Adding Mitogen plugin and strategy.

plugins/mitogen-0.3.44/tests/testmods/simple_pkg/a.py

@@ -0,0 +1,5 @@
+import testmods.simple_pkg.b
+
+
+def subtract_one_add_two(n):
+    return testmods.simple_pkg.b.subtract_one(n) + 2

plugins/mitogen-0.3.44/tests/testmods/simple_pkg/b.py

@@ -0,0 +1,2 @@
+def subtract_one(n):
+    return n - 1

plugins/mitogen-0.3.44/tests/testmods/simple_pkg/imports_replaces_self.py

@@ -0,0 +1,6 @@
+# issue #590: this module imports a module that replaces itself in sys.modules
+# during initialization.
+import testmods.simple_pkg.replaces_self
+
+def subtract_one(n):
+    return testmods.simple_pkg.replaces_self.subtract_one(n)

plugins/mitogen-0.3.44/tests/testmods/simple_pkg/ping.py

@@ -0,0 +1,4 @@
+def ping(*args):
+    return args
+
+

plugins/mitogen-0.3.44/tests/testmods/simple_pkg/replaces_self.py

@@ -0,0 +1,4 @@
+# issue #590: this module replaces itself in sys.modules during initialization.
+import sys
+import testmods.simple_pkg.b
+sys.modules[__name__] = testmods.simple_pkg.b