[Open Screen] Update scripts to python3.

This migrates Open Screen scripts to use python3.
python2 is being removed from gLinux soon.

Bug: b/195416694
Change-Id: Ib3ab4cb3d6d0e8129e6b3ee06dd31b339b014358
Reviewed-on: https://chromium-review.googlesource.com/c/openscreen/+/3069195
Reviewed-by: Ryan Keane <rwkeane@google.com>
Commit-Queue: mark a. foltz <mfoltz@chromium.org>

14 files changed, 21 insertions, 18 deletions

diff --git a/.gn b/.gn
index 68845555..8972b895 100644
--- a/.gn
+++ b/.gn
@@ -1,2 +1,3 @@
 # The location of the build configuration file.
 buildconfig = "//build/config/BUILDCONFIG.gn"
+script_executable = "python3"
diff --git a/build/code_coverage/merge_lib.py b/build/code_coverage/merge_lib.py
index 4b956d06..ec951dc1 100644
--- a/build/code_coverage/merge_lib.py
+++ b/build/code_coverage/merge_lib.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env/python
+#!/usr/bin/env python3
 # Copyright 2020 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
@@ -325,4 +325,3 @@ def get_shards_to_retry(bad_profiles):
     assert is_task_id(task_id)
     bad_shard_ids.add(task_id)
   return bad_shard_ids
-
diff --git a/build/code_coverage/merge_results.py b/build/code_coverage/merge_results.py
index 67e63365..40bf7ca3 100644
--- a/build/code_coverage/merge_results.py
+++ b/build/code_coverage/merge_results.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env/python
+#!/usr/bin/env python3
 # Copyright 2020 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
diff --git a/build/code_coverage/merge_steps.py b/build/code_coverage/merge_steps.py
index f1140938..af876af9 100644
--- a/build/code_coverage/merge_steps.py
+++ b/build/code_coverage/merge_steps.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env/python
+#!/usr/bin/env python3
 # Copyright 2020 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
diff --git a/build/scripts/dir_exists.py b/build/scripts/dir_exists.py
index 1e633d22..16400f58 100755
--- a/build/scripts/dir_exists.py
+++ b/build/scripts/dir_exists.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright 2019 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
diff --git a/build/scripts/install-sysroot.py b/build/scripts/install-sysroot.py
index 374598f1..898cc7ce 100755
--- a/build/scripts/install-sysroot.py
+++ b/build/scripts/install-sysroot.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 
 # Copyright 2019 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
@@ -65,8 +65,8 @@ def GetSha1(filename):
 
 
 def GetSysrootDict(target_platform, target_arch):
-    """Gets the sysroot information for a given platform and arch from the sysroots.json
-    file."""
+    """Gets the sysroot information for a given platform and arch from the
+       sysroots.json file."""
     if target_arch not in VALID_ARCHS:
         raise Error('Unknown architecture: %s' % target_arch)
 
@@ -92,7 +92,8 @@ def DownloadFile(url, local_path):
         raise Error('Failed to download %s' % url)
 
 def ValidateFile(local_path, expected_sum):
-    """Generates the SHA1 hash of a local file to compare with an expected hashsum."""
+    """Generates the SHA1 hash of a local file to compare with an expected
+       hashsum."""
     sha1sum = GetSha1(local_path)
     if sha1sum != expected_sum:
         raise Error('Tarball sha1sum is wrong.'
diff --git a/build/scripts/sysroot_ld_path.py b/build/scripts/sysroot_ld_path.py
index 85873812..4502f258 100755
--- a/build/scripts/sysroot_ld_path.py
+++ b/build/scripts/sysroot_ld_path.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright 2019 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
diff --git a/testing/libfuzzer/archive_corpus.py b/testing/libfuzzer/archive_corpus.py
index e80848dd..e1960854 100755
--- a/testing/libfuzzer/archive_corpus.py
+++ b/testing/libfuzzer/archive_corpus.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 #
 # Copyright 2019 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
diff --git a/testing/libfuzzer/gen_fuzzer_config.py b/testing/libfuzzer/gen_fuzzer_config.py
index bde9e146..d195b5a1 100755
--- a/testing/libfuzzer/gen_fuzzer_config.py
+++ b/testing/libfuzzer/gen_fuzzer_config.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python2
+#!/usr/bin/env python3
 #
 # Copyright (c) 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
@@ -8,8 +8,8 @@
 Invoked by GN from fuzzer_test.gni.
 """
 
-import ConfigParser
 import argparse
+import configparser
 import os
 import sys
 
@@ -52,7 +52,7 @@ def main():
           args.asan_options or args.msan_options or args.ubsan_options):
     return
 
-  config = ConfigParser.ConfigParser()
+  config = configparser.ConfigParser()
   libfuzzer_options = []
   if args.dict:
     libfuzzer_options.append(('dict', os.path.basename(args.dict)))
diff --git a/tools/cddl/cddl.py b/tools/cddl/cddl.py
index 28436f27..8625a9ae 100644
--- a/tools/cddl/cddl.py
+++ b/tools/cddl/cddl.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 # Copyright 2018 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
diff --git a/tools/convert_to_data_file.py b/tools/convert_to_data_file.py
index 05456f08..c6af0da8 100755
--- a/tools/convert_to_data_file.py
+++ b/tools/convert_to_data_file.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright 2020 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
diff --git a/tools/curlish.py b/tools/curlish.py
index c0324b02..956c5c43 100755
--- a/tools/curlish.py
+++ b/tools/curlish.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright 2020 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
diff --git a/tools/download-clang-update-script.py b/tools/download-clang-update-script.py
index b8b67a69..203862ec 100755
--- a/tools/download-clang-update-script.py
+++ b/tools/download-clang-update-script.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright 2020 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
diff --git a/tools/download-yajsv.py b/tools/download-yajsv.py
index d42d3f3a..b127b1ff 100755
--- a/tools/download-yajsv.py
+++ b/tools/download-yajsv.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright 2020 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.