OSError: [WinError 193] %1 is not a valid Win32 application
The error is pretty clear. The file hello.py
is not an executable file. You need to specify the executable:
subprocess.call(['python.exe', 'hello.py', 'htmlfilename.htm'])
You'll need python.exe
to be visible on the search path, or you could pass the full path to the executable file that is running the calling script:
import sys
subprocess.call([sys.executable, 'hello.py', 'htmlfilename.htm'])
I got the same error while I forgot to use shell=True
in the subprocess.call
.
subprocess.call('python modify_depth_images.py', shell=True)
Running External Command
To run an external command without interacting with it, such as one would do with
os.system()
, Use thecall()
function.import subprocess Simple command subprocess.call(['ls', '-1'], shell=True)
Python installers usually register .py files with the system. If you run the shell explicitly, it works:
import subprocess
subprocess.call(['hello.py', 'htmlfilename.htm'], shell=True)
# --- or ----
subprocess.call('hello.py htmlfilename.htm', shell=True)
You can check your file associations on the command line with
C:\>assoc .py
.py=Python.File
C:\>ftype Python.File
Python.File="C:\Python27\python.exe" "%1" %*