Actually, we can work around needing dateutil.

If dateutil is present, we'll use that. If not, we'll use
some regexes from the fixed_datetime module.

sleekxmpp/plugins/__init__.py

@@ -6,20 +6,6 @@
     See the file LICENSE for copying permission.
 """
 __all__ = ['xep_0004', 'xep_0009', 'xep_0012', 'xep_0030', 'xep_0033',
-           'xep_0045', 'xep_0050', 'xep_0060', 'xep_0066', 'xep_0085',
-           'xep_0086', 'xep_0092', 'xep_0128', 'xep_0199', 'xep_0203',
-           'xep_0224', 'xep_0249', 'gmail_notify']
-
-# Some plugins may require external dependencies beyond what the
-# core SleekXMPP installation requires. Thus they should only by
-# imported automatically if those dependecies are met.
-
-HAVE_DATEUTIL = True
-try:
-    import dateutil
-except:
-    HAVE_DATEUTIL = False
-
-if HAVE_DATEUTIL:
-    __all__.append('xep_0082')
-    __all__.append('xep_0202')
+           'xep_0045', 'xep_0050', 'xep_0060', 'xep_0066', 'xep_0082',
+           'xep_0085', 'xep_0086', 'xep_0092', 'xep_0128', 'xep_0199',
+           'xep_0082', 'xep_0203', 'xep_0224', 'xep_0249', 'gmail_notify']

sleekxmpp/plugins/xep_0082.py

@@ -10,13 +10,7 @@ import logging
 import datetime as dt
 
 from sleekxmpp.plugins.base import base_plugin
-
-try:
-    from dateutil import parser
-    from dateutil.tz import tzoffset, tzutc
-except e:
-    log = logging.getLogger(__name__)
-    log.warning("XEP-0082 plugin requires dateutil")
+from sleekxmpp.thirdparty import tzutc, tzoffset, parse_iso
 
 
 # =====================================================================
@@ -31,7 +25,8 @@ def parse(time_str):
     Arguments:
         time_str -- A formatted timestamp string.
     """
-    return parser.parse(time_str)
+    return parse_iso(time_str)
+
 
 def format_date(time_obj):
     """
@@ -52,7 +47,7 @@ def format_time(time_obj):
     Return a formatted string version of a time object.
 
     format:
-        hh:mm:ss[.sss][TZD
+        hh:mm:ss[.sss][TZD]
 
     arguments:
         time_obj -- A time or datetime object.

sleekxmpp/plugins/xep_0202/__init__.py

@@ -6,23 +6,7 @@
     See the file LICENSE for copying permission.
 """
 
-import logging
-import sleekxmpp
 
-
-log = logging.getLogger(__name__)
-
-
-HAVE_DATEUTIL = True
-try:
-    import dateutil
-except:
-    HAVE_DATEUTIL = False
-
-
-if HAVE_DATEUTIL:
-    from sleekxmpp.plugins.xep_0202 import stanza
-    from sleekxmpp.plugins.xep_0202.stanza import EntityTime
-    from sleekxmpp.plugins.xep_0202.time import xep_0202
-else:
-    log.warning("XEP-0202 requires the dateutil package")
+from sleekxmpp.plugins.xep_0202 import stanza
+from sleekxmpp.plugins.xep_0202.stanza import EntityTime
+from sleekxmpp.plugins.xep_0202.time import xep_0202

sleekxmpp/plugins/xep_0202/stanza.py

@@ -11,12 +11,7 @@ import datetime as dt
 
 from sleekxmpp.xmlstream import ElementBase
 from sleekxmpp.plugins import xep_0082
-
-try:
-    from dateutil.tz import tzutc
-except:
-    log = logging.getLogger(__name__)
-    log.warning("XEP-0202 plugin requies dateutil package")
+from sleekxmpp.thirdparty import tzutc, tzoffset
 
 
 class EntityTime(ElementBase):