Merge branch 'master' into 'master'

Add support for optparse's 'float' and 'complex' types.

Closes #452

See merge request pycqa/flake8!261

src/flake8/options/manager.py

@@ -156,6 +156,10 @@ class Option(object):
         value = self.normalize(value)
         if self.type == "int" or self.action == "count":
             return int(value)
+        elif self.type == "float":
+            return float(value)
+        elif self.type == "complex":
+            return complex(value)
         if self.action in ("store_true", "store_false"):
             value = str(value).upper()
             if value in ("1", "T", "TRUE", "ON"):

tests/unit/test_option.py

@@ -23,6 +23,16 @@ def test_to_optparse():
     assert optparse_opt.action == 'count'
 
 
+@pytest.mark.parametrize('opttype,str_val,expected', [
+    ('float', '2', 2.0),
+    ('complex', '2', (2 + 0j)),
+])
+def test_to_support_optparses_standard_types(opttype, str_val, expected):
+    """Show that optparse converts float and complex types correctly."""
+    opt = manager.Option('-t', '--test', type=opttype)
+    assert opt.normalize_from_setuptools(str_val) == expected
+
+
 @mock.patch('optparse.Option')
 def test_to_optparse_creates_an_option_as_we_expect(Option):  # noqa: N803
     """Show that we pass all keyword args to optparse.Option."""