default to pycrypto backend

Author: Michael Davis

README.rst

@@ -40,9 +40,11 @@ necessary, other RSA backends are supported. Both pycrpyto and crytography are o
 In order to use a custom backend, install python-jose with the appropriate extra.
 
 ::
+
     $ pip install python-jose[pycrypto]
     $ pip install python-jose[crytography]
 
+
 Usage
 -----
 

jose/backends/__init__.py

@@ -1,9 +1,9 @@
 
 try:
-    from jose.backends.cryptography_backend import CryptographyRSAKey as RSAKey
-except ImportError:
     from jose.backends.pycrypto_backend import RSAKey
-
+except ImportError:
+    from jose.backends.cryptography_backend import CryptographyRSAKey as RSAKey
+    
 try:
     from jose.backends.cryptography_backend import CryptographyECKey as ECKey
 except ImportError: