Ignore import errors in the tests.0.10

2 files changed, 10 insertions, 3 deletions

diff --git a/pygments/formatters/img.py b/pygments/formatters/img.py
index 96665122..0b5831b2 100644
--- a/pygments/formatters/img.py
+++ b/pygments/formatters/img.py
@@ -43,7 +43,7 @@ DEFAULT_FONT_NAME_NIX = 'Bitstream Vera Sans Mono'
 DEFAULT_FONT_NAME_WIN = 'Courier New'
 
 
-class PilNotAvailable(Exception):
+class PilNotAvailable(ImportError):
     """When Python imaging library is not available"""
 
 
diff --git a/tests/test_basic_api.py b/tests/test_basic_api.py
index 0bcbb938..ab348cbc 100644
--- a/tests/test_basic_api.py
+++ b/tests/test_basic_api.py
@@ -131,7 +131,10 @@ class FormattersTest(unittest.TestCase):
             a(info[1], "missing formatter aliases") # aliases
             a(info[3], "missing formatter docstring") # doc
 
-            inst = formatter(opt1="val1")
+            try:
+                inst = formatter(opt1="val1")
+            except ImportError:
+                continue
             inst.get_style_defs()
             inst.format(ts, out)
 
@@ -163,7 +166,11 @@ class FormattersTest(unittest.TestCase):
         # test that the formatter supports encoding and Unicode
         tokens = list(lexers.PythonLexer(encoding='utf-8').get_tokens("def f(): 'ä'"))
         for formatter, info in formatters.FORMATTERS.iteritems():
-            inst = formatter(encoding=None)
+            try:
+                inst = formatter(encoding=None)
+            except ImportError:
+                # some dependency not installed
+                continue
             out = format(tokens, inst)
             if formatter.unicodeoutput:
                 self.assert_(type(out) is unicode)