Remove redundant leading zeroes in PEP references.
diff --git a/Doc/reference/compound_stmts.rst b/Doc/reference/compound_stmts.rst
index 1251024..66ae530 100644
--- a/Doc/reference/compound_stmts.rst
+++ b/Doc/reference/compound_stmts.rst
@@ -418,7 +418,7 @@
 
 .. seealso::
 
-   :pep:`0343` - The "with" statement
+   :pep:`343` - The "with" statement
       The specification, background, and examples for the Python :keyword:`with`
       statement.
 
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index c61c55b..eca4484 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -2397,7 +2397,7 @@
 
 .. seealso::
 
-   :pep:`0343` - The "with" statement
+   :pep:`343` - The "with" statement
       The specification, background, and examples for the Python :keyword:`with`
       statement.
 
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
index 427a63a..1fd37f3 100644
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -508,7 +508,7 @@
 
 .. seealso::
 
-   :pep:`0342` - Coroutines via Enhanced Generators
+   :pep:`342` - Coroutines via Enhanced Generators
       The proposal to enhance the API and syntax of generators, making them usable as
       simple coroutines.
 
diff --git a/Doc/reference/simple_stmts.rst b/Doc/reference/simple_stmts.rst
index 0203e08..1aa1fc1 100644
--- a/Doc/reference/simple_stmts.rst
+++ b/Doc/reference/simple_stmts.rst
@@ -538,10 +538,10 @@
 
 .. seealso::
 
-   :pep:`0255` - Simple Generators
+   :pep:`255` - Simple Generators
       The proposal for adding generators and the :keyword:`yield` statement to Python.
 
-   :pep:`0342` - Coroutines via Enhanced Generators
+   :pep:`342` - Coroutines via Enhanced Generators
       The proposal that, among other generator enhancements, proposed allowing
       :keyword:`yield` to appear inside a :keyword:`try` ... :keyword:`finally` block.