third_party: install yapf with pip

gclient_config.py

@@ -35,11 +35,6 @@ solutions = [{
     'https://github.com/cpplint/cpplint.git@a33992f68f36fcaa6d0f531a25012a4c474d3542',
     'name':
     'cpplint'
-}, {
-    'url':
-    'https://github.com/google/yapf.git@32afb3004e0967eab351ee83e3d9d55e3a02fd9b',
-    'name':
-    'yapf'
 }, {
     'url':
     'https://github.com/google/flatbuffers.git@d840856093fa7b935b0d6378c436bd633d006c8c',

third_party

@@ -1 +1 @@
-Subproject commit 0da585d1d855ad720b7e5a5a0d0af380e66216f3
+Subproject commit 739aa43d724ecf1b0ecce7dac0b2c1f1ae098bbd

tools/format.py

@@ -3,7 +3,8 @@
 from glob import glob
 import os
 import sys
-from third_party import third_party_path, fix_symlinks, google_env, clang_format_path
+from third_party import fix_symlinks, google_env, python_env
+from third_party import clang_format_path, third_party_path
 from util import root_path, run, find_exts, platform
 
 fix_symlinks()
@@ -27,10 +28,10 @@ for fn in ["BUILD.gn", ".gn"] + find_exts("build_extra", ".gn", ".gni"):
 #     'third_party/v8/tools/clang', which contains many .py files.
 #   * These third party python files shouldn't be formatted.
 #   * The tools directory has no subdirectories, so `glob()` is sufficient.
-
-run([sys.executable, "third_party/yapf/yapf", "-i"] + glob("tools/*.py") +
-    find_exts("build_extra", ".py"),
-    merge_env={"PYTHONPATH": "third_party/yapf"})
+# TODO(ry) Install yapf in third_party.
+run([sys.executable, "third_party/python_packages/bin/yapf", "-i"] +
+    glob("tools/*.py") + find_exts("build_extra", ".py"),
+    env=python_env())
 
 # yapf: disable
 run(["node", prettier, "--write"] +

tools/third_party.py

@@ -160,6 +160,14 @@ def run_pip():
         cwd=third_party_path,
         merge_env=pip_env)
 
+    # Get yapf.
+    # Install pywin32.
+    run([
+        sys.executable, "-m", "pip", "install", "--upgrade", "--target",
+        python_packages_path, "yapf"
+    ],
+        cwd=third_party_path,
+        merge_env=pip_env)
     # Remove the temporary pip installation.
     rmtree(temp_python_home)