From bbe8b50eccb5700c44bf793346dd09540bff97ee Mon Sep 17 00:00:00 2001
From: "Jason R. Coombs" <jaraco@jaraco.com>
Date: Sat, 26 Feb 2022 12:48:11 -0500
Subject: Extract method to validate optimize parameter.

---
 setuptools/command/easy_install.py | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

(limited to 'setuptools/command')

diff --git a/setuptools/command/easy_install.py b/setuptools/command/easy_install.py
index 07b45e59..abf25eb9 100644
--- a/setuptools/command/easy_install.py
+++ b/setuptools/command/easy_install.py
@@ -355,15 +355,7 @@ class easy_install(Command):
         if not self.no_find_links:
             self.package_index.add_find_links(self.find_links)
         self.set_undefined_options('install_lib', ('optimize', 'optimize'))
-        if not isinstance(self.optimize, int):
-            try:
-                self.optimize = int(self.optimize)
-                if self.optimize not in range(3):
-                    raise ValueError
-            except ValueError as e:
-                raise DistutilsOptionError(
-                    "--optimize must be 0, 1, or 2"
-                ) from e
+        self.optimize = self._validate_optimize(self.optimize)
 
         if self.editable and not self.build_directory:
             raise DistutilsArgError(
@@ -375,6 +367,22 @@ class easy_install(Command):
 
         self.outputs = []
 
+    @staticmethod
+    def _validate_optimize(value):
+        if isinstance(value, int):
+            return value
+
+        try:
+            value = int(value)
+            if value not in range(3):
+                raise ValueError
+        except ValueError as e:
+            raise DistutilsOptionError(
+                "--optimize must be 0, 1, or 2"
+            ) from e
+
+        return value
+
     def _fix_install_dir_for_user_site(self):
         """
         Fix the install_dir if "--user" was used.
-- 
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