added setdefaultencoding method so reload(sys) not needed

reload(sys) could cause problem in user code - ie, sys.stdout, excepthook, and displayhook would be reset, etc

25 files changed, 74 insertions, 50 deletions

diff --git a/docs/getting_started/echobot.rst b/docs/getting_started/echobot.rst
index 053a76f2..7d29ec58 100644
--- a/docs/getting_started/echobot.rst
+++ b/docs/getting_started/echobot.rst
@@ -69,8 +69,8 @@ use ASCII. We can get Python to use UTF-8 as the default encoding by including:
 .. code-block:: python
 
     if sys.version_info < (3, 0):
-        reload(sys)
-        sys.setdefaultencoding('utf8')
+        from sleekxmpp.util.misc_ops import setdefaultencoding
+        setdefaultencoding('utf8')
 
 .. warning::
 
diff --git a/examples/adhoc_provider.py b/examples/adhoc_provider.py
index a72158c3..86a575c9 100755
--- a/examples/adhoc_provider.py
+++ b/examples/adhoc_provider.py
@@ -21,8 +21,8 @@ import sleekxmpp
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/adhoc_user.py b/examples/adhoc_user.py
index bbd42d81..7df9f793 100755
--- a/examples/adhoc_user.py
+++ b/examples/adhoc_user.py
@@ -21,8 +21,8 @@ import sleekxmpp
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/admin_commands.py b/examples/admin_commands.py
index 13b1b179..5d9bf841 100755
--- a/examples/admin_commands.py
+++ b/examples/admin_commands.py
@@ -21,8 +21,8 @@ import sleekxmpp
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/custom_stanzas/custom_stanza_provider.py b/examples/custom_stanzas/custom_stanza_provider.py
index b532c17c..b0e00247 100755
--- a/examples/custom_stanzas/custom_stanza_provider.py
+++ b/examples/custom_stanzas/custom_stanza_provider.py
@@ -28,8 +28,8 @@ from stanza import Action
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
@@ -56,8 +56,8 @@ class ActionBot(sleekxmpp.ClientXMPP):
             StanzaPath('iq@type=set/action'),
             self._handle_action))
 
-        self.add_event_handler('custom_action', 
-                self._handle_action_event, 
+        self.add_event_handler('custom_action',
+                self._handle_action_event,
                 threaded=True)
 
         register_stanza_plugin(Iq, Action)
diff --git a/examples/custom_stanzas/custom_stanza_user.py b/examples/custom_stanzas/custom_stanza_user.py
index 5b5042c7..418e3218 100755
--- a/examples/custom_stanzas/custom_stanza_user.py
+++ b/examples/custom_stanzas/custom_stanza_user.py
@@ -26,8 +26,8 @@ from stanza import Action
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/disco_browser.py b/examples/disco_browser.py
index 67e12d19..aeb4fb5e 100755
--- a/examples/disco_browser.py
+++ b/examples/disco_browser.py
@@ -23,8 +23,8 @@ from sleekxmpp.exceptions import IqError, IqTimeout
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/download_avatars.py b/examples/download_avatars.py
index b621c940..64300cff 100644
--- a/examples/download_avatars.py
+++ b/examples/download_avatars.py
@@ -24,8 +24,8 @@ from sleekxmpp.exceptions import XMPPError
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/echo_client.py b/examples/echo_client.py
index 73990089..f2d38847 100755
--- a/examples/echo_client.py
+++ b/examples/echo_client.py
@@ -21,8 +21,8 @@ import sleekxmpp
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/echo_component.py b/examples/echo_component.py
index 82f6eb9f..9a24f2fa 100755
--- a/examples/echo_component.py
+++ b/examples/echo_component.py
@@ -22,8 +22,8 @@ from sleekxmpp.componentxmpp import ComponentXMPP
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/gtalk_custom_domain.py b/examples/gtalk_custom_domain.py
index 0226c146..c974fc55 100755
--- a/examples/gtalk_custom_domain.py
+++ b/examples/gtalk_custom_domain.py
@@ -25,8 +25,8 @@ from sleekxmpp.xmlstream import cert
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/ibb_transfer/ibb_receiver.py b/examples/ibb_transfer/ibb_receiver.py
index b11acabf..18d18f92 100755
--- a/examples/ibb_transfer/ibb_receiver.py
+++ b/examples/ibb_transfer/ibb_receiver.py
@@ -21,8 +21,8 @@ import sleekxmpp
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/ibb_transfer/ibb_sender.py b/examples/ibb_transfer/ibb_sender.py
index cd856378..7c380b68 100755
--- a/examples/ibb_transfer/ibb_sender.py
+++ b/examples/ibb_transfer/ibb_sender.py
@@ -21,8 +21,8 @@ import sleekxmpp
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/muc.py b/examples/muc.py
index 7b93da16..5b5c764c 100755
--- a/examples/muc.py
+++ b/examples/muc.py
@@ -21,8 +21,8 @@ import sleekxmpp
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/ping.py b/examples/ping.py
index fe4d23a4..0e53b1dd 100755
--- a/examples/ping.py
+++ b/examples/ping.py
@@ -21,8 +21,8 @@ import sleekxmpp
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/proxy_echo_client.py b/examples/proxy_echo_client.py
index 25bfc891..98935b9c 100755
--- a/examples/proxy_echo_client.py
+++ b/examples/proxy_echo_client.py
@@ -21,8 +21,8 @@ import sleekxmpp
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/pubsub_client.py b/examples/pubsub_client.py
index 0a244f3b..2fa419fb 100644
--- a/examples/pubsub_client.py
+++ b/examples/pubsub_client.py
@@ -12,8 +12,8 @@ from sleekxmpp.xmlstream import ET, tostring
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/pubsub_events.py b/examples/pubsub_events.py
index 6fe7159b..0dfb6c65 100644
--- a/examples/pubsub_events.py
+++ b/examples/pubsub_events.py
@@ -14,8 +14,8 @@ from sleekxmpp.xmlstream.handler import Callback
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/register_account.py b/examples/register_account.py
index 20377b26..bd9b1160 100644
--- a/examples/register_account.py
+++ b/examples/register_account.py
@@ -22,8 +22,8 @@ from sleekxmpp.exceptions import IqError, IqTimeout
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/roster_browser.py b/examples/roster_browser.py
index b366d00f..485ac941 100644
--- a/examples/roster_browser.py
+++ b/examples/roster_browser.py
@@ -24,8 +24,8 @@ from sleekxmpp.exceptions import IqError, IqTimeout
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/send_client.py b/examples/send_client.py
index 5b34bbc9..192469ae 100755
--- a/examples/send_client.py
+++ b/examples/send_client.py
@@ -21,8 +21,8 @@ import sleekxmpp
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/set_avatar.py b/examples/set_avatar.py
index ec32a7c4..cae93c99 100644
--- a/examples/set_avatar.py
+++ b/examples/set_avatar.py
@@ -26,8 +26,8 @@ from sleekxmpp.exceptions import XMPPError
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/examples/thirdparty_auth.py b/examples/thirdparty_auth.py
index 727311ae..f4d5c400 100644
--- a/examples/thirdparty_auth.py
+++ b/examples/thirdparty_auth.py
@@ -29,8 +29,8 @@ from sleekxmpp.xmlstream import JID
 # throughout SleekXMPP, we will set the default encoding
 # ourselves to UTF-8.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 else:
     raw_input = input
 
diff --git a/sleekxmpp/basexmpp.py b/sleekxmpp/basexmpp.py
index 4df7f11a..c3ff5ba3 100644
--- a/sleekxmpp/basexmpp.py
+++ b/sleekxmpp/basexmpp.py
@@ -43,8 +43,8 @@ log = logging.getLogger(__name__)
 # In order to make sure that Unicode is handled properly
 # in Python 2.x, reset the default encoding.
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 
 
 class BaseXMPP(XMLStream):
diff --git a/sleekxmpp/util/misc_ops.py b/sleekxmpp/util/misc_ops.py
index 9bb1db4b..3b246625 100644
--- a/sleekxmpp/util/misc_ops.py
+++ b/sleekxmpp/util/misc_ops.py
@@ -125,3 +125,27 @@ def hashes():
         t += ['MD2']
     hashes = ['SHA-' + h[3:] for h in dir(hashlib) if h.startswith('sha')]
     return t + hashes
+
+def setdefaultencoding(encoding):
+    """
+    Set the current default string encoding used by the Unicode implementation.
+
+    Actually calls sys.setdefaultencoding under the hood - see the docs for that
+    for more details.  This method exists only as a way to call find/call it
+    even after it has been 'deleted' when the site module is executed.
+
+    :param string encoding: An encoding name, compatible with sys.setdefaultencoding
+    """
+    func = getattr(sys, 'setdefaultencoding', None)
+    if func is None:
+        import gc
+        import types
+        for obj in gc.get_objects():
+            if (isinstance(obj, types.BuiltinFunctionType)
+                    and obj.__name__ == 'setdefaultencoding'):
+                func = obj
+                break
+        if func is None:
+            raise RuntimeError("Could not find setdefaultencoding")
+        sys.setdefaultencoding = func
+    return func(encoding)
\ No newline at end of file