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Description:

entrypoint 2.1.0

entrypoint

Decorated functions as entry points.

In python, an entry point can be thought of as an explicit function
that gets called when the script is run directly from the console.
Defining an entry point requires some boilerplate code, which is
abstracted away by this library.
Installing
Python 3.8 or above is required.
pip
Installing the library with pip is quite simple:
$ pip install entrypoint

Alternatively, the library can be installed from source:
$ git clone https://github.com/nekitdev/entrypoint.git
$ cd entrypoint
$ python -m pip install .

poetry
You can add entrypoint as a dependency with the following command:
$ poetry add entrypoint

Or by directly specifying it in the configuration like so:
[tool.poetry.dependencies]
entrypoint = "^2.1.0"

Alternatively, you can add it directly from the source:
[tool.poetry.dependencies.entrypoint]
git = "https://github.com/nekitdev/entrypoint.git"

Examples
Decorated
Declare the main function as an entry point:
from entrypoint import entrypoint

@entrypoint(__name__)
def main() -> None:
print("Hello, world!")

Run the script directly from the console:
$ python file.py
Hello, world!

When importing the module, main does not get called:
>>> import file
>>> # no output

Note
Note that main gets called immediately, before any code below can be executed.
@entrypoint(__name__)
def main() -> None:
print("-> in main")

print("<- outside")

$ python note.py
-> in main
<- outside

Direct
It is possible to run main directly:
entrypoint(__name__).call(main)

This method allows to take control over where and when the function gets called.
Check
entrypoint also provides is_main function that resembles
the common (and de-facto standard) way of implementing entry points:
from entrypoint import is_main

if is_main(__name__):
print("Hello, world!")

Return
entrypoint expects main functions to not have arguments and return nothing.
Even though this is not checked at runtime, returning from main will cause
type-checkers to error!
Async
entrypoint does not provide any specific functionality to run async functions.
Instead, you can specify, for example, a main function that runs its async_main counterpart:
from async_extensions import run

async def async_main() -> None:
print("Hello, world!")

@entrypoint(__name__)
def main() -> None:
run(async_main())

Implicit
In case an entry point gets created without __name__ given, it is going to attempt
to fetch the module from the main function provided.
@entrypoint()
def main() -> None:
print("Hello, world!")

Please keep in mind that calling functions defined outside the __main__ module
will not work with implicit fetching.
Documentation
You can find the documentation here.
Support
If you need support with the library, you can send an email
or refer to the official Discord server.
Changelog
You can find the changelog here.
Security Policy
You can find the Security Policy of entrypoint here.
Contributing
If you are interested in contributing to entrypoint, make sure to take a look at the
Contributing Guide, as well as the Code of Conduct.
License
entrypoint is licensed under the MIT License terms. See License for details.