On Tue, Feb 12, 2013, at 12:12 AM, contro opinion wrote:
import os
os.system(i=3)
0
os.system(echo $i)
0
why i can't get the value of i ?
Whenever you call os.system, a new shell is created and the command is
run, system() then waits for the command to complete.
You don't see i because your two system() calls are in two different
processes:
python import os
python os.system('echo $$')
24294
0
python os.system('echo $$')
24295
0
However, ths (e.g.) would work:
python os.system('i=3; echo $i')
3
0
HTH,
-a
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