diff --git a/Tools/demo/ss1.py b/Tools/demo/ss1.py
index 2d1e490..4cea667 100755
--- a/Tools/demo/ss1.py
+++ b/Tools/demo/ss1.py
@@ -586,7 +586,7 @@
         cell = Tk.Label(self.cellgrid, relief='raised')
         cell.grid_configure(column=0, row=0, sticky='NSWE')
         cell.bind("<ButtonPress-1>", self.selectall)
-        # Create the top row of labels, and confiure the grid columns
+        # Create the top row of labels, and configure the grid columns
         for x in range(1, columns+1):
             self.cellgrid.grid_columnconfigure(x, minsize=64)
             cell = Tk.Label(self.cellgrid, text=colnum2name(x), relief='raised')
diff --git a/Tools/msi/msi.py b/Tools/msi/msi.py
index 31c9b82..53e652d 100644
--- a/Tools/msi/msi.py
+++ b/Tools/msi/msi.py
@@ -178,7 +178,7 @@
 
 have_mingw = build_mingw_lib(lib_file, def_file, dll_file, mingw_lib)
 
-# Determine the target architechture
+# Determine the target architecture
 dll_path = os.path.join(srcdir, PCBUILD, dll_file)
 msilib.set_arch_from_file(dll_path)
 if msilib.pe_type(dll_path) != msilib.pe_type("msisupport.dll"):
diff --git a/Tools/pybench/pybench.py b/Tools/pybench/pybench.py
index 2999271..811ef96 100755
--- a/Tools/pybench/pybench.py
+++ b/Tools/pybench/pybench.py
@@ -682,7 +682,7 @@
                 other_total_avg_time = other_total_avg_time + other_avg_time
                 if (benchmarks_compatible and
                     test.compatible(other)):
-                    # Both benchmark and tests are comparible
+                    # Both benchmark and tests are comparable
                     min_diff = ((min_time * self.warp) /
                                 (other_min_time * other.warp) - 1.0)
                     avg_diff = ((avg_time * self.warp) /
@@ -696,7 +696,7 @@
                     else:
                         avg_diff = '%+5.1f%%' % (avg_diff * PERCENT)
                 else:
-                    # Benchmark or tests are not comparible
+                    # Benchmark or tests are not comparable
                     min_diff, avg_diff = 'n/a', 'n/a'
                     tests_compatible = 0
             print('%30s: %5.0fms %5.0fms %7s %5.0fms %5.0fms %7s' % \