Core mojo API for python.

third_party/cython/python_flags.py

Index: third_party/cython/python_flags.py
diff --git a/third_party/cython/python_flags.py b/third_party/cython/python_flags.py
new file mode 100644
index 0000000000000000000000000000000000000000..b7d4579175897efe14639181713a41f8473ac8f1
--- /dev/null
+++ b/third_party/cython/python_flags.py
@@ -0,0 +1,50 @@
+# Copyright 2014 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.
+

[pkl (ping after 24h if needed), 2014/08/21 09:32:48]

Please add docstring. This looks like something that you will invoke from
command line, so it would be helpful to have a docstring describing what this is
for and what the arguments mean (instead of requiring everyone to read the
code).

[qsr, 2014/08/21 12:10:05]

Done.

+import argparse
+import os
+import sys
+
+from distutils import sysconfig
+from distutils.command import build_ext
+from distutils.dist import Distribution
+from distutils.extension import Extension
+
+def main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--libraries', help='Returns libraries', action='store_true')
+  parser.add_argument('--includes', help='Returns includes',
+                      action='store_true')
+  parser.add_argument('--defines', help='Returns defines',
+                      action='store_true')
+  parser.add_argument('--library_dirs', help='Returns library_dirs',
+                      action='store_true')
+  opts = parser.parse_args()
+
+  ext = Extension('Dummy', [])
+  b = build_ext.build_ext(Distribution())
+  b.initialize_options()
+  b.finalize_options()
+  result = []
+  if opts.libraries:
+    libraries = b.get_libraries(ext)
+    if sys.platform == 'darwin':
+      libraries += [ '-lpython%s' % sys.version[:3] ]
+    result = result + libraries
+  if opts.includes:
+    result = result  + b.include_dirs
+  if opts.defines:
+    if os.name == 'nt':
+      result.append('PyMODINIT_FUNC=extern \\"C\\" __declspec(dllexport) void')
+    else:
+      result.append(
+          'PyMODINIT_FUNC=extern \\"C\\" __attribute__((visibility(\\"default\\"))) void')
+  if opts.library_dirs:
+    if sys.platform == 'darwin':
+      result += [ '%s/lib' % sysconfig.get_config_vars('prefix')[0] ]

[pkl (ping after 24h if needed), 2014/08/21 09:32:48]

Can you use result.append(...) so it is consistent with the earlier uses?

[qsr, 2014/08/21 12:10:05]

Done.

+
+  print ''.join(['"%s"' % x for x in result])
+
+if __name__ == '__main__':
+  main()