Question

I want to escape ‘”‘ and all other wild chars in program name and arguments, so I try to double quote them. and I can do this in cmd.exe

C:\bay\test\go>"test.py" "a" "b"  "c"
hello
['C:\\bay\\test\\go\\test.py', 'a', 'b', 'c']

but what’s wrong with the following code using os.sytem?

cmd = '"test.py" "a" "b" "c"'
print cmd
os.system(cmd)

its output:

C:\bay\test\go>test2.py
"test.py" "a" "b" "c"
'test.py" "a" "b" "c' is not recognized as an internal or external command,
operable program or batch file.

Why is the whole string ‘”test.py” “a” “b” “c”‘ recognized as a single command? But the following example isn’t:

cmd = 'test.py a b c'
print cmd
os.system(cmd)

C:\bay\test\go>test2.py
test.py a b c
hello
['C:\\bay\\test\\go\\test.py', 'a', 'b', 'c']

Thanks!

Answer 1

Try with os.system('python "test.py" "a" "b" "c"')

You can also use subprocess module for that kind of purpose,

please take a look this thread

UPDATE:When I do, os.system('"test.py" "a" "b" "c"'), I got similar errors, but not on os.system('test.py "a" "b" "c"'), So, I like to assume that first parameter should not be double-quoted