diff --git a/pylib/gyp/generator/make.py b/pylib/gyp/generator/make.py
index 32a2122..634da89 100644
--- a/pylib/gyp/generator/make.py
+++ b/pylib/gyp/generator/make.py
@@ -788,7 +788,7 @@ def __init__(self, generator_flags, flavor):
         self.suffix_rules_objdir2 = {}
 
         # Generate suffix rules for all compilable extensions.
-        for ext in COMPILABLE_EXTENSIONS:
+        for ext, value in COMPILABLE_EXTENSIONS.items():
             # Suffix rules for source folder.
             self.suffix_rules_srcdir.update(
                 {
@@ -797,7 +797,7 @@ def __init__(self, generator_flags, flavor):
 $(obj).$(TOOLSET)/$(TARGET)/%%.o: $(srcdir)/%%%s FORCE_DO_CMD
 \t@$(call do_cmd,%s,1)
 """
-                        % (ext, COMPILABLE_EXTENSIONS[ext])
+                        % (ext, value)
                     )
                 }
             )
@@ -810,7 +810,7 @@ def __init__(self, generator_flags, flavor):
 $(obj).$(TOOLSET)/$(TARGET)/%%.o: $(obj).$(TOOLSET)/%%%s FORCE_DO_CMD
 \t@$(call do_cmd,%s,1)
 """
-                        % (ext, COMPILABLE_EXTENSIONS[ext])
+                        % (ext, value)
                     )
                 }
             )
@@ -821,7 +821,7 @@ def __init__(self, generator_flags, flavor):
 $(obj).$(TOOLSET)/$(TARGET)/%%.o: $(obj)/%%%s FORCE_DO_CMD
 \t@$(call do_cmd,%s,1)
 """
-                        % (ext, COMPILABLE_EXTENSIONS[ext])
+                        % (ext, value)
                     )
                 }
             )
@@ -1779,13 +1779,13 @@ def WriteTarget(
             # using ":=".
             self.WriteSortedXcodeEnv(self.output, self.GetSortedXcodePostbuildEnv())
 
-            for configname in target_postbuilds:
+            for configname, value in target_postbuilds.items():
                 self.WriteLn(
                     "%s: TARGET_POSTBUILDS_%s := %s"
                     % (
                         QuoteSpaces(self.output),
                         configname,
-                        gyp.common.EncodePOSIXShellList(target_postbuilds[configname]),
+                        gyp.common.EncodePOSIXShellList(value),
                     )
                 )
 
diff --git a/pylib/gyp/input.py b/pylib/gyp/input.py
index 0881cbb..5e71fda 100644
--- a/pylib/gyp/input.py
+++ b/pylib/gyp/input.py
@@ -2469,11 +2469,8 @@ def SetUpConfigurations(target, target_dict):
         merged_configurations[configuration] = new_configuration_dict
 
     # Put the new configurations back into the target dict as a configuration.
-    for configuration in merged_configurations:
-        target_dict["configurations"][configuration] = merged_configurations[
-            configuration
-        ]
-
+    for configuration, value in merged_configurations.items():
+        target_dict["configurations"][configuration] = value
     # Now drop all the abstract ones.
     configs = target_dict["configurations"]
     target_dict["configurations"] = {
@@ -3020,8 +3017,8 @@ def Load(
                     del target_dict[key]
         ProcessListFiltersInDict(target_name, tmp_dict)
         # Write the results back to |target_dict|.
-        for key in tmp_dict:
-            target_dict[key] = tmp_dict[key]
+        for key, value in tmp_dict.items():
+            target_dict[key] = value
 
     # Make sure every dependency appears at most once.
     RemoveDuplicateDependencies(targets)
diff --git a/tools/pretty_sln.py b/tools/pretty_sln.py
index cf0638a..8026699 100755
--- a/tools/pretty_sln.py
+++ b/tools/pretty_sln.py
@@ -93,10 +93,10 @@ def ParseSolution(solution_file):
             continue
 
     # Change all dependencies clsid to name instead.
-    for project in dependencies:
+    for project, deps in dependencies.items():
         # For each dependencies in this project
         new_dep_array = []
-        for dep in dependencies[project]:
+        for dep in deps:
             # Look for the project name matching this cldis
             for project_info in projects:
                 if projects[project_info][1] == dep:
diff --git a/tools/pretty_vcproj.py b/tools/pretty_vcproj.py
index d4b58fd..8624003 100755
--- a/tools/pretty_vcproj.py
+++ b/tools/pretty_vcproj.py
@@ -118,8 +118,8 @@ def FixFilenames(filenames, current_directory):
     new_list = []
     for filename in filenames:
         if filename:
-            for key in REPLACEMENTS:
-                filename = filename.replace(key, REPLACEMENTS[key])
+            for key, value in REPLACEMENTS.items():
+                filename = filename.replace(key, value)
             os.chdir(current_directory)
             filename = filename.strip("\"' ")
             if filename.startswith("$"):