It’s fine for quick and dirty scripting, but once you are over 20-or-so lines of code, you should switch to an external text editor (of your choice). Maintainability matters!Īnother habit you should say goodbye to is using Maya’s script editor. And, apart from very simple utility libraries, your tools should not be written as a single python file. Now, you can scatter your code base with a bunch of reloads, but it’s bad practice and, eventually, you will mess up. What this built-in function does is, it reloads a single file modules. What we basically do by restarting Maya each time is we introduced the “compilation step”!Īs Raymond Hettinger would say: there must be a better way! But firstly… Python is supposed to be fast to iterate and fast to prototype with. I’ve done it myself! It’s needed because once imported, python module lives in memory and to refresh the memory you need to close the session and start anew.īut this is a huge waste of time. In some cases, it may be simpler to restart the interpreter or modify your program to avoid the need to reload modules.Far too often I’ve seen TDs close Maya and reopen it just to check how the changes they made to the tool they are creating is now running. In general, reloading a module can be a useful tool for development and testing, but it should be used with care. You should be careful when using reload() and test your code thoroughly to ensure that reloading the module does not have unintended side effects. For example, if the module creates threads or modifies global state, reloading the module may not be safe. In some cases, reloading a module can have unexpected consequences or even cause your program to crash.For example, if my_module imports other_module, you may need to reload other_module before reloading my_module. If the module has dependencies on other modules, you may need to reload those modules as well. ![]() To work around this, you may need to create a new instance of the class after reloading the module. For example, if you have created an instance of a class from the module, the instance will still reference the old class definition even after you reload the module. If you have used functions or classes from the module in your code, reloading the module may not have the desired effect.If the module has not been imported, there is no bytecode to reload. ![]() You must first import the module you want to reload.Here are some things to keep in mind when using the reload() function: ![]() Once the module is reloaded, any changes you made to it will be reflected in your program. After importing the importlib module, you can use the reload() function to reload the my_module module. In this example, my_module is the module you want to reload. # make some changes to the my_module module Import importlib # import the importlib module Here’s an example of how to reload a module: import my_module # import the module you want to reload The reload() function allows you to reload a previously imported module, which is useful when you have made changes to the module and want to see the changes reflected in your program without restarting the interpreter. In Python, you can reload a module using the reload() function from the importlib module. In this article, you will learn how to reload a module in Python.
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