proper module with setup.py

+ 2 bugfixes ("T" and channels)

setup.py

@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+from setuptools import setup
+from icnsutil import __doc__, __version__
+
+with open('README.md') as fp:
+    longdesc = fp.read()
+
+setup(
+    name='icnsutil',
+    description=__doc__.strip(),
+    version=__version__,
+    author='relikd',
+    url='https://github.com/relikd/icnsutil',
+    license='MIT',
+    packages=['icnsutil'],
+    entry_points={
+        'console_scripts': [
+            'icnsutil=icnsutil.cli:main'
+        ]
+    },
+    extras_require={
+        'convert': ['Pillow'],
+    },
+    long_description_content_type="text/markdown",
+    long_description=longdesc,
+    python_requires='>=3.2',
+    keywords=[
+        'icns',
+        'icon',
+        'extract',
+        'compose',
+        'create',
+    ],
+    classifiers=[
+        'Development Status :: 5 - Production/Stable',
+        'Environment :: Console',
+        'Environment :: MacOS X',
+        'License :: OSI Approved :: MIT License',
+        'Operating System :: OS Independent',
+        'Programming Language :: Python',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3 :: Only',
+        'Programming Language :: Python :: 3.2',
+        'Programming Language :: Python :: 3.3',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
+        'Topic :: Desktop Environment',
+        'Topic :: Multimedia :: Graphics :: Graphics Conversion',
+        'Topic :: Software Development :: Libraries :: Python Modules',
+        'Topic :: Utilities',
+    ],
+)