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| Date | Sun, 17 Feb 2013 00:00:23 -0700 |
| Subject | Re: call from pthon to shell |
| From | Jason Friedman <jsf80238@gmail.com> |
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>>>> import os
>>>> os.system("i=3")
> 0
>>>> os.system("echo $i")
>
> 0
>
> why i can not get the value of i?
Each call to os.system starts a new shell. Think about what would
happen if you opened a terminal and typed:
$ i=3
Then, close that terminal and open a new one. You would not be surprised that
$ echo $i
returns nothing.
And, as mentioned by Andrew, even absent that problem os.system is not
the way to obtain the data you are looking for.
I realize this is now 5 days after you posted ... what were you
ultimately attempting to accomplish?
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Re: call from pthon to shell Jason Friedman <jsf80238@gmail.com> - 2013-02-17 00:00 -0700
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