Merge template loader refactoring

setuptools/command/easy_install.py

@@ -732,23 +732,25 @@ Please make the appropriate changes for your system and try again.
         spec = str(dist.as_requirement())
         is_script = is_python_script(script_text, script_name)
 
-        def get_template(filename):
+        if is_script:
+            script_text = (get_script_header(script_text) +
+                self._load_template(dev_path) % locals())
+        self.write_script(script_name, _to_ascii(script_text), 'b')
+
+    @staticmethod
+    def _load_template(dev_path):
         """
         There are a couple of template scripts in the package. This
         function loads one of them and prepares it for use.
         """
-            raw_bytes = resource_string('setuptools', template_name)
-            return raw_bytes.decode('utf-8')
-
-        if is_script:
         # See https://bitbucket.org/pypa/setuptools/issue/134 for info
         #  on script file naming and downstream issues with SVR4
-            template_name = 'script.tmpl'
+        name = 'script.tmpl'
         if dev_path:
-                template_name = template_name.replace('.tmpl', ' (dev).tmpl')
-            script_text = (get_script_header(script_text) +
-                get_template(template_name) % locals())
-        self.write_script(script_name, _to_ascii(script_text), 'b')
+            name = name.replace('.tmpl', ' (dev).tmpl')
+
+        raw_bytes = resource_string('setuptools', name)
+        return raw_bytes.decode('utf-8')
 
     def write_script(self, script_name, contents, mode="t", blockers=()):
         """Write an executable file to the scripts directory"""