diff -r 13b8fd71db46 Include/datetime.h
--- a/Include/datetime.h	Mon Jul 15 21:13:08 2013 +1000
+++ b/Include/datetime.h	Mon Jul 15 19:25:12 2013 +0200
@@ -42,7 +42,7 @@
 
 typedef struct
 {
-    PyObject_HEAD               /* a pure abstract base clase */
+    PyObject_HEAD               /* a pure abstract base class */
 } PyDateTime_TZInfo;
 
 
diff -r 13b8fd71db46 Lib/collections/__init__.py
--- a/Lib/collections/__init__.py	Mon Jul 15 21:13:08 2013 +1000
+++ b/Lib/collections/__init__.py	Mon Jul 15 19:25:12 2013 +0200
@@ -372,7 +372,7 @@
         print(result._source)
 
     # For pickling to work, the __module__ variable needs to be set to the frame
-    # where the named tuple is created.  Bypass this step in enviroments where
+    # where the named tuple is created.  Bypass this step in environments where
     # sys._getframe is not defined (Jython for example) or sys._getframe is not
     # defined for arguments greater than 0 (IronPython).
     try:
diff -r 13b8fd71db46 Lib/enum.py
--- a/Lib/enum.py	Mon Jul 15 21:13:08 2013 +1000
+++ b/Lib/enum.py	Mon Jul 15 19:25:12 2013 +0200
@@ -92,9 +92,9 @@
         super().__setitem__(key, value)
 
 
-# Dummy value for Enum as EnumMeta explicity checks for it, but of course until
-# EnumMeta finishes running the first time the Enum class doesn't exist.  This
-# is also why there are checks in EnumMeta like `if Enum is not None`
+# Dummy value for Enum as EnumMeta explicitly checks for it, but of course
+# until EnumMeta finishes running the first time the Enum class doesn't exist.
+# This is also why there are checks in EnumMeta like `if Enum is not None`
 Enum = None
 
 
diff -r 13b8fd71db46 Lib/genericpath.py
--- a/Lib/genericpath.py	Mon Jul 15 21:13:08 2013 +1000
+++ b/Lib/genericpath.py	Mon Jul 15 19:25:12 2013 +0200
@@ -23,7 +23,7 @@
 
 
 # This follows symbolic links, so both islink() and isdir() can be true
-# for the same path ono systems that support symlinks
+# for the same path on systems that support symlinks
 def isfile(path):
     """Test whether a path is a regular file"""
     try:
diff -r 13b8fd71db46 Lib/inspect.py
--- a/Lib/inspect.py	Mon Jul 15 21:13:08 2013 +1000
+++ b/Lib/inspect.py	Mon Jul 15 19:25:12 2013 +0200
@@ -47,7 +47,7 @@
 
 # Create constants for the compiler flags in Include/code.h
 # We try to get them from dis to avoid duplication, but fall
-# back to hardcording so the dependency is optional
+# back to hardcoding so the dependency is optional
 try:
     from dis import COMPILER_FLAG_NAMES as _flag_names
 except ImportError:
diff -r 13b8fd71db46 Lib/test/datetimetester.py
--- a/Lib/test/datetimetester.py	Mon Jul 15 21:13:08 2013 +1000
+++ b/Lib/test/datetimetester.py	Mon Jul 15 19:25:12 2013 +0200
@@ -250,7 +250,7 @@
                              t.replace(tzinfo=tz).dst())
 
 #############################################################################
-# Base clase for testing a particular aspect of timedelta, time, date and
+# Base class for testing a particular aspect of timedelta, time, date and
 # datetime comparisons.
 
 class HarmlessMixedComparison:
diff -r 13b8fd71db46 Lib/test/test_ast.py
--- a/Lib/test/test_ast.py	Mon Jul 15 21:13:08 2013 +1000
+++ b/Lib/test/test_ast.py	Mon Jul 15 19:25:12 2013 +0200
@@ -22,7 +22,7 @@
 
 
 # These tests are compiled through "exec"
-# There should be atleast one test per statement
+# There should be at least one test per statement
 exec_tests = [
     # None
     "None",
diff -r 13b8fd71db46 Lib/test/test_normalization.py
--- a/Lib/test/test_normalization.py	Mon Jul 15 21:13:08 2013 +1000
+++ b/Lib/test/test_normalization.py	Mon Jul 15 19:25:12 2013 +0200
@@ -59,7 +59,7 @@
                 c1,c2,c3,c4,c5 = [unistr(x) for x in line.split(';')[:-1]]
             except RangeError:
                 # Skip unsupported characters;
-                # try atleast adding c1 if we are in part1
+                # try at least adding c1 if we are in part1
                 if part == "@Part1":
                     try:
                         c1 = unistr(line.split(';')[0])
diff -r 13b8fd71db46 Lib/test/test_urllib.py
--- a/Lib/test/test_urllib.py	Mon Jul 15 21:13:08 2013 +1000
+++ b/Lib/test/test_urllib.py	Mon Jul 15 19:25:12 2013 +0200
@@ -1294,7 +1294,7 @@
 # Everywhere else they work ok, but on those machines, sometimes
 # fail in one of the tests, sometimes in other. I have a linux, and
 # the tests go ok.
-# If anybody has one of the problematic enviroments, please help!
+# If anybody has one of the problematic environments, please help!
 # .   Facundo
 #
 # def server(evt):
diff -r 13b8fd71db46 Modules/unicodedata.c
--- a/Modules/unicodedata.c	Mon Jul 15 21:13:08 2013 +1000
+++ b/Modules/unicodedata.c	Mon Jul 15 19:25:12 2013 +0200
@@ -524,7 +524,7 @@
         while(stackptr) {
             Py_UCS4 code = stack[--stackptr];
             /* Hangul Decomposition adds three characters in
-               a single step, so we need atleast that much room. */
+               a single step, so we need at least that much room. */
             if (space < 3) {
                 Py_UCS4 *new_output;
                 osize += 10;
diff -r 13b8fd71db46 PCbuild/readme.txt
--- a/PCbuild/readme.txt	Mon Jul 15 21:13:08 2013 +1000
+++ b/PCbuild/readme.txt	Mon Jul 15 19:25:12 2013 +0200
@@ -265,7 +265,7 @@
 In addition, you need the Visual Studio plugin for external C compilers,
 from http://sf.net/projects/vsextcomp. The plugin will wrap cl.exe, to
 locate the proper target compiler, and convert compiler options
-accordingly. The project files require atleast version 0.9.
+accordingly. The project files require at least version 0.9.
 
 Building for AMD64
 ------------------