remove ability to pass multiple keys to extract_as_list

This makes the typing annotations basically impossible to get right, but
if we only have one key then it's easy. Fortunately python provides
comprehensions, so we don't even need the ability to pass multiple keys,
we can just [extract_as_list(kwargs, c) for c in ('a', 'b', 'c')] and
get the same result.

1 files changed, 2 insertions, 4 deletions

diff --git a/run_unittests.py b/run_unittests.py
index b39ba28..adfd927 100755
--- a/run_unittests.py
+++ b/run_unittests.py
@@ -706,17 +706,15 @@ class InternalTests(unittest.TestCase):
         self.assertEqual(kwargs, {'sources': [1, 2, 3]})
         self.assertEqual([1, 2, 3], extract(kwargs, 'sources', pop=True))
         self.assertEqual(kwargs, {})
+
         # Test unholding
         holder3 = ObjectHolder(3)
         kwargs = {'sources': [1, 2, holder3]}
         self.assertEqual(kwargs, {'sources': [1, 2, holder3]})
-        # Test listification
-        kwargs = {'sources': [1, 2, 3], 'pch_sources': [4, 5, 6]}
-        self.assertEqual([[1, 2, 3], [4, 5, 6]], extract(kwargs, 'sources', 'pch_sources'))
 
         # flatten nested lists
         kwargs = {'sources': [1, [2, [3]]]}
-        self.assertEqual([1, 2, 3], extract(kwargs, 'sources', flatten=True))
+        self.assertEqual([1, 2, 3], extract(kwargs, 'sources'))
 
     def test_pkgconfig_module(self):