Python , trying to open a command

Question

I have simple python code took from here only.It is

import os
os.system("start /WAIT cmd /c {ping google.com -t }")

My intention is ,I have to open a command prompt and then have to ping Google. Program should stopped when I close command prompt.

But , while I am doing with above code command prompt appearing but auto-closing.

I am not understanding what I have to do because I am pretty new.

I am using Python 2.7.6 in Windows 7 64-Bit.

Thank you.

falsetru · Accepted Answer · 2014-03-01 10:10:21Z

1

According to cmd /?, there's no mention about braces.

C:\>cmd /?
Starts a new instance of the Windows command interpreter

CMD [/A | /U] [/Q] [/D] [/E:ON | /E:OFF] [/F:ON | /F:OFF] [/V:ON | /V:OFF]
    [[/S] [/C | /K] string]

/C      Carries out the command specified by string and then terminates
/K      Carries out the command specified by string but remains
....

Remove braces that surround the ping command. Then it will works as you expected.

import os
os.system("start /WAIT cmd /c ping google.com -t")

answered Mar 1, 2014 at 10:10

falsetru

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