe.