diff --git a/IPython/core/debugger.py b/IPython/core/debugger.py
index ebb8dca..0d0b71e 100644
--- a/IPython/core/debugger.py
+++ b/IPython/core/debugger.py
@@ -361,10 +361,8 @@ class Pdb(OldPdb):
                 print("Context must be a positive integer", file=self.stdout)
         except (TypeError, ValueError):
                 print("Context must be a positive integer", file=self.stdout)
-        try:
-            import reprlib  # Py 3
-        except ImportError:
-            import repr as reprlib  # Py 2
+
+        import reprlib
 
         ret = []
 
diff --git a/IPython/core/tests/test_debugger.py b/IPython/core/tests/test_debugger.py
index dcfd9a4..665d8f8 100644
--- a/IPython/core/tests/test_debugger.py
+++ b/IPython/core/tests/test_debugger.py
@@ -48,10 +48,7 @@ class PdbTestInput(object):
 #-----------------------------------------------------------------------------
 
 def test_longer_repr():
-    try:
-        from reprlib import repr as trepr  # Py 3
-    except ImportError:
-        from repr import repr as trepr  # Py 2
+    from reprlib import repr as trepr
     
     a = '1234567890'* 7
     ar = "'1234567890123456789012345678901234567890123456789012345678901234567890'"
diff --git a/IPython/lib/display.py b/IPython/lib/display.py
index de31788..d24f455 100644
--- a/IPython/lib/display.py
+++ b/IPython/lib/display.py
@@ -266,10 +266,7 @@ class IFrame(object):
     def _repr_html_(self):
         """return the embed iframe"""
         if self.params:
-            try:
-                from urllib.parse import urlencode # Py 3
-            except ImportError:
-                from urllib import urlencode
+            from urllib.parse import urlencode
             params = "?" + urlencode(self.params)
         else:
             params = ""
diff --git a/IPython/lib/inputhook.py b/IPython/lib/inputhook.py
index e6e8f2d..62f840d 100644
--- a/IPython/lib/inputhook.py
+++ b/IPython/lib/inputhook.py
@@ -509,10 +509,7 @@ class TkInputHook(InputHookBase):
         warn("This function is deprecated since IPython 5.0 and will be removed in future versions.",
                 DeprecationWarning, stacklevel=2)
         if app is None:
-            try:
-                from tkinter import Tk  # Py 3
-            except ImportError:
-                from Tkinter import Tk  # Py 2
+            from tkinter import Tk
             app = Tk()
             app.withdraw()
             self.manager.apps[GUI_TK] = app