The Python approach to "main" is almost unique to the language (*). The semantics are a bit subtle. The __name__ identifier is bound to the name of any module as it's being imported. …

Jan 7, 2009 · You should see that, where __name__, where it is the main file (or program) will always return __main__, and if it is a module/package, or anything that is running off some …

Oct 28, 2010 · main(sys.argv) This means you can call main() from other scripts (or interactive shell) passing custom parameters. This might be useful in unit tests, or when batch …

Oct 28, 2010 · 213 What is the __main__.py file for? When creating a Python module, it is common to make the module execute some functionality (usually contained in a main function) …

A function is created from the code for main, and then the name main is bound to that function There is nothing to call the functions, so they aren't called. Since they aren't called, the code …

For example you can have the main function directly at the beginning of the file, while additional functions that are called within it are defined further into the file. And the very last part of the …

python main.py --product_id 1001028 To access the argument product_id, we need to declare it first and then get it:

Feb 8, 2016 · Execute the Python code contained in script, which must be a filesystem path (absolute or relative) referring to either a Python file, a directory containing a __main__.py file, …

Oct 28, 2016 · There is really no such concept of "main" as e.g. in Java. As Python is interpreted, all lines of code are read and executed when importing/running the module. Python provides …

Jan 23, 2011 · @delnan: __main__ is a module, and each module has an associated scope. Try import __main__; type(__main__) in the interpreter (not in IPython).