create_spell_checker function to satisfy flake8

Author: dave3d

comment_spell_check.py

@@ -163,7 +163,7 @@ def spell_check_comment(
                     break
 
                 # remove the prefix
-                wrd = error_word[len(pre) :]
+                wrd = error_word[len(pre):]
                 if output_lvl > 1:
                     print(f"Trying without '{pre}' prefix: {error_word} -> {wrd}")
                 try:
@@ -412,38 +412,49 @@ def add_dict(enchant_dict, filename, verbose=False):
             enchant_dict.add(wrd)
 
 
-def main():
-    args = parse_args()
+def create_spell_checker(args, output_lvl):
+    """Create a SpellChecker."""
 
-    sitk_dict = Dict("en_US")
-
-    # Set the amount of debugging messages to print.
-    output_lvl = 1
-    if args.brief:
-        output_lvl = 0
-    else:
-        if args.verbose:
-            output_lvl = 2
-    if args.miss:
-        output_lvl = -1
+    my_dict = Dict("en_US")
 
     # Load the dictionary files
     #
     initial_dct = Path(__file__).parent / "additional_dictionary.txt"
     if not initial_dct.exists():
         initial_dct = None
     else:
-        add_dict(sitk_dict, str(initial_dct), any([args.brief, output_lvl >= 0]))
+        add_dict(my_dict, str(initial_dct), any([args.brief, output_lvl >= 0]))
 
     if args.dict is not None:
         for d in args.dict:
-            add_dict(sitk_dict, d, any([args.brief, output_lvl >= 0]))
+            add_dict(my_dict, d, any([args.brief, output_lvl >= 0]))
 
+    # Load the bibliography files
+    #
     if args.bibtex is not None:
         for bib in args.bibtex:
-            bibtex_loader.add_bibtex(sitk_dict, bib, any([args.brief, output_lvl >= 0]))
+            bibtex_loader.add_bibtex(my_dict, bib, any([args.brief, output_lvl >= 0]))
+
+    # Create the SpellChecker
+    spell_checker = SpellChecker(my_dict, filters=[EmailFilter, URLFilter])
+
+    return spell_checker
+
+
+def main():
+    args = parse_args()
+
+    # Set the amount of debugging messages to print.
+    output_lvl = 1
+    if args.brief:
+        output_lvl = 0
+    else:
+        if args.verbose:
+            output_lvl = 2
+    if args.miss:
+        output_lvl = -1
 
-    spell_checker = SpellChecker(sitk_dict, filters=[EmailFilter, URLFilter])
+    spell_checker = create_spell_checker(args, output_lvl)
 
     file_list = []
     if len(args.filenames):