checkers: merge table cells if mypy & mypy --strict give same result

1 files changed, 23 insertions, 8 deletions

diff --git a/check_checkers.py b/check_checkers.py
index e8b1b2f..aee3f49 100755
--- a/check_checkers.py
+++ b/check_checkers.py
@@ -192,7 +192,11 @@ def run(
         out.write('</a>')
         if checker.extra_flags:
             out.write(' with ')
-            out.write(', '.join(f'<code>{html.escape(flag)}</code>' for flag in checker.extra_flags))
+            out.write(
+                ', '.join(
+                    f'<code>{html.escape(flag)}</code>' for flag in checker.extra_flags
+                )
+            )
         out.write('<br>({})'.format(html.escape(checker.version())))
     out.write('</tr>')
 
@@ -216,10 +220,23 @@ def run(
         error_ok = '# error' in code or '# maybe error' in code
         no_error_ok = '# error' not in code
 
-        for checker in checkers:
-            errors = checker_results[checker.__class__.__name__]
+        results = [
+            (checker.__class__.__name__, checker_results[checker.__class__.__name__])
+            for checker in checkers
+        ]
+
+        while results:
+            class_name, errors = results.pop(0)
             expected = (errors and error_ok) or (not errors and no_error_ok)
-            out.write('<td class="{}">'.format('ok' if expected else 'unexpected'))
+            colspan = 1
+            if errors and results and results[0][1] == errors:
+                results.pop(0)
+                colspan = 2
+            out.write(
+                '<td class="{}" colspan={}>'.format(
+                    'ok' if expected else 'unexpected', colspan
+                )
+            )
             if errors:
                 out.write('<ul>')
                 for filename, line, message in errors:
@@ -231,10 +248,8 @@ def run(
                 out.write('<center>no errors found')
             if not expected:
                 checker_issues = issues.get(
-                    checker.__class__.__name__.lower(),
-                    issues.get(
-                        checker.__class__.__name__.lower().replace('strict', ''), {}
-                    ),
+                    class_name.lower(),
+                    issues.get(class_name.lower().replace('strict', ''), {}),
                 )
                 issue = checker_issues.get(
                     os.path.splitext(os.path.basename(puzzle))[0].split(