Replace uses of 0 and 1 with False and True, where appropriate. (#993)

Note that in some cases there are more modern idioms that might be used,
but fixing those is for another PR.

kiva/basecore2d.py

@@ -692,14 +692,14 @@ def is_path_empty(self):
         """ Tests to see whether the current drawing path is empty
         """
         # If the first subpath is empty, then the path is empty
-        res = 0
+        res = False
         if not self.path[0]:
-            res = 1
+            res = True
         else:
-            res = 1
+            res = True
             for sub in self.path:
                 if not is_point(sub[-1]):
-                    res = 0
+                    res = False
                     break
         return res
 

kiva/line_state.py

@@ -25,9 +25,9 @@ def exactly_equal(arr1, arr2):
 
 def is_dashed(dash):
     # if all the values in the dash settings are 0, then it is a solid line.
-    result = 0
+    result = False
     if dash is not None and sometrue(asarray(dash[1]) != 0):
-        result = 1
+        result = True
     return result
 
 

kiva/ps.py

@@ -77,13 +77,13 @@ def default_filter(kw1):
     import reportlab.pdfbase.pdfmetrics as pdfmetrics
     import reportlab.pdfbase._fontdata as _fontdata
 
-    _reportlab_loaded = 1
+    _reportlab_loaded = True
 except ImportError:
     # we support the basic 14
     from . import _fontdata
     from . import pdfmetrics
 
-    _reportlab_loaded = 0
+    _reportlab_loaded = False
 
 font_face_map = {"Arial": "Helvetica", "": "Helvetica"}
 

kiva/svg.py

@@ -124,12 +124,12 @@ def default_filter(kw1):
     import reportlab.pdfbase.pdfmetrics as pdfmetrics
     import reportlab.pdfbase._fontdata as _fontdata
 
-    _reportlab_loaded = 1
+    _reportlab_loaded = True
 except ImportError:
     from . import pdfmetrics
     from . import _fontdata
 
-    _reportlab_loaded = 0
+    _reportlab_loaded = False
 
 
 # This backend has no compiled path object, yet.

kiva/tests/test_quartz.py

@@ -70,7 +70,7 @@ def OnPaint(self, evt):
         class MyApp(wx.App):
             def OnInit(self):
                 SimpleWindow()
-                return 1
+                return True
 
         app = MyApp(False)
         app.MainLoop()

kiva/trait_defs/ui/wx/kiva_font_editor.py

@@ -72,7 +72,7 @@ def to_wx_font(self, editor):
             family,
             style,
             weight,
-            (font.underline != 0),
+            font.underline,
             self.face_name(font),
         )