Add PYTHON_VERSION_COMPATIBILITY to depot_tools recipe module

Bug: 1227140
Change-Id: Id257157f0058bfff441cca400d1830a15d694a0f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3123934Reviewed-by: Anthony Polito <apolito@google.com>
Commit-Queue: Gavin Mak <gavinmak@google.com>

recipes/README.recipes.md

@@ -5,7 +5,7 @@
 **[Recipe Modules](#Recipe-Modules)**
   * [bot_update](#recipe_modules-bot_update) (Python3 ✅) — Recipe module to ensure a checkout is consistent on a bot.
   * [cipd](#recipe_modules-cipd) — API for interacting with CIPD.
-  * [depot_tools](#recipe_modules-depot_tools) — The `depot_tools` module provides safe functions to access paths within the depot_tools repo.
+  * [depot_tools](#recipe_modules-depot_tools) (Python3 ✅) — The `depot_tools` module provides safe functions to access paths within the depot_tools repo.
   * [gclient](#recipe_modules-gclient)
   * [gerrit](#recipe_modules-gerrit) (Python3 ✅)
   * [git](#recipe_modules-git)
@@ -23,7 +23,7 @@
   * [bot_update:tests/ensure_checkout](#recipes-bot_update_tests_ensure_checkout) (Python3 ✅)
   * [cipd:examples/full](#recipes-cipd_examples_full)
   * [cipd:examples/platform_suffix](#recipes-cipd_examples_platform_suffix)
-  * [depot_tools:examples/full](#recipes-depot_tools_examples_full)
+  * [depot_tools:examples/full](#recipes-depot_tools_examples_full) (Python3 ✅)
   * [fetch_end_to_end_test](#recipes-fetch_end_to_end_test)
   * [gclient:examples/full](#recipes-gclient_examples_full)
   * [gclient:tests/diff_deps](#recipes-gclient_tests_diff_deps)
@@ -238,9 +238,9 @@ parameters will be used.
 — **def [set\_tag](/recipes/recipe_modules/cipd/api.py#389)(self, package_name, version, tags):**
 ### *recipe_modules* / [depot\_tools](/recipes/recipe_modules/depot_tools)
 
-[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]
+[DEPS](/recipes/recipe_modules/depot_tools/__init__.py#7): [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
+PYTHON_VERSION_COMPATIBILITY: PY2+3
 
 The `depot_tools` module provides safe functions to access paths within
 the depot_tools repo.
@@ -1092,11 +1092,11 @@ PYTHON_VERSION_COMPATIBILITY: PY2
 — **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]
+[DEPS](/recipes/recipe_modules/depot_tools/examples/full.py#7): [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
+PYTHON_VERSION_COMPATIBILITY: PY2+3
 
-— **def [RunSteps](/recipes/recipe_modules/depot_tools/examples/full.py#14)(api):**
+— **def [RunSteps](/recipes/recipe_modules/depot_tools/examples/full.py#16)(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]

recipes/recipe_modules/depot_tools/__init__.py

@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+PYTHON_VERSION_COMPATIBILITY = 'PY2+3'
+
 DEPS = [
   'recipe_engine/context',
   'recipe_engine/platform',

recipes/recipe_modules/depot_tools/examples/full.py

@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+PYTHON_VERSION_COMPATIBILITY = 'PY2+3'
+
 DEPS = [
   'depot_tools',
   'recipe_engine/path',