the python shell window is already executing a command

Chris Angelico rosuav at
Fri Sep 19 21:47:40 CEST 2014

On Sat, Sep 20, 2014 at 5:43 AM, Terry Reedy <tjreedy at> wrote:
> On 9/18/2014 10:51 PM, Chris Angelico wrote:
>> On Fri, Sep 19, 2014 at 5:05 AM, Terry Reedy <tjreedy at> wrote:
>>> A couple more questions; after you run the file once, is there a warning
>>> above the first >>> prompt?  If, after the program stop and you see a
>>> second
>>>>>> prompt and run
>>>>>> import sys; len(sys.modules), 'array' in sys.modules
>>> what is the result?
>> What's significant about the array module here? I'm a little puzzled.
> 'array' is alphabetically the first module imported in the default
> two-process mode but not in the one-process mode selected by a command line
> '-n'.  To the best of my understanding, the message reported, which I found
> in the code, should only appear in one-process mode.
> Seymour reported that he started Idle by right-clicking on the file and
> selecting 'Edit with Idle'. Asking the above question is easier then trying
> to get him to directly determine what command line is associated with 'Edit
> with Idle' on his particular machine.

Ah! Nice one. :) Get the info you want with a very simple copy/paste
line of code. Cryptic, but effective.


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