starting branch to add ironpython support

* adds hack to disable saslprep() since stringprep is missing

2 files changed, 30 insertions, 3 deletions

diff --git a/passlib/tests/test_utils.py b/passlib/tests/test_utils.py
index 4c3a6d2..678ae06 100644
--- a/passlib/tests/test_utils.py
+++ b/passlib/tests/test_utils.py
@@ -241,7 +241,13 @@ class MiscTest(TestCase):
 
     def test_saslprep(self):
         "test saslprep() unicode normalizer"
-        from passlib.utils import saslprep as sp
+        from passlib.utils import saslprep as sp, _ipy_missing_stringprep
+
+        if IRONPYTHON:
+            self.assertTrue(_ipy_missing_stringprep,
+                "alert passlib author that IPY has stringprep support!")
+            self.assertRaises(NotImplementedError, sp, u('abc'))
+            raise self.skipTest("stringprep missing under IPY")
 
         # invalid types
         self.assertRaises(TypeError, sp, None)
diff --git a/passlib/utils/__init__.py b/passlib/utils/__init__.py
index e0b9e75..a283299 100644
--- a/passlib/utils/__init__.py
+++ b/passlib/utils/__init__.py
@@ -1,5 +1,13 @@
 """passlib.utils -- helpers for writing password hashes"""
 #=============================================================================
+# Python VM identification
+#=============================================================================
+import sys
+PYPY = hasattr(sys, "pypy_version_info")
+JYTHON = sys.platform.startswith('java')
+IRONPYTHON = 'IronPython' in sys.version
+
+#=============================================================================
 #imports
 #=============================================================================
 #core
@@ -9,9 +17,15 @@ from functools import update_wrapper
 import logging; log = logging.getLogger(__name__)
 import math
 import os
-import sys
 import random
-import stringprep
+_ipy_missing_stringprep = False
+if IRONPYTHON:
+    try:
+        import stringprep
+    except ImportError:
+        _ipy_missing_stringprep = True
+else:
+    import stringprep
 import time
 import unicodedata
 from warnings import warn
@@ -431,6 +445,13 @@ def saslprep(source, errname="value"):
 
     return data
 
+# implement stub for ironpython
+if _ipy_missing_stringprep:
+    def saslprep(source, errname="value"):
+        "ironpython stub for saslprep()"
+        raise NotImplementedError("saslprep() requires the stdlib 'stringprep' "
+                                  "module, which is not available under IronPython")
+
 #=============================================================================
 # bytes helpers
 #=============================================================================