Read __version__ from metadata, remove __date__

Author: deeplook

src/svglib/__init__.py

@@ -53,7 +53,7 @@ def main():
         version=svglib.__version__,
         author=svglib.__author__,
         license=svglib.__license__,
-        copyleft_year=svglib.__date__[:svglib.__date__.find('-')],
+        copyleft_year=str(datetime.now().year),
         ts_pattern="{{dirname}}/out-"\
                    "{{now.hour}}-{{now.minute}}-{{now.second}}-"\
                    "%(base)s",

src/svglib/svglib.py

@@ -25,6 +25,7 @@
 import shutil
 from io import BytesIO
 from collections import defaultdict, namedtuple
+from importlib.metadata import version
 from PIL import Image as PILImage
 
 from reportlab.pdfbase.pdfmetrics import stringWidth
@@ -71,10 +72,12 @@ def find_font(font_name, weight='normal', style='normal'):
     return _fonts_find_font(font_name, weight, style)
 
 
-__version__ = '1.5.1'
+try:
+    __version__ = version("svglib")
+except ImportError:  # pragma: no cover
+    __version__ = "unknown"
 __license__ = 'LGPL 3'
 __author__ = 'Dinu Gherman'
-__date__ = '2023-01-07'
 
 XML_NS = 'http://www.w3.org/XML/1998/namespace'