Stop using testtools.helpers.try_import

It's only barely more complex to just write out the `try`/`except`
directly.

2 files changed, 11 insertions, 10 deletions

diff --git a/fixtures/callmany.py b/fixtures/callmany.py
index 39b23ef..b1785b4 100644
--- a/fixtures/callmany.py
+++ b/fixtures/callmany.py
@@ -19,14 +19,12 @@ __all__ = [
 
 import sys
 
-from testtools.helpers import try_import
 
-
-class MultipleExceptions(Exception):
-    """Report multiple exc_info tuples in self.args."""
-
-MultipleExceptions = try_import(
-    "testtools.MultipleExceptions", MultipleExceptions)
+try:
+    from testtools import MultipleExceptions
+except ImportError:
+    class MultipleExceptions(Exception):
+        """Report multiple exc_info tuples in self.args."""
 
 
 class CallMany(object):
diff --git a/fixtures/fixture.py b/fixtures/fixture.py
index cdfdc76..e0ad4c7 100644
--- a/fixtures/fixture.py
+++ b/fixtures/fixture.py
@@ -25,15 +25,18 @@ __all__ = [
 import itertools
 import sys
 
-from testtools.helpers import try_import
-
 from fixtures.callmany import (
     CallMany,
     # Deprecated, imported for compatibility.
     MultipleExceptions,
     )
 
-gather_details = try_import("testtools.testcase.gather_details")
+
+try:
+    from testtools.testcase import gather_details
+except ImportError:
+    gather_details = None
+
 
 # This would be better in testtools (or a common library)
 def combine_details(source_details, target_details):