rfctr(lint): tune in ruff settings

pyproject.toml

@@ -39,6 +39,7 @@ Homepage = "https://github.com/python-openxml/python-docx"
 Repository = "https://github.com/python-openxml/python-docx"
 
 [tool.black]
+line-length = 100
 target-version = ["py37", "py38", "py39", "py310", "py311"]
 
 [tool.pytest.ini_options]
@@ -69,6 +70,10 @@ python_functions = ["it_", "its_", "they_", "and_", "but_"]
 
 [tool.ruff]
 exclude = []
+line-length = 100
+target-version = "py38"
+
+[tool.ruff.lint]
 ignore = [
     "COM812",   # -- over-aggressively insists on trailing commas where not desired --
     "PT001",    # -- wants @pytest.fixture() instead of @pytest.fixture --
@@ -88,9 +93,8 @@ select = [
     "UP032",    # -- Use f-string instead of `.format()` call --
     "UP034",    # -- Avoid extraneous parentheses --
 ]
-target-version = "py37"
 
-[tool.ruff.isort]
+[tool.ruff.lint.isort]
 known-first-party = ["docx"]
 known-local-folder = ["helpers"]
 

src/docx/image/tiff.py

@@ -98,11 +98,7 @@ def _dpi(self, resolution_tag):
             return 72
 
         # resolution unit defaults to inches (2)
-        resolution_unit = (
-            ifd_entries[TIFF_TAG.RESOLUTION_UNIT]
-            if TIFF_TAG.RESOLUTION_UNIT in ifd_entries
-            else 2
-        )
+        resolution_unit = ifd_entries.get(TIFF_TAG.RESOLUTION_UNIT, 2)
 
         if resolution_unit == 1:  # aspect ratio only
             return 72

tests/unitutil/cxml.py

@@ -89,7 +89,7 @@ def from_token(cls, token):
         Return an ``Element`` object constructed from a parser element token.
         """
         tagname = token.tagname
-        attrs = [(name, value) for name, value in token.attr_list]
+        attrs = [tuple(a) for a in token.attr_list]
         text = token.text
         return cls(tagname, attrs, text)
 
@@ -263,9 +263,7 @@ def grammar():
     child_node_list << (open_paren + delimitedList(node) + close_paren | node)
 
     root_node = (
-        element("element")
-        + Group(Optional(slash + child_node_list))("child_node_list")
-        + stringEnd
+        element("element") + Group(Optional(slash + child_node_list))("child_node_list") + stringEnd
     ).setParseAction(connect_root_node_children)
 
     return root_node