Run script in interactive namespace from within Canopy

Question

From within the Canopy editor, how do I run a python script within the current interactive namespace?

Specifically, I have a large model object that takes a long time to load. I would like to instantiate the model in the interactive shell and then be able to run scripts that operate on the existing model. If I select the text in my script and click the "Run the selected text" button, everything works fine. Alternatively, if I type "run -i script.py" as suggested in this related question it also works fine. However, if I click the "Run the current file" button, the script appears to run in a clean namespace and cannot find any of the variables that already exist in the interactive shell.

This is the specific code that I am trying to use to only load the model on the first pass through the script.

# Only instantiating the model object if it does not already exist
if 'model' not in locals():
    model = TreeModel(filename)

Jonathan March · Accepted Answer · 2015-01-22 22:34:46Z

1

Click "Run the current file", then when it fails to run as desired, press the up arrow to recall the run command, insert the -i, and press Enter to re-run in ipython's interactive mode.

In theory, Canopy could be provided with this as yet another Run variant, but we want to avoid cluttering the UI with seldom-used options.

answered Jan 22, 2015 at 22:34

Jonathan March

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4 Comments

neal Over a year ago

I noticed that there is an "Arguments" field in the "Run Configurations" dialogue box, but it appears to be for arguments that are passed to the script itself. Would this be a logical place to add configurability for the run command itself?

Jonathan March Over a year ago

It could not be implemented reasonably in that field, would need to be in another similar field.

neal Over a year ago

Sorry for the ambiguous "this". Either an additional arguments field (or simply a checkbox if this is one of only a few common tweaks) in the "Run Configurations" dialogue box is what I was imagining. Thanks for letting me know to stop searching for an integrated way of doing this and providing a workaround.

Jonathan March Over a year ago

Got it. Submitted for feature request triage, in any case.

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