Changed == None to is None.

https://lgtm.com/projects/g/GNOME/gedit?mode=tree&severity=recommendation&ruleFocus=7900090

gedit/Gedit.py

@@ -66,7 +66,7 @@ def get_trace_info(num_back_frames=0):
     try:
         for i in range(num_back_frames):
             back_frame = frame.f_back
-            if back_frame == None:
+            if back_frame is None:
                 break
             frame = back_frame
 

plugins/externaltools/tools/manager.py

@@ -310,11 +310,11 @@ class Manager(GObject.Object):
         t1 = model.get_value(iter1, self.TOOL_COLUMN)
         t2 = model.get_value(iter2, self.TOOL_COLUMN)
 
-        if model.iter_parent(iter1) == None:
-            if t1 == None:
+        if model.iter_parent(iter1) is None:
+            if t1 is None:
                 return -1
 
-            if t2 == None:
+            if t2 is None:
                 return 1
 
             def lang_name(lang):
@@ -769,8 +769,8 @@ class Manager(GObject.Object):
     def get_cell_data_cb(self, column, cell, model, piter, user_data=None):
         tool = model.get_value(piter, self.TOOL_COLUMN)
 
-        if tool == None or not isinstance(tool, Tool):
-            if tool == None:
+        if tool is None or not isinstance(tool, Tool):
+            if tool is None:
                 label = _('All Languages')
             elif not isinstance(tool, GtkSource.Language):
                 label = _('Plain Text')

plugins/pythonconsole/pythonconsole/console.py

@@ -127,7 +127,7 @@ class PythonConsole(Gtk.ScrolledWindow):
                     except:
                         pass
 
-                if font_desc == None:
+                if font_desc is None:
                     try:
                         font_desc = Pango.FontDescription(self.DEFAULT_FONT)
                     except:

plugins/snippets/snippets/document.py

@@ -116,7 +116,7 @@ class Document(GObject.Object, Gedit.ViewActivatable, Signals):
     def update_language(self):
         lang = self.view.get_buffer().get_language()
 
-        if lang == None and self.language_id == None:
+        if lang is None and self.language_id is None:
             return
         elif lang and lang.get_id() == self.language_id:
             return
@@ -232,7 +232,7 @@ class Document(GObject.Object, Gedit.ViewActivatable, Signals):
             # Find the current placeholder
             if piter.compare(begin) >= 0 and \
                     piter.compare(end) <= 0 and \
-                    current == None:
+                    current is None:
                 currentIndex = index
                 current = placeholder
 

plugins/snippets/snippets/library.py

@@ -68,7 +68,7 @@ class SnippetData:
         self.init_snippet_data(node)
 
     def init_snippet_data(self, node):
-        if node == None:
+        if node is None:
             return
 
         self.override = node.attrib.get('override')
@@ -551,7 +551,7 @@ class SnippetsUserFile(SnippetsSystemFile):
             return None
 
     def new_snippet(self, properties=None):
-        if (not self.ok) or self.root == None:
+        if (not self.ok) or self.root is None:
             return None
 
         element = et.SubElement(self.root, 'snippet')
@@ -609,7 +609,7 @@ class SnippetsUserFile(SnippetsSystemFile):
             Library().remove_library(self)
 
     def save(self):
-        if not self.ok or self.root == None or not self.tainted:
+        if not self.ok or self.root is None or not self.tainted:
             return
 
         path = os.path.dirname(self.path)

plugins/snippets/snippets/placeholder.py

@@ -380,7 +380,7 @@ class PlaceholderExpand(Placeholder):
                 if tabstop == 0:
                     continue
 
-                if self.mirror_text[tabstop] == None:
+                if self.mirror_text[tabstop] is None:
                     return False
 
         return self.run_update()
@@ -428,7 +428,7 @@ class PlaceholderShell(PlaceholderExpand):
 
         self.set_text(str.join('', self.shell_output).rstrip('\n'))
 
-        if self.default == None:
+        if self.default is None:
             self.default = self.get_text()
             self.leave()
 
@@ -615,7 +615,7 @@ class PlaceholderEval(PlaceholderExpand):
 
                 return False
 
-            if result == None:
+            if result is None:
                 # sys.stderr.write("%s:\n>> %s\n" % (_('The following python code, run in a snippet, does not return a value'), "\n>> ".join(self.command.split("\n"))))
                 result = ''
 

plugins/snippets/snippets/substitutionparser.py

@@ -178,17 +178,17 @@ class SubstitutionParser:
         tokens = self._remains(tokens, 2)
         condition, tokens = self._condition_value(tokens)
 
-        if condition == None or self._peek(tokens) != ',':
+        if condition is None or self._peek(tokens) != ',':
             raise ParseError
 
         truepart, tokens = self._parse(self._remains(tokens), ',')
 
-        if truepart == None:
+        if truepart is None:
             raise ParseError
 
         falsepart, tokens = self._parse(tokens, ')')
 
-        if falsepart == None:
+        if falsepart is None:
             raise ParseError
 
         if condition: