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-rw-r--r--Lib/distutils/command/build.py14
1 files changed, 9 insertions, 5 deletions
diff --git a/Lib/distutils/command/build.py b/Lib/distutils/command/build.py
index 187dddc..b74e51c 100644
--- a/Lib/distutils/command/build.py
+++ b/Lib/distutils/command/build.py
@@ -40,10 +40,14 @@ class Build (Command):
# For now, "build" means "build_py" then "build_ext". (Eventually
# it should also build documentation.)
- # Invoke the 'build_py' command
- self.run_peer ('build_py')
-
- # And now 'build_ext'
- self.run_peer ('build_ext')
+ # Invoke the 'build_py' command to "build" pure Python modules
+ # (ie. copy 'em into the build tree)
+ if self.distribution.packages or self.distribution.py_modules:
+ self.run_peer ('build_py')
+
+ # And now 'build_ext' -- compile extension modules and put them
+ # into the build tree
+ if self.distribution.ext_modules:
+ self.run_peer ('build_ext')
# end class Build