10/28/2023 0 Comments Python reload moduleBut usually you don't want to restart the REPL, so there are better ways. It works fine if you don't care about preserving the data that you already have in your session, like the functions that you wrote and the variables that you calculated. The easiest way is to quit your interactive session and start it again. So, if I can't reimport a module, does it mean that I have to restart Python each time? Not really, that would be very inconvenient. You can read more about how importing works in the documentation. Which means that, if you already imported the module (or imported a different module that references this one) and you try to import it again, Python will ignore this request. And only if it's not there, it actually imports the module.First, it checks if the module is already cached in the sys.module dictionary.Turns out that, for efficiency reasons, when you import a module in an interactive Python session, Python interpreter does two steps: It doesn't matter if you use the standard Python REPL or IPython. If you already imported a module ( import a_module) or a function ( from a_module import a_function) in your Python session and you try to import it again, nothing will happen. It turns out, as StackOverflow kindly explained, that you can't just reimport a module. That's fine - I thought - I will just fix the module and reimport it.īut, to my surprise, calling from my_module import my_function didn't update the code! my_function still had the bug that I just fixed! I double-checked if I modified the correct file, reimported it again and still nothing. As it usually happens, when I was testing it in the interactive Python REPL, the first version turned out to have some bugs (the second and third ones also did □). Writing my first module in Python was a confusing experience. alias = "sas" # List of tool classes associated with this toolbox label = "Spatial Analyst Supplemental Tools" append (myScripts ) from dendrogrampdf import CreateDendrogramįrom viewshedalongpath import ViewshedAlongPathįrom maxelevation import MaximumUpstreamElevationįrom filledcontours import FilledContoursįrom eraserastervalues import EraseRasterValuesįrom zonalstatisticsastable02 import ZonalStatisticsAsTable02įrom tabulatearea02 import TabulateArea02Ĭlass Toolbox (object ) : def _init_ (self ) : """Define the toolbox (the name of the toolbox is the name of the. So my question is how do you reload a module when the importing of it is in the format of "from peaktool import Peak" and where would one put the reload statement in the code? Below is the Python toolbox code. So the help page gives advice but does not explicity show you how to do it! If I type reload(peaktool) it says "name 'peaktool' is not defined". But the import statement is "from peaktool import Peak". I think this is my problem none of my changes are being refreshed. I looked at help and found this page and in the tip section it talks about imported modules needing reloading. I am use to creating python script tools but not a Python toolbox.Īnyway every time I tweak the code in the Peak tool and try to run it, it's as if the tool has been cached and none of my tweaks run. I know a little bit of Python and thought I would have a crack at debugging it, primarily to teach myself how to use a Python toolbox. I have downloaded the Spatial Analyst Supplemental Tools which is a Python Toolbox and there appears to be a bug in the Peak tool.
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