Lint found in ListPlot-point checking branch

mathics/eval/drawing/plot.py

@@ -201,19 +201,21 @@ def eval_ListPlot(
             [xx for xx, yy in plot_groups], [xx for xx, yy in plot_groups], x_range
         )
         plot_groups = [plot_groups]
-    elif all(isinstance(line, list) for line in plot_groups):
-        if not all(isinstance(line, list) for line in plot_groups):
+    elif all(isinstance(line, (list, tuple)) for line in plot_groups):
+        if not all(isinstance(line, (list, tuple)) for line in plot_groups):
             return
 
         # He have a list of plot groups
         if all(
-            isinstance(point, list) and len(point) == 2
-            for plot_group in plot_groups
+            isinstance(point, (list, tuple)) and len(point) == 2
+            for _ in plot_groups
             for point in plot_groups
         ):
             pass
         elif not is_discrete_plot and all(
-            not isinstance(point, list) for line in plot_groups for point in line
+            not isinstance(point, (list, tuple))
+            for line in plot_groups
+            for point in line
         ):
             # FIXME: is this right?
             y_min = min(plot_groups)[0]
@@ -229,7 +231,7 @@ def eval_ListPlot(
     # Split into plot segments
     plot_groups = [[plot_group] for plot_group in plot_groups]
     if isinstance(x_range, (list, tuple)):
-        x_min, m_max = x_range
+        x_min, x_max = x_range
         y_min, y_max = y_range
 
     for lidx, plot_group in enumerate(plot_groups):

test/helper.py

@@ -38,7 +38,7 @@ def evaluate(str_expr: str):
 def check_evaluation(
     str_expr: Optional[str],
     str_expected: Optional[str] = None,
-    failure_message: str = "",
+    failure_message: Optional[str] = "",
     hold_expected: bool = False,
     to_string_expr: Optional[bool] = True,
     to_string_expected: bool = True,