Values refering missing interpolation options can now be repr'd. Issue 9.

2 files changed, 17 insertions, 4 deletions

diff --git a/configobj.py b/configobj.py
index 3827cee..7e3adee 100644
--- a/configobj.py
+++ b/configobj.py
@@ -753,7 +753,12 @@ class Section(dict):
 
     def __repr__(self):
         """x.__repr__() <==> repr(x)"""
-        return '{%s}' % ', '.join([('%s: %s' % (repr(key), repr(self[key])))
+        def _getval(key):
+            try:
+                return self[key]
+            except MissingInterpolationOption:
+                return dict.__getitem__(self, key)
+        return '{%s}' % ', '.join([('%s: %s' % (repr(key), repr(_getval(key))))
             for key in (self.scalars + self.sections)])
 
     __str__ = __repr__
@@ -1367,8 +1372,13 @@ class ConfigObj(Section):
         
         
     def __repr__(self):
+        def _getval(key):
+            try:
+                return self[key]
+            except MissingInterpolationOption:
+                return dict.__getitem__(self, key)
         return ('ConfigObj({%s})' % 
-                ', '.join([('%s: %s' % (repr(key), repr(self[key]))) 
+                ', '.join([('%s: %s' % (repr(key), repr(_getval(key)))) 
                 for key in (self.scalars + self.sections)]))
     
     
diff --git a/functionaltests/test_configobj.py b/functionaltests/test_configobj.py
index 8528028..31e63d9 100644
--- a/functionaltests/test_configobj.py
+++ b/functionaltests/test_configobj.py
@@ -76,13 +76,16 @@ item1 = 1234
     item2 = '$item1'""".splitlines()
         c = ConfigObj(cfg, interpolation='Template')
         
-        # This raises an exception in 4.7.1 and earlier
+        # This raises an exception in 4.7.1 and earlier due to the section
+        # being found as the interpolation value
         repr(c)
     
     def test_interoplation_repr(self):
         c = ConfigObj(['foo = $bar'], interpolation='Template')
+        c['baz'] = {}
+        c['baz']['spam'] = '%(bar)s'
         
-        # This raises an exception in 4.7.1 and earlier
+        # This raises a MissingInterpolationOption exception in 4.7.1 and earlier
         repr(c)