PYTHON: Update installation script.

Signed-off-by: Grzegorz Kowal <grzegorz@amuncode.org>

python/setup.py

@@ -3,7 +3,7 @@ from setuptools import setup
 setup(
 	name='amunpy',
 	description='Python Interface fo AMUN snapshots',
-	version='0.3',
+	version='0.4',
 	author='Grzegorz Kowal',
 	author_email='grzegorz@amuncode.org',
 	url='https://www.amuncode.org/',
@@ -13,5 +13,6 @@ setup(
 	extras_require={
 		"digest": ['xxhash'],
 		"interpolation": ['scipy'],
+		"compression": ['lz4', 'zstandard'],
 	}
 )