* Fixed ``AttributeError`` when trying to download a ``setup_requires``

  dependency when a distribution lacks a ``dependency_links`` setting.

* Made ``zip-safe`` and ``not-zip-safe`` flag files contain a single byte,
  so as to play better with packaging tools that complain about zero-length
  files.

* Made ``setup.py develop`` respect the ``--no-deps`` option, which it
  previously was ignoring.

(bug fixes backported from trunk)

--HG--
branch : setuptools-0.6
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/branches/setuptools-0.6%4050659

setuptools.txt

@@ -2563,6 +2563,17 @@ XXX
 Release Notes/Change History
 ----------------------------
 
+0.6c1
+ * Fixed ``AttributeError`` when trying to download a ``setup_requires``
+   dependency when a distribution lacks a ``dependency_links`` setting.
+
+ * Made ``zip-safe`` and ``not-zip-safe`` flag files contain a single byte, so
+   as to play better with packaging tools that complain about zero-length
+   files.
+
+ * Made ``setup.py develop`` respect the ``--no-deps`` option, which it
+   previously was ignoring.
+
 0.6b4
  * Fix ``register`` not obeying name/version set by ``egg_info`` command, if
    ``egg_info`` wasn't explicitly run first on the same command line.

setuptools/command/bdist_egg.py

@@ -360,7 +360,7 @@ def write_safety_flag(egg_dir, safe):
             if safe is None or bool(safe)<>flag:
                 os.unlink(fn)
         elif safe is not None and bool(safe)==flag:
-            open(fn,'w').close()
+            f=open(fn,'wb'); f.write('\n'); f.close()
 
 safety_flags = {
     True: 'zip-safe',

setuptools/command/develop.py

@@ -78,7 +78,7 @@ class develop(easy_install):
 
         # postprocess the installed distro, fixing up .pth, installing scripts,
         # and handling requirements
-        self.process_distribution(None, self.dist)
+        self.process_distribution(None, self.dist, not self.no_deps)
 
     def uninstall_link(self):
         if os.path.exists(self.egg_link):

setuptools/dist.py

@@ -212,8 +212,8 @@ class Distribution(_Distribution):
         self.dist_files = []
         self.patch_missing_pkg_info(attrs)
         # Make sure we have any eggs needed to interpret 'attrs'
-        if attrs and 'dependency_links' in attrs:
-            self.dependency_links = attrs.pop('dependency_links')
+        if attrs is not None:
+            self.dependency_links = attrs.pop('dependency_links', [])
             assert_string_list(self,'dependency_links',self.dependency_links)
         if attrs and 'setup_requires' in attrs:
             self.fetch_build_eggs(attrs.pop('setup_requires'))