2010-07-31 22:25:26 Petteri Räty napisał(a):
> On 07/31/2010 11:10 PM, Arfrever Frehtes Taifersar Arahesis wrote:
> >>
> >> If the variable is set but not exported then it is local to the shell
> >> env.  When bash goes to exec() python the local shell variables are
> >> not in the env; so os.environ() will not contain them.
> >>
> >> antarus@kyoto ~ $ foo=BAR
> >> antarus@kyoto ~ $ echo $foo
> >> BAR
> >> antarus@kyoto ~ $ python -c 'import os; print os.environ.get("foo")'
> >> None
> >> antarus@kyoto ~ $ export foo
> >> antarus@kyoto ~ $ python -c 'import os; print os.environ.get("foo")'
> >> BAR
> > 
> > I want only variables exported to Python processes.
> > 
> 
> export -p

It would have to be parsed using e.g. grep and sed. It's easier to call Python in this case.
The call to Python is sufficiently fast:

$ time python -c 'import os; print(os.environ.get("LC_ALL", os.environ.get("LC_CTYPE", os.environ.get("LANG", "POSIX"))))' > /dev/null

real    0m0.062s
user    0m0.051s
sys     0m0.011s

-- 
Arfrever Frehtes Taifersar Arahesis