更改enroll命名,添加了注释,向get_error_msg中添加了一些错误代码

venv/Lib/site-packages/setuptools/command/egg_info.py

@@ -17,22 +17,18 @@ import warnings
 import time
 import collections
 
-from .._importlib import metadata
-from .. import _entry_points
-
 from setuptools import Command
 from setuptools.command.sdist import sdist
 from setuptools.command.sdist import walk_revctrl
 from setuptools.command.setopt import edit_config
 from setuptools.command import bdist_egg
 from pkg_resources import (
-    Requirement, safe_name, parse_version,
-    safe_version, to_filename)
+    parse_requirements, safe_name, parse_version,
+    safe_version, yield_lines, EntryPoint, iter_entry_points, to_filename)
 import setuptools.unicode_utils as unicode_utils
 from setuptools.glob import glob
 
 from setuptools.extern import packaging
-from setuptools.extern.jaraco.text import yield_lines
 from setuptools import SetuptoolsDeprecationWarning
 
 
@@ -136,21 +132,11 @@ class InfoCommon:
         in which case the version string already contains all tags.
         """
         return (
-            version if self.vtags and self._already_tagged(version)
+            version if self.vtags and version.endswith(self.vtags)
             else version + self.vtags
         )
 
-    def _already_tagged(self, version: str) -> bool:
-        # Depending on their format, tags may change with version normalization.
-        # So in addition the regular tags, we have to search for the normalized ones.
-        return version.endswith(self.vtags) or version.endswith(self._safe_tags())
-
-    def _safe_tags(self) -> str:
-        # To implement this we can rely on `safe_version` pretending to be version 0
-        # followed by tags. Then we simply discard the starting 0 (fake version number)
-        return safe_version(f"0{self.vtags}")[1:]
-
-    def tags(self) -> str:
+    def tags(self):
         version = ''
         if self.tag_build:
             version += self.tag_build
@@ -219,8 +205,12 @@ class egg_info(InfoCommon, Command):
 
         try:
             is_version = isinstance(parsed_version, packaging.version.Version)
-            spec = "%s==%s" if is_version else "%s===%s"
-            Requirement(spec % (self.egg_name, self.egg_version))
+            spec = (
+                "%s==%s" if is_version else "%s===%s"
+            )
+            list(
+                parse_requirements(spec % (self.egg_name, self.egg_version))
+            )
         except ValueError as e:
             raise distutils.errors.DistutilsOptionError(
                 "Invalid distribution name or version syntax: %s-%s" %
@@ -295,9 +285,10 @@ class egg_info(InfoCommon, Command):
     def run(self):
         self.mkpath(self.egg_info)
         os.utime(self.egg_info, None)
-        for ep in metadata.entry_points(group='egg_info.writers'):
-            self.distribution._install_dependencies(ep)
-            writer = ep.load()
+        installer = self.distribution.fetch_build_egg
+        for ep in iter_entry_points('egg_info.writers'):
+            ep.require(installer=installer)
+            writer = ep.resolve()
             writer(self, ep.name, os.path.join(self.egg_info, ep.name))
 
         # Get rid of native_libs.txt if it was put there by older bdist_egg
@@ -728,9 +719,20 @@ def write_arg(cmd, basename, filename, force=False):
 
 
 def write_entries(cmd, basename, filename):
-    eps = _entry_points.load(cmd.distribution.entry_points)
-    defn = _entry_points.render(eps)
-    cmd.write_or_delete_file('entry points', filename, defn, True)
+    ep = cmd.distribution.entry_points
+
+    if isinstance(ep, str) or ep is None:
+        data = ep
+    elif ep is not None:
+        data = []
+        for section, contents in sorted(ep.items()):
+            if not isinstance(contents, str):
+                contents = EntryPoint.parse_group(section, contents)
+                contents = '\n'.join(sorted(map(str, contents.values())))
+            data.append('[%s]\n%s\n\n' % (section, contents))
+        data = ''.join(data)
+
+    cmd.write_or_delete_file('entry points', filename, data, True)
 
 
 def get_pkg_info_revision():