Move the freezing function from genscript.py to a new module freeze_support.py

_pytest/config.py

@@ -65,7 +65,8 @@ _preinit = []
 default_plugins = (
      "mark main terminal runner python pdb unittest capture skipping "
      "tmpdir monkeypatch recwarn pastebin helpconfig nose assertion "
-     "junitxml resultlog doctest cacheprovider setuponly setupplan").split()
+     "junitxml resultlog doctest cacheprovider freeze_support "
+     "setuponly setupplan").split()
 
 builtin_plugins = set(default_plugins)
 builtin_plugins.add("pytester")

_pytest/freeze_support.py

@@ -0,0 +1,45 @@
+"""
+Provides a function to report all internal modules for using freezing tools
+pytest
+"""
+
+def pytest_namespace():
+    return {'freeze_includes': freeze_includes}
+
+
+def freeze_includes():
+    """
+    Returns a list of module names used by py.test that should be
+    included by cx_freeze.
+    """
+    import py
+    import _pytest
+    result = list(_iter_all_modules(py))
+    result += list(_iter_all_modules(_pytest))
+    return result
+
+
+def _iter_all_modules(package, prefix=''):
+    """
+    Iterates over the names of all modules that can be found in the given
+    package, recursively.
+    Example:
+        _iter_all_modules(_pytest) ->
+            ['_pytest.assertion.newinterpret',
+             '_pytest.capture',
+             '_pytest.core',
+             ...
+            ]
+    """
+    import os
+    import pkgutil
+    if type(package) is not str:
+        path, prefix = package.__path__[0], package.__name__ + '.'
+    else:
+        path = package
+    for _, name, is_package in pkgutil.iter_modules([path]):
+        if is_package:
+            for m in _iter_all_modules(os.path.join(path, name), prefix=name + '.'):
+                yield prefix + m
+        else:
+            yield prefix + name