1 files changed, 6 insertions, 7 deletions
diff --git a/raven/versioning.py b/raven/versioning.py
index 42f179f..8e1a262 100644
--- a/raven/versioning.py
+++ b/raven/versioning.py
@@ -2,12 +2,6 @@ from __future__ import absolute_import
 
 import os.path
 
-try:
-    import pkg_resources
-except ImportError:
-    # pkg_resource is not available on Google App Engine
-    pkg_resources = None
-
 from raven.utils.compat import text_type
 from .exceptions import InvalidGitRepository
 
@@ -68,7 +62,12 @@ def fetch_package_version(dist_name):
     """
     >>> fetch_package_version('sentry')
     """
-    if pkg_resources is None:
+    try:
+        # Importing pkg_resources can be slow, so only import it
+        # if we need it.
+        import pkg_resources
+    except ImportError:
+        # pkg_resource is not available on Google App Engine
         raise NotImplementedError('pkg_resources is not available '
                                   'on this Python install')
     dist = pkg_resources.get_distribution(dist_name)