Simplified package metadata handling.

backtranslate/__init__.py

-from os.path import dirname, abspath
-
-from configparser import ConfigParser
+from pkg_resources import get_distribution
 
 from .backtranslate import BackTranslate
 
 
-config = ConfigParser()
-with open('{}/setup.cfg'.format(dirname(abspath(__file__)))) as handle:
-    config.read_file(handle)
+def _get_metadata(name):
+    pkg = get_distribution(__package__)
+
+    for line in pkg.get_metadata_lines(pkg.PKG_INFO):
+        if line.startswith('{}: '.format(name)):
+            return line.split(': ')[1]
+
+    return ''
+
 
-_copyright_notice = 'Copyright (c) {} {} <{}>'.format(
-    config.get('metadata', 'copyright'),
-    config.get('metadata', 'author'),
-    config.get('metadata', 'author_email'))
+_copyright_notice = 'Copyright (c) {} <{}>'.format(
+    _get_metadata('Author'), _get_metadata('Author-email'))
 
-usage = [config.get('metadata', 'description'), _copyright_notice]
+usage = [_get_metadata('Summary'), _copyright_notice]
 
 
 def doc_split(func):
@@ -23,7 +25,5 @@ def doc_split(func):
 
 def version(name):
     return '{} version {}\n\n{}\nHomepage: {}'.format(
-        config.get('metadata', 'name'),
-        config.get('metadata', 'version'),
-        _copyright_notice,
-        config.get('metadata', 'url'))
+        _get_metadata('Name'), _get_metadata('Version'), _copyright_notice,
+        _get_metadata('Home-page'))

backtranslate/setup.cfg

-../setup.cfg
\ No newline at end of file

backtranslate/util.py

@@ -11,7 +11,7 @@ def _three_to_one():
 
 
 def subst_to_cds(substitutions, offset):
-    """ Convert a set of substitutions to CDS coordinates.
+    """Convert a set of substitutions to CDS coordinates.
 
     :arg dict substitutions: Set of single nucleotide substitutions indexed by
         position.

setup.cfg

 [metadata]
 name = backtranslate
-version = 0.1.1
+version = 0.1.2
 description = Functions for reverse translation.
 long_description = file: README.rst
 author = LUMC, Jeroen F.J. Laros
@@ -9,20 +9,22 @@ url = https://github.com/mutalyzer/backtranslate
 keywords = bioinformatics
 license = MIT
 classifiers =
+    Intended Audience :: Developers
+    Intended Audience :: Science/Research
+    Operating System :: OS Independent
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
-copyright = 2015-2019
+    Topic :: Scientific/Engineering
 
 [options]
 packages = find:
 install_requires =
-    biopython
-    configparser
-    python-Levenshtein
-
-[options.package_data]
-backtranslate = setup.cfg
+    biopython==1.76
+    python-Levenshtein==0.12.0
+tests_require =
+    fake-open==0.0.1
+    pytest==4.0.1
 
 [options.entry_points]
 console_scripts =

tests/test_backtranslate.py

-"""
-Tests for the backtranslate.backtranslate module.
-"""
-from __future__ import (
-    absolute_import, division, print_function, unicode_literals)
-from future.builtins import str, zip
-
+"""Tests for the backtranslate.backtranslate module."""
 from backtranslate.backtranslate import BackTranslate, cmp_subst
 
 
 class TestParser(object):
-    """
-    Test the backtranslate.backtranslate module.
-    """
+    """Test the backtranslate.backtranslate module."""
     def setup(self):
         self.bt = BackTranslate()
 

tests/test_cli.py

-"""
-Tests for the backtranslate CLI.
-"""
-from __future__ import (
-    absolute_import, division, print_function, unicode_literals)
-from future.builtins import str, zip
-
+"""Tests for the backtranslate CLI."""
 import sys
 
 from hashlib import md5
@@ -16,9 +10,7 @@ from backtranslate import cli
 
 
 class TestParser(object):
-    """
-    Test the backtranslate.backtranslate module.
-    """
+    """Test the backtranslate.backtranslate module."""
     def setup(self):
         self._input = open('data/mhv.fa')
         self._output = StringIO()