update Shared

Shared/lib/python3.4/site-packages/setuptools/dist.py

@@ -15,8 +15,12 @@ from distutils.errors import (DistutilsOptionError, DistutilsPlatformError,
 
 from setuptools.depends import Require
 from setuptools.compat import basestring, PY2
+from setuptools import windows_support
 import pkg_resources
 
+packaging = pkg_resources.packaging
+
+
 def _get_unpatched(cls):
     """Protect against re-patching the distutils if reloaded
 
@@ -111,24 +115,26 @@ def check_extras(dist, attr, value):
 def assert_bool(dist, attr, value):
     """Verify that value is True, False, 0, or 1"""
     if bool(value) != value:
-        raise DistutilsSetupError(
-            "%r must be a boolean value (got %r)" % (attr,value)
-        )
+        tmpl = "{attr!r} must be a boolean value (got {value!r})"
+        raise DistutilsSetupError(tmpl.format(attr=attr, value=value))
+
+
 def check_requirements(dist, attr, value):
     """Verify that install_requires is a valid requirements list"""
     try:
         list(pkg_resources.parse_requirements(value))
-    except (TypeError,ValueError):
-        raise DistutilsSetupError(
-            "%r must be a string or list of strings "
-            "containing valid project/version requirement specifiers" % (attr,)
+    except (TypeError, ValueError) as error:
+        tmpl = (
+            "{attr!r} must be a string or list of strings "
+            "containing valid project/version requirement specifiers; {error}"
         )
+        raise DistutilsSetupError(tmpl.format(attr=attr, error=error))
+
 def check_entry_points(dist, attr, value):
     """Verify that entry_points map is parseable"""
     try:
         pkg_resources.EntryPoint.parse_map(value)
-    except ValueError:
-        e = sys.exc_info()[1]
+    except ValueError as e:
         raise DistutilsSetupError(e)
 
 def check_test_suite(dist, attr, value):
@@ -268,6 +274,26 @@ class Distribution(_Distribution):
             # Some people apparently take "version number" too literally :)
             self.metadata.version = str(self.metadata.version)
 
+        if self.metadata.version is not None:
+            try:
+                ver = packaging.version.Version(self.metadata.version)
+                normalized_version = str(ver)
+                if self.metadata.version != normalized_version:
+                    warnings.warn(
+                        "Normalizing '%s' to '%s'" % (
+                            self.metadata.version,
+                            normalized_version,
+                        )
+                    )
+                    self.metadata.version = normalized_version
+            except (packaging.version.InvalidVersion, TypeError):
+                warnings.warn(
+                    "The version specified (%r) is an invalid version, this "
+                    "may not work as expected with newer versions of "
+                    "setuptools, pip, and PyPI. Please see PEP 440 for more "
+                    "details." % self.metadata.version
+                )
+
     def parse_command_line(self):
         """Process features after parsing command line options"""
         result = _Distribution.parse_command_line(self)
@@ -305,6 +331,21 @@ class Distribution(_Distribution):
         else:
             self.convert_2to3_doctests = []
 
+    def get_egg_cache_dir(self):
+        egg_cache_dir = os.path.join(os.curdir, '.eggs')
+        if not os.path.exists(egg_cache_dir):
+            os.mkdir(egg_cache_dir)
+            windows_support.hide_file(egg_cache_dir)
+            readme_txt_filename = os.path.join(egg_cache_dir, 'README.txt')
+            with open(readme_txt_filename, 'w') as f:
+                f.write('This directory contains eggs that were downloaded '
+                        'by setuptools to build, test, and run plug-ins.\n\n')
+                f.write('This directory caches those eggs to prevent '
+                        'repeated downloads.\n\n')
+                f.write('However, it is safe to delete this directory.\n\n')
+
+        return egg_cache_dir
+
     def fetch_build_egg(self, req):
         """Fetch an egg needed for building"""
 
@@ -328,8 +369,9 @@ class Distribution(_Distribution):
                 if 'find_links' in opts:
                     links = opts['find_links'][1].split() + links
                 opts['find_links'] = ('setup', links)
+            install_dir = self.get_egg_cache_dir()
             cmd = easy_install(
-                dist, args=["x"], install_dir=os.curdir, exclude_scripts=True,
+                dist, args=["x"], install_dir=install_dir, exclude_scripts=True,
                 always_copy=False, build_directory=None, editable=False,
                 upgrade=False, multi_version=True, no_report=True, user=False
             )
@@ -393,7 +435,8 @@ class Distribution(_Distribution):
     def print_commands(self):
         for ep in pkg_resources.iter_entry_points('distutils.commands'):
             if ep.name not in self.cmdclass:
-                cmdclass = ep.load(False) # don't require extras, we're not running
+                # don't require extras as the commands won't be invoked
+                cmdclass = ep.resolve()
                 self.cmdclass[ep.name] = cmdclass
         return _Distribution.print_commands(self)