lint: Fix rewrite scripts

scripts/dev/rewrite_enums.py

@@ -1,3 +1,5 @@
+# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
+
 """Rewrite PyQt enums based on rewrite_find_enums.py output."""
 
 
@@ -8,7 +10,7 @@ import re
 script_path = pathlib.Path(__file__).parent
 
 replacements = []
-with (script_path / 'enums.txt').open() as f:
+with (script_path / 'enums.txt').open(encoding="utf-8") as f:
     for line in f:
         orig, replacement = line.split()
         orig_re = re.compile(re.escape(orig) + r'(?=\W)')
@@ -19,8 +21,8 @@ for filename in sys.argv[1:]:
     path = pathlib.Path(filename)
     if path.suffix != '.py':
         continue
-    content = path.read_text()
+    content = path.read_text(encoding="utf-8")
     print(filename)
     for orig_re, replacement in replacements:
         content = orig_re.sub(replacement, content)
-    path.write_text(content)
+    path.write_text(content, encoding="utf-8")

scripts/dev/rewrite_find_enums.py

@@ -1,3 +1,5 @@
+# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
+
 """Find all PyQt enum instances."""
 
 
@@ -8,6 +10,7 @@ import PyQt5
 
 
 def find_enums(tree):
+    """Find all PyQt enums in an AST tree."""
     for node in ast.walk(tree):
         if not isinstance(node, ast.Assign):
             continue

scripts/dev/rewrite_find_flags.py

@@ -1,3 +1,5 @@
+# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
+
 """Find all PyQt flag instances."""
 
 import pathlib
@@ -7,6 +9,7 @@ import PyQt5
 
 
 def find_flags(tree):
+    """Find all PyQt flags in an AST tree."""
     for node in ast.walk(tree):
         if not isinstance(node, ast.FunctionDef):
             continue