Added the ``exclude_package_data`` keyword to ``setup()``, allowing you

to trim back files included via the ``package_data`` and
``include_package_data`` options.

1 files changed, 14 insertions, 14 deletions

diff --git a/setuptools/dist.py b/setuptools/dist.py
index 17c9f149..fb7df8ce 100644
--- a/setuptools/dist.py
+++ b/setuptools/dist.py
@@ -103,24 +103,24 @@ def check_test_suite(dist, attr, value):
         raise DistutilsSetupError("test_suite must be a string")
 
 
+def check_package_data(dist, attr, value):
+    """Verify that value is a dictionary of package names to glob lists"""
+    if isinstance(value,dict):
+        for k,v in value.items():
+            if not isinstance(k,str): break
+            try: iter(v)
+            except TypeError:
+                break
+        else:
+            return
+    raise DistutilsSetupError(
+        attr+" must be a dictionary mapping package names to lists of "
+        "wildcard patterns"
+    )
 
     
 
 
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 class Distribution(_Distribution):
     """Distribution with support for features, tests, and package data