Sadly, dateutil is not actually part of the standard lib.

Thus, using the XEP-0082 and XEP-0202 introduces a dependency
on the dateutil package (installable using pip install python-dateutil).

Maybe we'll be able to rework how these plugins work to avoid
needing dateutil, but for now this will have to do.

2 files changed, 27 insertions, 4 deletions

diff --git a/sleekxmpp/plugins/xep_0202/__init__.py b/sleekxmpp/plugins/xep_0202/__init__.py
index 82338d3a..3fb4744d 100644
--- a/sleekxmpp/plugins/xep_0202/__init__.py
+++ b/sleekxmpp/plugins/xep_0202/__init__.py
@@ -6,6 +6,23 @@
     See the file LICENSE for copying permission.
 """
 
-from sleekxmpp.plugins.xep_0202 import stanza
-from sleekxmpp.plugins.xep_0202.stanza import EntityTime
-from sleekxmpp.plugins.xep_0202.time import xep_0202
+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")
diff --git a/sleekxmpp/plugins/xep_0202/stanza.py b/sleekxmpp/plugins/xep_0202/stanza.py
index bb27692a..72ab403d 100644
--- a/sleekxmpp/plugins/xep_0202/stanza.py
+++ b/sleekxmpp/plugins/xep_0202/stanza.py
@@ -6,12 +6,18 @@
     See the file LICENSE for copying permission.
 """
 
+import logging
 import datetime as dt
-from dateutil.tz import tzoffset, tzutc
 
 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")
+
 
 class EntityTime(ElementBase):