[modutils]?setuptools pkg_resources support. Closes #8796

NO I won't write a test. Setup is to painful to reproduce for automatic test
(require virtualenv, setuptools, python setup.py develop, etc). See description
on the ticket.

1 files changed, 11 insertions, 0 deletions

diff --git a/modutils.py b/modutils.py
index 05f0602..834b5d3 100644
--- a/modutils.py
+++ b/modutils.py
@@ -574,6 +574,11 @@ def _search_zip(modpath, pic):
                 return ZIPFILE, abspath(filepath) + '/' + '/'.join(modpath), filepath
     raise ImportError('No module named %s' % '.'.join(modpath))
 
+try:
+    import pkg_resources
+except ImportError:
+    pkg_resources = None
+
 def _module_file(modpath, path=None):
     """get a module type / file path
 
@@ -604,6 +609,12 @@ def _module_file(modpath, path=None):
         checkeggs = True
     except AttributeError:
         checkeggs = False
+    # pkg_resources support (aka setuptools namespace packages)
+    if pkg_resources is not None and modpath[0] in pkg_resources._namespace_packages and len(modpath) > 1:
+        # setuptools has added into sys.modules a module object with proper
+        # __path__, get back information from there
+        module = sys.modules[modpath.pop(0)]
+        path = module.__path__
     imported = []
     while modpath:
         # take care to changes in find_module implementation wrt builtin modules