Issue #16537: Check whether self.extensions is empty in setup.py.

Patch by Jonathan Hosmer.

diff --git a/Misc/ACKS b/Misc/ACKS
index ccfc18ed0e025d8640db31a54117f1e80d5786ec..c86acd949285c8389d25bb854b961b3a327d3ca8 100644 (file)
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -582,6 +582,7 @@ Randall Hopper
 Nadav Horesh
 Alon Horev
 Jan Hosang
+Jonathan Hosmer
 Alan Hourihane
 Ken Howard
 Brad Howes

diff --git a/Misc/NEWS b/Misc/NEWS
index 2ad73fdf81d5f0d2f5bb6076d2224af477fb480a..b50f45d21497a3dc3dc6b0c9b74f1d0bd6289abe 100644 (file)
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -205,6 +205,9 @@ Tests
 Build
 -----
 
+- Issue #16537: Check whether self.extensions is empty in setup.py. Patch by
+  Jonathan Hosmer.
+
 - The documentation Makefile no longer automatically downloads Sphinx. Users are
   now required to have Sphinx already installed to build the documentation.
 

diff --git a/setup.py b/setup.py
index a46bf35eb434fb081d4dade9afa11e5100915209..7868b7b241ccac8b6057eab02bc56bef01c8786b 100644 (file)
--- a/setup.py
+++ b/setup.py
@@ -250,7 +250,9 @@ class PyBuildExt(build_ext):
 
         build_ext.build_extensions(self)
 
-        longest = max([len(e.name) for e in self.extensions])
+        longest = 0
+        if self.extensions:
+            longest = max([len(e.name) for e in self.extensions])
         if self.failed:
             longest = max(longest, max([len(name) for name in self.failed]))