Hello group! I'm a Python beginner. I'm trying to call ImageMagick's convert program from my code. My OS is Debian testing, and my version of Python is 2.5.
I've just stumbled upon a problem: (1) subprocess.call('convert in.png -resize 640x480 out.png', shell = True) works, but none of the following does: (2) subprocess.call('convert in.png -resize 640x480 out.png') (3) subprocess.call(['convert', 'in.png', '-resize 640x480', 'out.png']) (4) subprocess.call(['convert', 'in.png', '-resize 640x480', 'out.png'], shell = True) In these cases, convert program says 'unrecognized option -resize 640x480'. At the same time, subprocess.call(['ls', '-l']) works as expected. I'd like to use variant (3), as it seems the most handy. I don't understand why is shell = True required in case of convert. Is it a bug in Python, in ImageMagick, or am I missing something very basic here? Any hint appreciated. Andrey -- http://mail.python.org/mailman/listinfo/python-list