9/5/2023 0 Comments Python reload module![]() ![]() The above StackOverflow answer recommends appending to sys.path which works just fine but leaves a more comprehensive system to be desired. This is a real bummer for large Blender applications. Unfortunately this override seems to break some functionality including relative imports and simply makes other tasks like how to structure a multi-file project confusing. This allows it to support nifty features like code files being text datablocks and inline python snippets in other parts of the application. Blender decides to forgo this setup for its own implementation with the intention of making their own integration work better with the way Blender handles its data. Instead of interfacing with this directly, Python provides importlib in Python 3.4+ (previously imp in Python < 3.4) to make interfacing with _import_() much easier. This syntax ultimately compiles to various forms of the _import_() function. In a nutshell, Python's module importing/loading comes bundled in the from. This is my deep dive into Blender's Python import integration where at the end I provide a small module to make your future Blender importing life easier. Python provides a lot of functionality to import all different kinds of source and data files but Blender's implementation makes design decisions that create issues. This is due to the many quirks of Blender's own internal Python environment. A simple problem becomes an arduous trek through docs, examples, and sometimes the C API to find the Blender way to write given Python code. ![]() Otherwise, it is imported as a module.Python in Blender can be tiring. If true, it will mean that the module is run as a script. So, we add the following code where we check if the value of _name_ is equal to _main_. If this file is imported as a module, _name_ will be set to the name of the module. If the module is run as a script file, the python interpreter sets the special variable _name_ to the value _main_. So, how do we differentiate between when we run the module as a script and when the file is imported as a module? You may have noticed that we got the same output when we imported the printer.py module in the Reloading a module section. We can execute a module ( printer.py in our case) using cmd on Windows or terminal on Linux/Mac and run the following command. So, like any script file, the module can also be executed. We already know that a module in Python is simply a Python script file with extension. These are the default built-in python attributes provided to the module. Here, apart from the names defined inside the module factorial, we get names with underscores.
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