Change class representation for CaselessDict objects to always include the class name or the class' name attribute, if available. Also show subcomponents for Component objects.

CHANGES.rst

@@ -4,7 +4,12 @@ Changelog
 
 3.8 (unreleased)
 ----------------
- 
+
+- Change class representation for CaselessDict objects to always include the
+  class name or the class' name attribute, if available. Also show
+  subcomponents for Component objects.
+  [thet]
+  
 - Don't use data_encode for CaselessDict class representation but use dict's
   __repr__ method.
   [t-8ch]

src/icalendar/cal.py

@@ -12,7 +12,6 @@ from icalendar.parser import Parameters
 from icalendar.parser import q_join
 from icalendar.parser import q_split
 from icalendar.parser_tools import DEFAULT_ENCODING
-from icalendar.parser_tools import data_encode
 from icalendar.prop import TypesFactory
 from icalendar.prop import vText, vDDDLists
 
@@ -59,13 +58,13 @@ class Component(CaselessDict):
     directy, but rather one of the subclasses.
     """
 
-    name = ''        # must be defined in each component
-    required = ()    # These properties are required
-    singletons = ()  # These properties must only appear once
-    multiple = ()    # may occur more than once
-    exclusive = ()   # These properties are mutually exclusive
-    inclusive = ()   # if any occurs the other(s) MUST occur
-                     # ('duration', 'repeat')
+    name = None         # should be defined in each component
+    required = ()       # These properties are required
+    singletons = ()     # These properties must only appear once
+    multiple = ()       # may occur more than once
+    exclusive = ()      # These properties are mutually exclusive
+    inclusive = ()      # if any occurs the other(s) MUST occur
+                        # ('duration', 'repeat')
     ignore_exceptions = False   # if True, and we cannot parse this
                                 # component, we will silently ignore
                                 # it, rather than let the exception
@@ -262,7 +261,7 @@ class Component(CaselessDict):
         """Recursively traverses component and subcomponents. Returns sequence
         of same. If name is passed, only components with name will be returned.
         """
-        if not name is None:
+        if name is not None:
             name = name.upper()
         return self._walk(name)
 
@@ -368,9 +367,6 @@ class Component(CaselessDict):
                              '{st!r}'.format(**locals()))
         return comps[0]
 
-    def __repr__(self):
-        return '%s(%s)' % (self.name, data_encode(self))
-
     def content_line(self, name, value, sorted=True):
         """Returns property as content line.
         """
@@ -396,6 +392,16 @@ class Component(CaselessDict):
         content_lines = self.content_lines(sorted=sorted)
         return content_lines.to_ical()
 
+    def __repr__(self):
+        """String representation of class with all of it's subcomponents.
+        """
+        subs = ', '.join([str(it) for it in self.subcomponents])
+        return '%s(%s%s)' % (
+            self.name,
+            dict(self),
+            ', %s' % subs if subs else ''
+        )
+
 
 #######################################
 # components defined in RFC 2445

src/icalendar/caselessdict.py

@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
 from icalendar.compat import iteritems
 from icalendar.parser_tools import to_unicode
-from icalendar.parser_tools import data_encode
 
 try:
     from collections import OrderedDict
@@ -41,6 +40,9 @@ class CaselessDict(OrderedDict):
                 super(CaselessDict, self).__delitem__(key)
                 self[key_upper] = value
 
+        # If name not set, use class name instead
+        self.name = getattr(self, 'name', None) or type(self).__name__
+
     def __getitem__(self, key):
         key = to_unicode(key)
         return super(CaselessDict, self).__getitem__(key.upper())
@@ -89,7 +91,7 @@ class CaselessDict(OrderedDict):
         return type(self)(super(CaselessDict, self).copy())
 
     def __repr__(self):
-        return 'CaselessDict(%s)' % dict(self)
+        return '%s(%s)' % (self.name, dict(self))
 
     def __eq__(self, other):
         return self is other or dict(self.items()) == dict(other.items())

src/icalendar/parser.py

@@ -191,9 +191,6 @@ class Parameters(CaselessDict):
 #   def decoded(self, name):
 #       "returns a decoded value, or list of same"
 
-    def __repr__(self):
-        return 'Parameters(%s)' % data_encode(self)
-
     def to_ical(self, sorted=True):
         result = []
         items = list(self.items())

src/icalendar/tests/test_property_params.py

@@ -6,6 +6,7 @@ from icalendar import vCalAddress
 from icalendar.tests import unittest
 
 import icalendar
+import re
 
 
 class TestPropertyParams(unittest.TestCase):
@@ -205,3 +206,11 @@ END:VCALENDAR"""
         self.assertEqual(event['attendee'][0].params.to_ical(),
                          b'CN=RembrandXS;PARTSTAT=NEEDS-ACTION;RSVP=TRUE')
         self.assertEqual(event['attendee'][0].params['cn'], u'RembrandXS')
+
+    def test_repr(self):
+        """Test correct class representation.
+        """
+        it = Parameters(parameter1='Value1')
+        self.assertTrue(
+            re.match("Parameters\({u?'PARAMETER1': 'Value1'}\)", str(it))
+        )

src/icalendar/tests/test_unit_cal.py

@@ -4,6 +4,7 @@ from icalendar.tests import unittest
 
 import icalendar
 import pytz
+import re
 
 
 class TestCalComponent(unittest.TestCase):
@@ -306,6 +307,46 @@ class TestCalComponent(unittest.TestCase):
         preserved_str = component.to_ical(sorted=False).splitlines()
         assert preserved_str == component_str
 
+    def test_repr(self):
+        """Test correct class representation.
+        """
+        from icalendar.cal import Component, Calendar, Event
+
+        component = Component()
+        component['key1'] = 'value1'
+
+        self.assertTrue(
+            re.match("Component\({u?'KEY1': 'value1'}\)", str(component))
+        )
+
+        calendar = Calendar()
+        calendar['key1'] = 'value1'
+
+        self.assertTrue(
+            re.match("VCALENDAR\({u?'KEY1': 'value1'}\)", str(calendar))
+        )
+
+        event = Event()
+        event['key1'] = 'value1'
+
+        self.assertTrue(
+            re.match("VEVENT\({u?'KEY1': 'value1'}\)", str(event))
+        )
+
+        # Representation of nested Components
+        calendar.add_component(event)
+        nested = Component(key1='VALUE1', key2='VALUE2')
+        nested.add_component(component)
+        nested.add_component(calendar)
+        nested.add_component(event)
+
+        self.assertTrue(
+            re.match(
+                "Component\({u?'KEY2': 'VALUE2', u?'KEY1': 'VALUE1'}, Component\({u?'KEY1': 'value1'}\), VCALENDAR\({u?'KEY1': 'value1'}, VEVENT\({u?'KEY1': 'value1'}\)\), VEVENT\({u?'KEY1': 'value1'}\)\)",  # nopep8
+                str(nested)
+            )
+        )
+
 
 class TestCal(unittest.TestCase):