add ruff configuration, editorconfig

Author: deltragon

.editorconfig

@@ -0,0 +1,13 @@
+# top-most EditorConfig file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+indent_style = space
+indent_size = 4
+
+[*.{py}]
+trim_trailing_whitespace = true

ruff.toml

@@ -0,0 +1,17 @@
+target-version = "py310"
+
+# gettext
+builtins = ["_"]
+
+[lint]
+select = ["E", "W", "F", "D2", "D3", "D4"]
+ignore = [
+    # PyGObject needs require_version before imports
+    "E402",
+
+    # these are disabled for now, but should probably be cleaned up at some point
+    "D205", "D401", "D404",
+]
+
+[lint.pydocstyle]
+convention = "numpy"