diff --git a/infra/config/recipes.cfg b/infra/config/recipes.cfg
index e2fcdb1b18..e5be5899a3 100644
--- a/infra/config/recipes.cfg
+++ b/infra/config/recipes.cfg
@@ -16,7 +16,7 @@
   "deps": {
     "recipe_engine": {
       "branch": "refs/heads/main",
-      "revision": "a357987df4e8bee834c80cace3066518004e7e27",
+      "revision": "5a08ca64d8089f0668cbdb50de4cfe366b237982",
       "url": "https://chromium.googlesource.com/infra/luci/recipes-py.git"
     }
   },
diff --git a/recipes/README.recipes.md b/recipes/README.recipes.md
index f607be5da7..63d215e095 100644
--- a/recipes/README.recipes.md
+++ b/recipes/README.recipes.md
@@ -50,6 +50,8 @@
 
 [DEPS](/recipes/recipe_modules/bot_update/__init__.py#1): [depot\_tools](#recipe_modules-depot_tools), [gclient](#recipe_modules-gclient), [gerrit](#recipe_modules-gerrit), [gitiles](#recipe_modules-gitiles), [tryserver](#recipe_modules-tryserver), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/commit\_position][recipe_engine/recipe_modules/commit_position], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/cq][recipe_engine/recipe_modules/cq], [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/milo][recipe_engine/recipe_modules/milo], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/runtime][recipe_engine/recipe_modules/runtime], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 Recipe module to ensure a checkout is consistent on a bot.
 
 #### **class [BotUpdateApi](/recipes/recipe_modules/bot_update/api.py#12)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
@@ -119,6 +121,8 @@ properties.
 
 [DEPS](/recipes/recipe_modules/cipd/__init__.py#1): [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 API for interacting with CIPD.
 
 Depends on 'cipd' binary available in PATH:
@@ -236,6 +240,8 @@ parameters will be used.
 
 [DEPS](/recipes/recipe_modules/depot_tools/__init__.py#5): [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/runtime][recipe_engine/recipe_modules/runtime]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 The `depot_tools` module provides safe functions to access paths within
 the depot_tools repo.
 
@@ -275,6 +281,8 @@ Returns (Path): The "depot_tools" root directory.
 
 [DEPS](/recipes/recipe_modules/gclient/__init__.py#1): [git](#recipe_modules-git), [gitiles](#recipe_modules-gitiles), [tryserver](#recipe_modules-tryserver), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 #### **class [GclientApi](/recipes/recipe_modules/gclient/api.py#77)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
 
 &emsp; **@property**<br>&mdash; **def [DepsDiffException](/recipes/recipe_modules/gclient/api.py#440)(self):**
@@ -357,6 +365,8 @@ revision map. This doesn't overwrite the revision if it was already set.
 
 [DEPS](/recipes/recipe_modules/gerrit/__init__.py#1): [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/file][recipe_engine/recipe_modules/file], [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 #### **class [GerritApi](/recipes/recipe_modules/gerrit/api.py#7)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
 
 Module for interact with Gerrit endpoints
@@ -470,6 +480,8 @@ Returns:
 
 [DEPS](/recipes/recipe_modules/git/__init__.py#1): [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/runtime][recipe_engine/recipe_modules/runtime], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 #### **class [GitApi](/recipes/recipe_modules/git/api.py#18)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
 
 &mdash; **def [\_\_call\_\_](/recipes/recipe_modules/git/api.py#21)(self, \*args, \*\*kwargs):**
@@ -595,6 +607,8 @@ Args:
 
 [DEPS](/recipes/recipe_modules/git_cl/__init__.py#1): [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 #### **class [GitClApi](/recipes/recipe_modules/git_cl/api.py#9)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
 
 &mdash; **def [get\_description](/recipes/recipe_modules/git_cl/api.py#24)(self, patch_url=None, \*\*kwargs):**
@@ -610,6 +624,8 @@ DEPRECATED. Consider using gerrit.get_change_description instead.
 
 [DEPS](/recipes/recipe_modules/gitiles/__init__.py#5): [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/step][recipe_engine/recipe_modules/step], [recipe\_engine/url][recipe_engine/recipe_modules/url]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 #### **class [Gitiles](/recipes/recipe_modules/gitiles/api.py#17)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
 
 Module for polling a git repository using the Gitiles web interface.
@@ -699,6 +715,8 @@ Generates a Gitiles repo URL. See also parse_repo_url.
 
 [DEPS](/recipes/recipe_modules/gsutil/__init__.py#1): [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/python][recipe_engine/recipe_modules/python]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 #### **class [GSUtilApi](/recipes/recipe_modules/gsutil/api.py#9)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
 
 &mdash; **def [\_\_call\_\_](/recipes/recipe_modules/gsutil/api.py#14)(self, cmd, name=None, use_retry_wrapper=True, version=None, parallel_upload=False, multithreaded=False, infra_step=True, \*\*kwargs):**
@@ -742,6 +760,8 @@ Args:
 
 [DEPS](/recipes/recipe_modules/osx_sdk/__init__.py#5): [recipe\_engine/cipd][recipe_engine/recipe_modules/cipd], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/step][recipe_engine/recipe_modules/step], [recipe\_engine/version][recipe_engine/recipe_modules/version]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 The `osx_sdk` module provides safe functions to access a semi-hermetic
 XCode installation.
 
@@ -804,6 +824,8 @@ Raises:
 
 [DEPS](/recipes/recipe_modules/presubmit/__init__.py#11): [bot\_update](#recipe_modules-bot_update), [depot\_tools](#recipe_modules-depot_tools), [gclient](#recipe_modules-gclient), [git](#recipe_modules-git), [tryserver](#recipe_modules-tryserver), [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/cq][recipe_engine/recipe_modules/cq], [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/resultdb][recipe_engine/recipe_modules/resultdb], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 #### **class [PresubmitApi](/recipes/recipe_modules/presubmit/api.py#16)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
 
 &mdash; **def [\_\_call\_\_](/recipes/recipe_modules/presubmit/api.py#28)(self, \*args, \*\*kwargs):**
@@ -843,6 +865,8 @@ Returns:
 
 [DEPS](/recipes/recipe_modules/tryserver/__init__.py#5): [gerrit](#recipe_modules-gerrit), [git](#recipe_modules-git), [git\_cl](#recipe_modules-git_cl), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 #### **class [TryserverApi](/recipes/recipe_modules/tryserver/api.py#27)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
 
 &emsp; **@property**<br>&mdash; **def [constants](/recipes/recipe_modules/tryserver/api.py#51)(self):**
@@ -997,6 +1021,8 @@ timeout.
 
 [DEPS](/recipes/recipe_modules/windows_sdk/__init__.py#5): [recipe\_engine/cipd][recipe_engine/recipe_modules/cipd], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 The `windows_sdk` module provides safe functions to access a hermetic
 Microsoft Visual Studio installation.
 
@@ -1033,86 +1059,120 @@ Raises:
 
 [DEPS](/recipes/recipe_modules/bot_update/examples/full.py#5): [bot\_update](#recipe_modules-bot_update), [gclient](#recipe_modules-gclient), [gerrit](#recipe_modules-gerrit), [tryserver](#recipe_modules-tryserver), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/runtime][recipe_engine/recipe_modules/runtime]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/bot_update/examples/full.py#23)(api):**
 ### *recipes* / [bot\_update:tests/do\_not\_retry\_patch\_failures\_in\_cq](/recipes/recipe_modules/bot_update/tests/do_not_retry_patch_failures_in_cq.py)
 
 [DEPS](/recipes/recipe_modules/bot_update/tests/do_not_retry_patch_failures_in_cq.py#5): [bot\_update](#recipe_modules-bot_update), [gclient](#recipe_modules-gclient), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/cq][recipe_engine/recipe_modules/cq], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/bot_update/tests/do_not_retry_patch_failures_in_cq.py#17)(api):**
 ### *recipes* / [bot\_update:tests/ensure\_checkout](/recipes/recipe_modules/bot_update/tests/ensure_checkout.py)
 
 [DEPS](/recipes/recipe_modules/bot_update/tests/ensure_checkout.py#7): [bot\_update](#recipe_modules-bot_update), [gclient](#recipe_modules-gclient), [recipe\_engine/json][recipe_engine/recipe_modules/json]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/bot_update/tests/ensure_checkout.py#14)(api):**
 ### *recipes* / [cipd:examples/full](/recipes/recipe_modules/cipd/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/cipd/examples/full.py#8): [cipd](#recipe_modules-cipd), [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/cipd/examples/full.py#27)(api, use_pkg, pkg_files, pkg_dirs, ver_files, install_mode):**
 ### *recipes* / [cipd:examples/platform\_suffix](/recipes/recipe_modules/cipd/examples/platform_suffix.py)
 
 [DEPS](/recipes/recipe_modules/cipd/examples/platform_suffix.py#8): [cipd](#recipe_modules-cipd), [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/cipd/examples/platform_suffix.py#22)(api, arch_override, bits_override, expect_error):**
 ### *recipes* / [depot\_tools:examples/full](/recipes/recipe_modules/depot_tools/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/depot_tools/examples/full.py#5): [depot\_tools](#recipe_modules-depot_tools), [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/runtime][recipe_engine/recipe_modules/runtime], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/depot_tools/examples/full.py#14)(api):**
 ### *recipes* / [fetch\_end\_to\_end\_test](/recipes/recipes/fetch_end_to_end_test.py)
 
 [DEPS](/recipes/recipes/fetch_end_to_end_test.py#5): [bot\_update](#recipe_modules-bot_update), [gclient](#recipe_modules-gclient), [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/file][recipe_engine/recipe_modules/file], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipes/fetch_end_to_end_test.py#16)(api):**
 ### *recipes* / [gclient:examples/full](/recipes/recipe_modules/gclient/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/gclient/examples/full.py#5): [gclient](#recipe_modules-gclient), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/gclient/examples/full.py#64)(api):**
 ### *recipes* / [gclient:tests/diff\_deps](/recipes/recipe_modules/gclient/tests/diff_deps.py)
 
 [DEPS](/recipes/recipe_modules/gclient/tests/diff_deps.py#7): [gclient](#recipe_modules-gclient), [recipe\_engine/assertions][recipe_engine/recipe_modules/assertions], [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/gclient/tests/diff_deps.py#18)(api):**
 ### *recipes* / [gclient:tests/patch\_project](/recipes/recipe_modules/gclient/tests/patch_project.py)
 
 [DEPS](/recipes/recipe_modules/gclient/tests/patch_project.py#9): [gclient](#recipe_modules-gclient), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/properties][recipe_engine/recipe_modules/properties]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/gclient/tests/patch_project.py#18)(api):**
 ### *recipes* / [gclient:tests/sync\_failure](/recipes/recipe_modules/gclient/tests/sync_failure.py)
 
 [DEPS](/recipes/recipe_modules/gclient/tests/sync_failure.py#7): [gclient](#recipe_modules-gclient), [recipe\_engine/path][recipe_engine/recipe_modules/path]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/gclient/tests/sync_failure.py#13)(api):**
 ### *recipes* / [gerrit:examples/full](/recipes/recipe_modules/gerrit/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/gerrit/examples/full.py#5): [gerrit](#recipe_modules-gerrit), [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/gerrit/examples/full.py#11)(api):**
 ### *recipes* / [git:examples/full](/recipes/recipe_modules/git/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/git/examples/full.py#5): [git](#recipe_modules-git), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/git/examples/full.py#18)(api):**
 ### *recipes* / [git\_cl:examples/full](/recipes/recipe_modules/git_cl/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/git_cl/examples/full.py#9): [git\_cl](#recipe_modules-git_cl), [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/git_cl/examples/full.py#17)(api):**
 ### *recipes* / [gitiles:examples/full](/recipes/recipe_modules/gitiles/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/gitiles/examples/full.py#5): [gitiles](#recipe_modules-gitiles), [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/gitiles/examples/full.py#14)(api):**
 ### *recipes* / [gitiles:tests/parse\_repo\_url](/recipes/recipe_modules/gitiles/tests/parse_repo_url.py)
 
 [DEPS](/recipes/recipe_modules/gitiles/tests/parse_repo_url.py#5): [gitiles](#recipe_modules-gitiles), [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/gitiles/tests/parse_repo_url.py#12)(api):**
 ### *recipes* / [gsutil:examples/full](/recipes/recipe_modules/gsutil/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/gsutil/examples/full.py#5): [gsutil](#recipe_modules-gsutil), [recipe\_engine/path][recipe_engine/recipe_modules/path]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/gsutil/examples/full.py#11)(api):**
 
 Move things around in a loop!
@@ -1120,65 +1180,83 @@ Move things around in a loop!
 
 [DEPS](/recipes/recipe_modules/osx_sdk/examples/full.py#5): [osx\_sdk](#recipe_modules-osx_sdk), [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/osx_sdk/examples/full.py#13)(api):**
 ### *recipes* / [presubmit:examples/full](/recipes/recipe_modules/presubmit/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/presubmit/examples/full.py#5): [presubmit](#recipe_modules-presubmit), [recipe\_engine/json][recipe_engine/recipe_modules/json]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/presubmit/examples/full.py#11)(api):**
 ### *recipes* / [presubmit:tests/execute](/recipes/recipe_modules/presubmit/tests/execute.py)
 
 [DEPS](/recipes/recipe_modules/presubmit/tests/execute.py#10): [gclient](#recipe_modules-gclient), [presubmit](#recipe_modules-presubmit), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/cq][recipe_engine/recipe_modules/cq], [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/runtime][recipe_engine/recipe_modules/runtime]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/presubmit/tests/execute.py#23)(api):**
 ### *recipes* / [presubmit:tests/prepare](/recipes/recipe_modules/presubmit/tests/prepare.py)
 
 [DEPS](/recipes/recipe_modules/presubmit/tests/prepare.py#9): [gclient](#recipe_modules-gclient), [presubmit](#recipe_modules-presubmit), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/runtime][recipe_engine/recipe_modules/runtime]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/presubmit/tests/prepare.py#26)(api, patch_project, patch_repository_url):**
 ### *recipes* / [tryserver:examples/full](/recipes/recipe_modules/tryserver/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/tryserver/examples/full.py#5): [gerrit](#recipe_modules-gerrit), [tryserver](#recipe_modules-tryserver), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/json][recipe_engine/recipe_modules/json], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/tryserver/examples/full.py#21)(api):**
 ### *recipes* / [tryserver:tests/gerrit\_change\_fetch\_ref\_timeout](/recipes/recipe_modules/tryserver/tests/gerrit_change_fetch_ref_timeout.py)
 
 [DEPS](/recipes/recipe_modules/tryserver/tests/gerrit_change_fetch_ref_timeout.py#7): [gerrit](#recipe_modules-gerrit), [tryserver](#recipe_modules-tryserver), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/properties][recipe_engine/recipe_modules/properties]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/tryserver/tests/gerrit_change_fetch_ref_timeout.py#15)(api):**
 ### *recipes* / [tryserver:tests/gerrit\_change\_owner](/recipes/recipe_modules/tryserver/tests/gerrit_change_owner.py)
 
 [DEPS](/recipes/recipe_modules/tryserver/tests/gerrit_change_owner.py#7): [gerrit](#recipe_modules-gerrit), [tryserver](#recipe_modules-tryserver), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/tryserver/tests/gerrit_change_owner.py#14)(api):**
 ### *recipes* / [tryserver:tests/gerrit\_change\_target\_ref](/recipes/recipe_modules/tryserver/tests/gerrit_change_target_ref.py)
 
 [DEPS](/recipes/recipe_modules/tryserver/tests/gerrit_change_target_ref.py#7): [gerrit](#recipe_modules-gerrit), [tryserver](#recipe_modules-tryserver), [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/tryserver/tests/gerrit_change_target_ref.py#16)(api):**
 ### *recipes* / [windows\_sdk:examples/full](/recipes/recipe_modules/windows_sdk/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/windows_sdk/examples/full.py#5): [windows\_sdk](#recipe_modules-windows_sdk), [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
+PYTHON_VERSION_COMPATIBILITY: PY2
+
 &mdash; **def [RunSteps](/recipes/recipe_modules/windows_sdk/examples/full.py#13)(api):**
 
-[recipe_engine/recipe_modules/assertions]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-assertions
-[recipe_engine/recipe_modules/buildbucket]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-buildbucket
-[recipe_engine/recipe_modules/cipd]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-cipd
-[recipe_engine/recipe_modules/commit_position]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-commit_position
-[recipe_engine/recipe_modules/context]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-context
-[recipe_engine/recipe_modules/cq]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-cq
-[recipe_engine/recipe_modules/file]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-file
-[recipe_engine/recipe_modules/json]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-json
-[recipe_engine/recipe_modules/milo]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-milo
-[recipe_engine/recipe_modules/path]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-path
-[recipe_engine/recipe_modules/platform]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-platform
-[recipe_engine/recipe_modules/properties]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-properties
-[recipe_engine/recipe_modules/python]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-python
-[recipe_engine/recipe_modules/raw_io]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-raw_io
-[recipe_engine/recipe_modules/resultdb]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-resultdb
-[recipe_engine/recipe_modules/runtime]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-runtime
-[recipe_engine/recipe_modules/step]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-step
-[recipe_engine/recipe_modules/url]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-url
-[recipe_engine/recipe_modules/version]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/README.recipes.md#recipe_modules-version
-[recipe_engine/wkt/RecipeApi]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/a357987df4e8bee834c80cace3066518004e7e27/recipe_engine/recipe_api.py#881
+[recipe_engine/recipe_modules/assertions]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-assertions
+[recipe_engine/recipe_modules/buildbucket]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-buildbucket
+[recipe_engine/recipe_modules/cipd]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-cipd
+[recipe_engine/recipe_modules/commit_position]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-commit_position
+[recipe_engine/recipe_modules/context]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-context
+[recipe_engine/recipe_modules/cq]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-cq
+[recipe_engine/recipe_modules/file]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-file
+[recipe_engine/recipe_modules/json]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-json
+[recipe_engine/recipe_modules/milo]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-milo
+[recipe_engine/recipe_modules/path]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-path
+[recipe_engine/recipe_modules/platform]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-platform
+[recipe_engine/recipe_modules/properties]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-properties
+[recipe_engine/recipe_modules/python]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-python
+[recipe_engine/recipe_modules/raw_io]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-raw_io
+[recipe_engine/recipe_modules/resultdb]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-resultdb
+[recipe_engine/recipe_modules/runtime]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-runtime
+[recipe_engine/recipe_modules/step]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-step
+[recipe_engine/recipe_modules/url]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-url
+[recipe_engine/recipe_modules/version]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/README.recipes.md#recipe_modules-version
+[recipe_engine/wkt/RecipeApi]: https://chromium.googlesource.com/infra/luci/recipes-py.git/+/5a08ca64d8089f0668cbdb50de4cfe366b237982/recipe_engine/recipe_api.py#881