diff --git a/Lib/idlelib/FileList.py b/Lib/idlelib/FileList.py
index 37a337ed9a6..a9989a8624a 100644
--- a/Lib/idlelib/FileList.py
+++ b/Lib/idlelib/FileList.py
@@ -103,7 +103,7 @@ class FileList:
         if not os.path.isabs(filename):
             try:
                 pwd = os.getcwd()
-            except os.error:
+            except OSError:
                 pass
             else:
                 filename = os.path.join(pwd, filename)
diff --git a/Lib/idlelib/GrepDialog.py b/Lib/idlelib/GrepDialog.py
index 27fcc33c329..1450f7a24ed 100644
--- a/Lib/idlelib/GrepDialog.py
+++ b/Lib/idlelib/GrepDialog.py
@@ -110,7 +110,7 @@ class GrepDialog(SearchDialogBase):
     def findfiles(self, dir, base, rec):
         try:
             names = os.listdir(dir or os.curdir)
-        except os.error as msg:
+        except OSError as msg:
             print(msg)
             return []
         list = []
diff --git a/Lib/idlelib/IOBinding.py b/Lib/idlelib/IOBinding.py
index ec50eb2348f..62c62b0a1b9 100644
--- a/Lib/idlelib/IOBinding.py
+++ b/Lib/idlelib/IOBinding.py
@@ -503,7 +503,7 @@ class IOBinding:
         else:
             try:
                 pwd = os.getcwd()
-            except os.error:
+            except OSError:
                 pwd = ""
             return pwd, ""
 
diff --git a/Lib/idlelib/PathBrowser.py b/Lib/idlelib/PathBrowser.py
index 55bf1aa87cd..ab05c67d758 100644
--- a/Lib/idlelib/PathBrowser.py
+++ b/Lib/idlelib/PathBrowser.py
@@ -45,7 +45,7 @@ class DirBrowserTreeItem(TreeItem):
     def GetSubList(self):
         try:
             names = os.listdir(self.dir or os.curdir)
-        except os.error:
+        except OSError:
             return []
         packages = []
         for name in names:
diff --git a/Lib/idlelib/TreeWidget.py b/Lib/idlelib/TreeWidget.py
index d4e524bb65f..833896cd004 100644
--- a/Lib/idlelib/TreeWidget.py
+++ b/Lib/idlelib/TreeWidget.py
@@ -382,7 +382,7 @@ class FileTreeItem(TreeItem):
         try:
             os.rename(self.path, newpath)
             self.path = newpath
-        except os.error:
+        except OSError:
             pass
 
     def GetIconName(self):
@@ -395,7 +395,7 @@ class FileTreeItem(TreeItem):
     def GetSubList(self):
         try:
             names = os.listdir(self.path)
-        except os.error:
+        except OSError:
             return []
         names.sort(key = os.path.normcase)
         sublist = []
diff --git a/Lib/tkinter/filedialog.py b/Lib/tkinter/filedialog.py
index 3ffb2528f0d..a71afb25b9c 100644
--- a/Lib/tkinter/filedialog.py
+++ b/Lib/tkinter/filedialog.py
@@ -166,7 +166,7 @@ class FileDialog:
         dir, pat = self.get_filter()
         try:
             names = os.listdir(dir)
-        except os.error:
+        except OSError:
             self.master.bell()
             return
         self.directory = dir
@@ -209,7 +209,7 @@ class FileDialog:
         if not os.path.isabs(dir):
             try:
                 pwd = os.getcwd()
-            except os.error:
+            except OSError:
                 pwd = None
             if pwd:
                 dir = os.path.join(pwd, dir)