bin/ui-rules-enforcer.py                     |   64 +++++++++++++--------------
 librelogo/source/LibreLogo/LibreLogo.py      |    6 +-
 scripting/source/pyprov/mailmerge.py         |    8 +--
 sd/qa/uitest/impress_tests2/tdf133713.py     |    2 
 solenv/bin/native-code.py                    |    2 
 solenv/gdb/boost/lib/unordered.py            |    4 -
 solenv/gdb/boost/optional.py                 |    2 
 solenv/gdb/boost/ptr_container.py            |    4 -
 solenv/gdb/boost/smart_ptr.py                |    2 
 solenv/gdb/boost/unordered.py                |    2 
 solenv/gdb/libreoffice/sw.py                 |    2 
 sw/qa/uitest/writer_tests4/spellDialog.py    |    4 -
 sw/qa/uitest/writer_tests8/tdf106733.py      |    4 -
 sw/qa/uitest/writer_tests8/tdf159102.py      |    4 -
 sw/qa/uitest/writer_tests8/tdf160170.py      |    4 -
 uitest/ui_logger_dsl/dsl_core.py             |    2 
 uitest/uitest/uihelper/testDialog.py         |    4 -
 wizards/com/sun/star/wizards/ui/UnoDialog.py |    2 
 wizards/source/access2base/access2base.py    |   16 +++---
 19 files changed, 69 insertions(+), 69 deletions(-)

New commits:
commit 1f8a9bfcdb83446b49e74dba241f9924d3b74748
Author:     Julien Nabet <serval2...@yahoo.fr>
AuthorDate: Fri Jul 12 15:58:23 2024 +0200
Commit:     Julien Nabet <serval2...@yahoo.fr>
CommitDate: Sat Jul 13 09:13:54 2024 +0200

    Python: use is None/is not None instead of == None/!= None
    
    Change-Id: I1c34181897506ad29a063865d752cb85ab76dbc3
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/170408
    Reviewed-by: Julien Nabet <serval2...@yahoo.fr>
    Tested-by: Jenkins

diff --git a/bin/ui-rules-enforcer.py b/bin/ui-rules-enforcer.py
index f3514d212276..c363439d25bd 100755
--- a/bin/ui-rules-enforcer.py
+++ b/bin/ui-rules-enforcer.py
@@ -99,7 +99,7 @@ def replace_button_use_stock(current):
       if attributes.get("name") == "label":
         label = child
 
-  if isbutton and use_stock != None:
+  if isbutton and use_stock is not None:
     do_replace_button_use_stock(current, use_stock, use_underline, label, 
insertpos)
 
 def do_replace_image_stock(current, stock):
@@ -166,7 +166,7 @@ def replace_image_stock(current):
       if attributes.get("name") == "stock":
         stock = child
 
-  if isimage and stock != None:
+  if isimage and stock is not None:
     do_replace_image_stock(current, stock)
 
 def remove_check_button_align(current):
@@ -185,11 +185,11 @@ def remove_check_button_align(current):
         yalign = child
 
   if ischeckorradiobutton:
-    if xalign != None:
+    if xalign is not None:
       if xalign.text != "0":
         raise Exception(sys.argv[1] + ': non-default xalign', xalign.text)
       current.remove(xalign)
-    if yalign != None:
+    if yalign is not None:
       if yalign.text != "0.5":
         raise Exception(sys.argv[1] + ': non-default yalign', yalign.text)
       current.remove(yalign)
@@ -207,7 +207,7 @@ def remove_check_button_relief(current):
         relief = child
 
   if ischeckorradiobutton:
-    if relief != None:
+    if relief is not None:
       current.remove(relief)
 
 def remove_check_button_image_position(current):
@@ -223,7 +223,7 @@ def remove_check_button_image_position(current):
         image_position = child
 
   if ischeckorradiobutton:
-    if image_position != None:
+    if image_position is not None:
       current.remove(image_position)
 
 def remove_spin_button_input_purpose(current):
@@ -239,7 +239,7 @@ def remove_spin_button_input_purpose(current):
         input_purpose = child
 
   if isspinbutton:
-    if input_purpose != None:
+    if input_purpose is not None:
       current.remove(input_purpose)
 
 def remove_caps_lock_warning(current):
@@ -255,7 +255,7 @@ def remove_caps_lock_warning(current):
         caps_lock_warning = child
 
   if iscandidate:
-    if caps_lock_warning != None:
+    if caps_lock_warning is not None:
       current.remove(caps_lock_warning)
 
 def remove_spin_button_max_length(current):
@@ -271,7 +271,7 @@ def remove_spin_button_max_length(current):
         max_length = child
 
   if isspinbutton:
-    if max_length != None:
+    if max_length is not None:
       current.remove(max_length)
 
 def remove_entry_shadow_type(current):
@@ -287,7 +287,7 @@ def remove_entry_shadow_type(current):
         shadow_type = child
 
   if isentry:
-    if shadow_type!= None:
+    if shadow_typeis not None:
       current.remove(shadow_type)
 
 def remove_label_pad(current):
@@ -305,9 +305,9 @@ def remove_label_pad(current):
       elif attributes.get("name") == "ypad":
         ypad = child
 
-  if xpad != None:
+  if xpad is not None:
     current.remove(xpad)
-  if ypad != None:
+  if ypad is not None:
     current.remove(ypad)
 
 def remove_label_angle(current):
@@ -322,7 +322,7 @@ def remove_label_angle(current):
       if attributes.get("name") == "angle":
         angle = child
 
-  if angle != None:
+  if angle is not None:
     current.remove(angle)
 
 def remove_track_visited_links(current):
@@ -337,7 +337,7 @@ def remove_track_visited_links(current):
       if attributes.get("name") == "track_visited_links" or 
attributes.get("name") == "track-visited-links":
         track_visited_links = child
 
-  if track_visited_links != None:
+  if track_visited_links is not None:
     current.remove(track_visited_links)
 
 def remove_toolbutton_focus(current):
@@ -353,7 +353,7 @@ def remove_toolbutton_focus(current):
       if attributes.get("name") == "can_focus" or attributes.get("name") == 
"can-focus":
         can_focus = child
 
-  if can_focus != None:
+  if can_focus is not None:
     current.remove(can_focus)
 
 def remove_double_buffered(current):
@@ -365,7 +365,7 @@ def remove_double_buffered(current):
       if attributes.get("name") == "double_buffered" or attributes.get("name") 
== "double-buffered":
         double_buffered = child
 
-  if double_buffered != None:
+  if double_buffered is not None:
     current.remove(double_buffered)
 
 def remove_label_yalign(current):
@@ -377,7 +377,7 @@ def remove_label_yalign(current):
       if attributes.get("name") == "label_yalign" or attributes.get("name") == 
"label-yalign":
         label_yalign = child
 
-  if label_yalign != None:
+  if label_yalign is not None:
     current.remove(label_yalign)
 
 def remove_skip_pager_hint(current):
@@ -389,7 +389,7 @@ def remove_skip_pager_hint(current):
       if attributes.get("name") == "skip_pager_hint" or attributes.get("name") 
== "skip-pager-hint":
         skip_pager_hint = child
 
-  if skip_pager_hint != None:
+  if skip_pager_hint is not None:
     current.remove(skip_pager_hint)
 
 def remove_gravity(current):
@@ -401,7 +401,7 @@ def remove_gravity(current):
       if attributes.get("name") == "gravity":
         gravity = child
 
-  if gravity != None:
+  if gravity is not None:
     current.remove(gravity)
 
 def remove_expander_label_fill(current):
@@ -416,7 +416,7 @@ def remove_expander_label_fill(current):
       if attributes.get("name") == "label_fill" or attributes.get("name") == 
"label-fill":
         label_fill = child
 
-  if label_fill != None:
+  if label_fill is not None:
     current.remove(label_fill)
 
 def remove_expander_spacing(current):
@@ -431,7 +431,7 @@ def remove_expander_spacing(current):
       if attributes.get("name") == "spacing":
         spacing = child
 
-  if spacing != None:
+  if spacing is not None:
     current.remove(spacing)
 
 def enforce_menubutton_indicator_consistency(current):
@@ -452,8 +452,8 @@ def enforce_menubutton_indicator_consistency(current):
         image = child
 
   if ismenubutton:
-    if draw_indicator == None:
-      if image == None:
+    if draw_indicator is None:
+      if image is None:
         # if there is no draw indicator and no image there should be a draw 
indicator
         draw_indicator = etree.Element("property")
         attributes = draw_indicator.attrib
@@ -484,12 +484,12 @@ def enforce_active_in_group_consistency(current):
         active = child
 
   if isradiobutton:
-    if active != None and active.text != "True":
+    if active is not None and active.text != "True":
       raise Exception(sys.argv[1] + ': non-standard active value', active.text)
-    if group != None and active != None:
+    if group is not None and active is not None:
       # if there is a group then we are not the leader and should not be active
       current.remove(active)
-    elif group == None and active == None:
+    elif group is None and active is None:
       # if there is no group then we are the leader and should be active
       active = etree.Element("property")
       attributes = active.attrib
@@ -512,7 +512,7 @@ def enforce_toolbar_can_focus(current):
         can_focus = child
 
   if istoolbar:
-    if can_focus == None:
+    if can_focus is None:
       can_focus = etree.Element("property")
       attributes = can_focus.attrib
       attributes["name"] = "can-focus"
@@ -539,11 +539,11 @@ def 
enforce_entry_text_column_id_column_for_gtkcombobox(current):
         idcolumn = child
 
   if isgtkcombobox:
-    if entrytextcolumn != None and entrytextcolumn.text != "0":
+    if entrytextcolumn is not None and entrytextcolumn.text != "0":
       raise Exception(sys.argv[1] + ': non-standard entry_text_column value', 
entrytextcolumn.text)
-    if idcolumn != None and idcolumn.text != "1":
+    if idcolumn is not None and idcolumn.text != "1":
       raise Exception(sys.argv[1] + ': non-standard id_column value', 
idcolumn.text)
-    if entrytextcolumn == None:
+    if entrytextcolumn is None:
       # if there is no entry_text_column, create one
       entrytextcolumn = etree.Element("property")
       attributes = entrytextcolumn.attrib
@@ -551,7 +551,7 @@ def 
enforce_entry_text_column_id_column_for_gtkcombobox(current):
       entrytextcolumn.text = "0"
       current.insert(insertpos, entrytextcolumn)
       insertpos = insertpos + 1
-    if idcolumn == None:
+    if idcolumn is None:
       # if there is no id_column, create one
       idcolumn = etree.Element("property")
       attributes = idcolumn.attrib
@@ -577,7 +577,7 @@ def enforce_button_always_show_image(current):
         image = child
 
   if isbutton and image is not None:
-    if always_show_image == None:
+    if always_show_image is None:
       always_show_image = etree.Element("property")
       attributes = always_show_image.attrib
       attributes["name"] = "always-show-image"
diff --git a/librelogo/source/LibreLogo/LibreLogo.py 
b/librelogo/source/LibreLogo/LibreLogo.py
index 2f29e15732d2..44daaeb00767 100644
--- a/librelogo/source/LibreLogo/LibreLogo.py
+++ b/librelogo/source/LibreLogo/LibreLogo.py
@@ -610,7 +610,7 @@ class LogoProgram(threading.Thread):
 
 # to check LibreLogo program termination (in that case, return value is False)
 def __is_alive__():
-    return __thread__ != None
+    return __thread__ is not None
 
 def __encodestring__(m):
     __strings__.append(re.sub("(\[^\]|\\(?=[‘’“”»」』]))", "", m.group(2)))
@@ -1453,7 +1453,7 @@ def text(shape, orig_st):
         c.CharFontName = _.fontfamily
 
         # has HTML-like formatting
-        if formatting != None:
+        if formatting is not None:
             _.fixSVG = True
             prev_format = 0
             prev_extra_data = extra_data[0]
@@ -1603,7 +1603,7 @@ def fillstyle(s):
 
 def __splitcolor__(c, shape = None, angle = None):
     if shape and (type(c) == tuple or type(_.t10y) == list):
-        angle = heading() if angle == None else -angle / 100 + 360
+        angle = heading() if angle is None else -angle / 100 + 360
         if type(c) == tuple:
             shape.FillStyle = __FillStyle_GRADIENT__
             # gradient color: [color1, color2, style, angle(must be positive 
for I/O), border, x_percent, y_percent, color1_intensity_percent, 
color2_intensity_percent]
diff --git a/scripting/source/pyprov/mailmerge.py 
b/scripting/source/pyprov/mailmerge.py
index 46d1c887263c..37421585f3b4 100644
--- a/scripting/source/pyprov/mailmerge.py
+++ b/scripting/source/pyprov/mailmerge.py
@@ -159,7 +159,7 @@ class PyMailSMTPService(unohelper.Base, XSmtpService):
     def isConnected(self):
         if dbg:
             print("PyMailSMTPService isConnected", file=sys.stderr)
-        return self.server != None
+        return self.server is not None
     def getCurrentConnectionContext(self):
         if dbg:
             print("PyMailSMTPService getCurrentConnectionContext", 
file=sys.stderr)
@@ -353,7 +353,7 @@ class PyMailIMAPService(unohelper.Base, XMailService):
     def isConnected(self):
         if dbg:
             print("PyMailIMAPService isConnected", file=sys.stderr)
-        return self.server != None
+        return self.server is not None
     def getCurrentConnectionContext(self):
         if dbg:
             print("PyMailIMAPService getCurrentConnectionContext", 
file=sys.stderr)
@@ -430,7 +430,7 @@ class PyMailPOP3Service(unohelper.Base, XMailService):
     def isConnected(self):
         if dbg:
             print("PyMailPOP3Service isConnected", file=sys.stderr)
-        return self.server != None
+        return self.server is not None
     def getCurrentConnectionContext(self):
         if dbg:
             print("PyMailPOP3Service getCurrentConnectionContext", 
file=sys.stderr)
@@ -472,7 +472,7 @@ class PyMailMessage(unohelper.Base, XMailMessage):
         self.ccrecipients = []
         self.bccrecipients = []
         self.aMailAttachments = []
-        if aMailAttachment != None:
+        if aMailAttachment is not None:
             self.aMailAttachments.append(aMailAttachment)
 
         self.SenderName, self.SenderAddress = parseaddr(sFrom)
diff --git a/sd/qa/uitest/impress_tests2/tdf133713.py 
b/sd/qa/uitest/impress_tests2/tdf133713.py
index da84ae94fbeb..09a174358147 100644
--- a/sd/qa/uitest/impress_tests2/tdf133713.py
+++ b/sd/qa/uitest/impress_tests2/tdf133713.py
@@ -51,7 +51,7 @@ class Tdf133713(UITestCase):
             xEnumeration = shape.Text.createEnumeration()
 
             # Without the fix in place, this test would have failed with
-            # AssertionError: 0 != None
+            # AssertionError: 0 is not None
             for i in range(3):
                 self.assertEqual(0, xEnumeration.nextElement().NumberingLevel)
 
diff --git a/solenv/bin/native-code.py b/solenv/bin/native-code.py
index 26de5c199ec1..743d8bfb5a8e 100755
--- a/solenv/bin/native-code.py
+++ b/solenv/bin/native-code.py
@@ -782,7 +782,7 @@ def limit_rdb(services_rdb, full_factory_map, 
full_constructor_map):
         # direct
         uri = component.get('uri')
         component_name = None
-        if uri != None:
+        if uri is not None:
             component_name = 
re.sub(r'^vnd.sun.star.expand:\$LO_LIB_DIR/([^.]*).so$', r'.a', uri)
         if component_name in full_factory_map:
             continue
diff --git a/solenv/gdb/boost/lib/unordered.py 
b/solenv/gdb/boost/lib/unordered.py
index ee58d0481158..0182a1603265 100644
--- a/solenv/gdb/boost/lib/unordered.py
+++ b/solenv/gdb/boost/lib/unordered.py
@@ -55,7 +55,7 @@ class Unordered(object):
         hash_buckets = hash_table.type.fields()[0]
         assert hash_buckets.is_base_class
         node_type = gdb.lookup_type("%s::node" % hash_buckets.type)
-        assert node_type != None
+        assert node_type is not None
         return node_type
 
     class _iterator(six.Iterator):
@@ -91,7 +91,7 @@ class Unordered(object):
 
         def _value(self):
             assert self.node != self.bucket # bucket node has no value
-            assert self.node != None
+            assert self.node is not None
             node = self.node.dereference().cast(self.node_type)
             return node['data_'].cast(self.value_type)
 
diff --git a/solenv/gdb/boost/optional.py b/solenv/gdb/boost/optional.py
index 08297254efc0..d32c272a70a2 100644
--- a/solenv/gdb/boost/optional.py
+++ b/solenv/gdb/boost/optional.py
@@ -41,7 +41,7 @@ printer = None
 def build_pretty_printers():
     global printer
 
-    if printer != None:
+    if printer is not None:
         return
 
     printer = printing.Printer("boost.optional")
diff --git a/solenv/gdb/boost/ptr_container.py 
b/solenv/gdb/boost/ptr_container.py
index 425d812f54b5..9b61268302cf 100644
--- a/solenv/gdb/boost/ptr_container.py
+++ b/solenv/gdb/boost/ptr_container.py
@@ -48,7 +48,7 @@ class PtrStdPrinterBase(object):
             self.sequence = None
 
     def to_string(self):
-        if self.sequence != None:
+        if self.sequence is not None:
             length = len(self.sequence)
             if length:
                 return "%s %s" % (self.typename, self.print_size(length))
@@ -223,7 +223,7 @@ printer = None
 def build_pretty_printers():
     global printer
 
-    if printer != None:
+    if printer is not None:
         return
 
     printer = printing.Printer("boost.ptr_container")
diff --git a/solenv/gdb/boost/smart_ptr.py b/solenv/gdb/boost/smart_ptr.py
index 60d88278a5ac..3e97c57d4fef 100644
--- a/solenv/gdb/boost/smart_ptr.py
+++ b/solenv/gdb/boost/smart_ptr.py
@@ -57,7 +57,7 @@ printer = None
 def build_pretty_printers():
     global printer
 
-    if printer != None:
+    if printer is not None:
         return
 
     printer = printing.Printer("boost.smart_ptr")
diff --git a/solenv/gdb/boost/unordered.py b/solenv/gdb/boost/unordered.py
index 2c56721857b8..1348ce9bbec7 100644
--- a/solenv/gdb/boost/unordered.py
+++ b/solenv/gdb/boost/unordered.py
@@ -94,7 +94,7 @@ printer = None
 def build_pretty_printers():
     global printer
 
-    if printer != None:
+    if printer is not None:
         return
 
     printer = printing.Printer("boost.unordered")
diff --git a/solenv/gdb/libreoffice/sw.py b/solenv/gdb/libreoffice/sw.py
index 50d0f2221f2e..89ac80e5eb2a 100644
--- a/solenv/gdb/libreoffice/sw.py
+++ b/solenv/gdb/libreoffice/sw.py
@@ -284,7 +284,7 @@ class BigPtrArrayPrinter(object):
             assert self.pos <= self.count
             assert self.block_pos <= self.block_count
             if self.pos == 0 and self.pos < self.count:
-                assert self.block != None
+                assert self.block is not None
 
 printer = None
 
diff --git a/sw/qa/uitest/writer_tests4/spellDialog.py 
b/sw/qa/uitest/writer_tests4/spellDialog.py
index 91be3cc3a948..17898c4dc5b7 100644
--- a/sw/qa/uitest/writer_tests4/spellDialog.py
+++ b/sw/qa/uitest/writer_tests4/spellDialog.py
@@ -22,11 +22,11 @@ class SpellingAndGrammarDialog(UITestCase):
         xSpellChecker = get_spellchecker(self.ui_test._xContext)
         locales = xSpellChecker.getLocales()
         for locale in locales:
-            if language != None:
+            if language is not None:
                 if locale.Language != language:
                     continue
 
-            if country != None:
+            if country is not None:
                 if locale.Country != country:
                     continue
 
diff --git a/sw/qa/uitest/writer_tests8/tdf106733.py 
b/sw/qa/uitest/writer_tests8/tdf106733.py
index 697a1b6dcda1..9e3b298d2739 100644
--- a/sw/qa/uitest/writer_tests8/tdf106733.py
+++ b/sw/qa/uitest/writer_tests8/tdf106733.py
@@ -20,11 +20,11 @@ class tdf106733(UITestCase):
         xHyphenator = xLinguServiceManager.getHyphenator()
         locales = xHyphenator.getLocales()
         for locale in locales:
-            if language != None:
+            if language is not None:
                 if locale.Language != language:
                     continue
 
-            if country != None:
+            if country is not None:
                 if locale.Country != country:
                     continue
 
diff --git a/sw/qa/uitest/writer_tests8/tdf159102.py 
b/sw/qa/uitest/writer_tests8/tdf159102.py
index e5e50dd6f698..c4ece7f725fe 100644
--- a/sw/qa/uitest/writer_tests8/tdf159102.py
+++ b/sw/qa/uitest/writer_tests8/tdf159102.py
@@ -19,11 +19,11 @@ class tdf159102(UITestCase):
         xHyphenator = xLinguServiceManager.getHyphenator()
         locales = xHyphenator.getLocales()
         for locale in locales:
-            if language != None:
+            if language is not None:
                 if locale.Language != language:
                     continue
 
-            if country != None:
+            if country is not None:
                 if locale.Country != country:
                     continue
 
diff --git a/sw/qa/uitest/writer_tests8/tdf160170.py 
b/sw/qa/uitest/writer_tests8/tdf160170.py
index 69ead0d5b52e..e90a6660c738 100644
--- a/sw/qa/uitest/writer_tests8/tdf160170.py
+++ b/sw/qa/uitest/writer_tests8/tdf160170.py
@@ -19,11 +19,11 @@ class tdf160170(UITestCase):
         xHyphenator = xLinguServiceManager.getHyphenator()
         locales = xHyphenator.getLocales()
         for locale in locales:
-            if language != None:
+            if language is not None:
                 if locale.Language != language:
                     continue
 
-            if country != None:
+            if country is not None:
                 if locale.Country != country:
                     continue
 
diff --git a/uitest/ui_logger_dsl/dsl_core.py b/uitest/ui_logger_dsl/dsl_core.py
index 798dc43256e9..79bd748b54e2 100644
--- a/uitest/ui_logger_dsl/dsl_core.py
+++ b/uitest/ui_logger_dsl/dsl_core.py
@@ -254,7 +254,7 @@ class ul_Compiler:
         self.variables.append(line)
 
     def handle_uno(self, UNOCommand):
-        if UNOCommand.parameters == None:
+        if UNOCommand.parameters is None:
             line = (
                 tab * 3
                 + 'self.xUITest.executeCommand("'
diff --git a/uitest/uitest/uihelper/testDialog.py 
b/uitest/uitest/uihelper/testDialog.py
index d5691522f3c0..20d37205d5a2 100644
--- a/uitest/uitest/uihelper/testDialog.py
+++ b/uitest/uitest/uihelper/testDialog.py
@@ -26,7 +26,7 @@ def testAppDialog(UITestCase, app, dialog):
                 except:
                     xOKBtn = None
 
-        if (xOKBtn != None):
+        if (xOKBtn is not None):
             print("check also OK button")
             with 
UITestCase.ui_test.execute_dialog_through_command(dialog['command']):
                 pass
@@ -57,7 +57,7 @@ def testChartDialog(UITestCase, dialog):
                 except:
                     xOKBtn = None
 
-        if (xOKBtn != None):
+        if (xOKBtn is not None):
             print("check also OK button")
             with UITestCase.ui_test.execute_dialog_through_action(
                     xObj, "COMMAND",
diff --git a/wizards/com/sun/star/wizards/ui/UnoDialog.py 
b/wizards/com/sun/star/wizards/ui/UnoDialog.py
index 5def1b184c40..cb320693f74d 100644
--- a/wizards/com/sun/star/wizards/ui/UnoDialog.py
+++ b/wizards/com/sun/star/wizards/ui/UnoDialog.py
@@ -106,7 +106,7 @@ class UnoDialog(object):
 
     def setVisible(self, parent):
         self.calculateDialogPosition(parent.xUnoDialog.getPosSize())
-        if self.xWindowPeer == None:
+        if self.xWindowPeer is None:
             self.createWindowPeer()
 
         self.xUnoDialog.setVisible(True)
diff --git a/wizards/source/access2base/access2base.py 
b/wizards/source/access2base/access2base.py
index 2410e6d88dae..ee1e05f17324 100644
--- a/wizards/source/access2base/access2base.py
+++ b/wizards/source/access2base/access2base.py
@@ -574,12 +574,12 @@ class _A2B(object, metaclass = _Singleton):
             # Check the availability of the Access2Base library
             for lib in ('Access2BaseDev', 'Access2Base'):
                 try:
-                    if Script == None:
+                    if Script is None:
                         Script = SCRIPTPROVIDER.getScript(sScript(lib))
                         _LIBRARY = lib
                 except Exception:
                     pass
-            if Script == None:
+            if Script is None:
                 raise SystemExit('Access2Base basic library not found')
         else:
             Script = SCRIPTPROVIDER.getScript(sScript(_LIBRARY))
@@ -607,14 +607,14 @@ class _A2B(object, metaclass = _Singleton):
         :param args: list of arguments to be passed to the script
         :return: the value returned by the script execution
         """
-        if COMPONENTCONTEXT == None: A2BConnect()     #   Connection from 
inside LibreOffice is done at first API invocation
+        if COMPONENTCONTEXT is None: A2BConnect()     #   Connection from 
inside LibreOffice is done at first API invocation
         Script = cls.xScript(script, module)
         try:
             Returned = Script.invoke((args), (), ())[0]
         except Exception:
             raise TypeError("Access2Base error: method '" + script + "' in 
Basic module '" + module + "' call error. Check its arguments.")
         else:
-            if Returned == None:
+            if Returned is None:
                 if cls.VerifyNoError(): return None
             return Returned
 
@@ -632,7 +632,7 @@ class _A2B(object, metaclass = _Singleton):
         :param args: the arguments of the method, if any
         :return: the value returned by the execution of the Basic routine
         """
-        if COMPONENTCONTEXT == None: A2BConnect()     #   Connection from 
inside LibreOffice is done at first API invocation
+        if COMPONENTCONTEXT is None: A2BConnect()     #   Connection from 
inside LibreOffice is done at first API invocation
         # Intercept special call to Application.Events()
         if basic == Application.basicmodule and script == 'Events':
             Script = cls.xScript('PythonEventsWrapper', _WRAPPERMODULE)
@@ -666,7 +666,7 @@ class _A2B(object, metaclass = _Singleton):
                     return None
             else:                               # UNO object
                 return Returned[0]
-        elif Returned[0] == None:
+        elif Returned[0] is None:
             if cls.VerifyNoError(): return None
         else: # Should not happen
             return Returned[0]
@@ -756,8 +756,8 @@ class Application(object, metaclass = _Singleton):
     @classmethod
     def OpenConnection(cls, thisdatabasedocument = acConstants.Missing):
         global THISDATABASEDOCUMENT
-        if COMPONENTCONTEXT == None: A2BConnect()     #   Connection from 
inside LibreOffice is done at first API invocation
-        if DESKTOP != None:
+        if COMPONENTCONTEXT is None: A2BConnect()     #   Connection from 
inside LibreOffice is done at first API invocation
+        if DESKTOP is not None:
             THISDATABASEDOCUMENT = DESKTOP.getCurrentComponent()
             return _A2B.invokeMethod('OpenConnection', 'Application', 
THISDATABASEDOCUMENT)
     @classmethod

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