fix warning with setuptools configuration

Author: thomas-mangin

pyproject.toml

@@ -5,7 +5,7 @@ description = 'BGP swiss army knife'
 authors = [
 	{ name = "Thomas Mangin", email = "[email protected]" },
 ]
-license = { 'file' = 'LICENCE.txt' }
+dynamic = ['license']
 requires-python = ">=3.8.1,<=3.13"
 keywords = [
 	'bgp',
@@ -21,7 +21,6 @@ classifiers = [
 	'Environment :: Console',
 	'Intended Audience :: System Administrators',
 	'Intended Audience :: Telecommunications Industry',
-	'License :: OSI Approved :: BSD License',
 	'Operating System :: POSIX',
 	'Operating System :: MacOS :: MacOS X',
 	'Programming Language :: Python',
@@ -76,7 +75,7 @@ docstring-code-format = true
 # E222 multiple spaces after operator
 # E231 missing whitespace after ','
 # E241 multiple spaces after ':'
-# E266 
+# E266
 # E501 line too long
 # W191
 # W503

setup.cfg

@@ -7,13 +7,12 @@ version = attr: exabgp.version.version
 description = BGP swiss army knife
 long_description = file: doc/README.rst, doc/CHANGELOG.rst
 keywords = BGP, ipv4, ipv6, mpls, vpls, flowspec, bgp-ls, SDN, HA, DDOS
-license = BSD 3-Clause License
+license = BSD-3-Clause
 classifiers =
 	Development Status :: 5 - Production/Stable
 	Environment :: Console
 	Intended Audience :: System Administrators
 	Intended Audience :: Telecommunications Industry
-	License :: OSI Approved :: BSD License
 	Operating System :: POSIX
 	Operating System :: MacOS :: MacOS X
 	Programming Language :: Python
@@ -24,10 +23,6 @@ classifiers =
 zip_safe = False
 include_package_data = True
 packages = find:
-package_dir=
-    =src
-install_requires =
-	setuptools
 
 [options.packages.find]
 where = src

setup.py

@@ -50,6 +50,8 @@ def filesOf(directory):
 
 
 setuptools.setup(
+    packages=setuptools.find_namespace_packages(where="src"),
+    package_dir={"": "src"},
     download_url=download_url,
     data_files=data_files,
 )