I have to call a long run process from a bottle script (web framework like Django).
So in a bottle script i have
os.system("python /home/tom/Documents/proc_test/main.py")
Anyway the main.py script is not executed. How can i call a python script from another running python program?
P.S: in python shell interpreter i have write os.system("python /home/tom/Documents/proc_test/main.py") and the file is called
Like Dirk suggested, import the main.py from python then call the function.
Or if you need to actually run main.py as a separate process then use subprocess module.
import subprocess
subprocess.call(["python /home/tom/Documents/proc_test/main.py"])
Hope this helps
os.system ?
python /home/tom/Documents/proc_test/main.pyrun via subprocess if it does not via os.system() ?You can import the python script directly via full path using importlib.
Lets assume this example main.py:
def func():
print("func called")
In your main script, you import as follows:
import importlib as imp
spec = imp.util.spec_from_file_location('d', '/home/tom/Documents/proc_test/main.py')
foo = imp.util.module_from_spec(spec)
spec.loader.exec_module(foo)
foo.func()
Output:
func called
execit ?exec(open("/home/tom/Documents/proc_test/main.py").read())It will work only if the file is executable though. Not related, but I prefer to use thesubprocessmodule to execute binaries.os.systemorsubprocess. But unless you have a compelling reason to run it as a distinct process, you should probably just import the script as a module and call it's entry point (assuming it's correctly written so it can be used that way).