without shell

[Reinhold Birkenfeld]

Donn Cave wrote:

>> Not according the the docs:
>> 
>>   Also, for each of these variants, on Unix, cmd may be a
>>   sequence, in which case arguments will be passed directly to
>>   the program without shell intervention (as with os.spawnv()).
>>   If cmd is a string it will be passed to the shell (as with
>>   os.system()).
>> 
>> It's not exactly clear what "these variants" refer to, but I
>> read it as referring to all of the the os.popen functions.
>> 
>> Perhaps it only refers to os.popen[234]?
> 
> Right.  The paragraphs seem a little scrambled.  Note
> the use of "cmd" instead of "command" as the parameter
> is named for popen().  Also note "These methods do not
> make it possible to retrieve the return code from the
> child processes", after the popen() paragraph above tells
> you how to do it (using the better term "exit status".)
> 
> Or one may look at the source.

FYI, I checked in a little fix to the docs which makes clear
what functions the paragraphs pertain to. Also, I changed
"return code" to "exit status".

Reinhold