How to execute a python script from another python script?

[somialis]

I have a test environment in python. it is executed by the following command on the command prompt.
1) First i have to go to the dir where the .py file is
2) then i simply execute python filename.py and the GUI appears

Now i have to create a script which could open the GUI...i.e execute the command "python filename.py" from inside itself.. I tried the "system" command inside my script but the GUI did not appear.i.e i tried
system("python filename.py") but nothing appeared on the screen

Plz help.

[dshimer]

Forgive me if this seems too elementary, but without full code or output to examine I am stretching, did you import os? For example if test.py contains

import os
os.system('python hello.py')

and hello.py just prints hello, then

C:\tmp>python test.py
hello

should do what you are asking unless there are other path or module issues. When you say the GUI doesn't appear, does anything happen? Are there errors?
The python "Process Management" docs may be of help.

[ghostdog74]

Forgive me if this seems too elementary, but without full code or output to examine I am stretching, did you import os? For example if test.py contains

import os
os.system('python hello.py')

and hello.py just prints hello, then

C:\tmp>python test.py
hello

should do what you are asking unless there are other path or module issues. When you say the GUI doesn't appear, does anything happen? Are there errors?
The python "Process Management" docs may be of help.

to run another python script from your script:

import myscript
myscript.somefunc()
 

just like importing the standard modules.

[somialis]

Forgive me if this seems too elementary, but without full code or output to examine I am stretching, did you import os? For example if test.py contains

import os
os.system('python hello.py')

and hello.py just prints hello, then

C:\tmp>python test.py
hello

should do what you are asking unless there are other path or module issues. When you say the GUI doesn't appear, does anything happen? Are there errors?
The python "Process Management" docs may be of help.

Thanx for the prompt reply...but as u have asked...i had already imported os and executedthe following command from my python script:
os.system("pyth on filename.py")

no error message was flagged and the command was successfully executed leading to the command prompt again but the GUI did not appear.
What could be the probable reason.??
Initially i used to run the GUI by simply typing:
python filename.py

[bartonc]

Thanx for the prompt reply...but as u have asked...i had already imported os and executedthe following command from my python script:
os.system("pyth on filename.py")

no error message was flagged and the command was successfully executed leading to the command prompt again but the GUI did not appear.
What could be the probable reason.??
Initially i used to run the GUI by simply typing:
python filename.py

Is your GUI Tkinter, or some other toolkit?

[somialis]

Is your GUI Tkinter, or some other toolkit?

i don't know about the tool kit...
it was made for some testing puposes. i load my test files into that and press a runtest button.

[bartonc]

I have a test environment in python. it is executed by the following command on the command prompt.
1) First i have to go to the dir where the .py file is
2) then i simply execute python filename.py and the GUI appears

Now i have to create a script which could open the GUI...i.e execute the command "python filename.py" from inside itself.. I tried the "system" command inside my script but the GUI did not appear.i.e i tried
system("python filename.py") but nothing appeared on the screen

Plz help.

By any chance, do you give command line arguments when you call python manually? If so, try

system("python filename.py arg1 arg2") 

[somialis]

By any chance, do you give command line arguments when you call python manually? If so, try

system("python filename.py arg1 arg2") 

no there are no command line arguments . i just run python filename.py from the command prompt while running the GUI manually.

[ghostdog74]

no there are no command line arguments . i just run python filename.py from the command prompt while running the GUI manually.

personally, i would not recommend this method of calling a python script from anther. The "cleaner" approach is to import it.
for example , in script called myscriptA.py, you have

def displayGUI():
     print "I am from myscriptA.py in functoin displayGUI"
     return
 

then in myscriptB.py, you can call your GUI display function like this

import myscriptA ##or from myscriptA import displayGUI
myscriptA.displayGUI()
 

[Thekid]

Hi, I'm just trying to follow along and had a question.....is it that your script will run in a dos window but what you want is for it to run on IDLE?

ex:

>>> for i in range(5):
             print i
 
 
1
2
3
4
>>>
 
 

so if your saved that script as loop.py:

for i in range(5):
    print i
 

and then wrote:

import os,sys
os.system(r"C:\python25\loop.py")
 

then saved it as testrun.py. If you execute testrun.py, it runs the loop in a dos window but you want it to execute and print out to IDLE instead? Is that it, or am I on the wrong track in trying follow?