Type str/repr dunders (#4582)

Co-authored-by: Anderson Bravalheri <andersonbravalheri@gmail.com>

pkg_resources/__init__.py

@@ -301,7 +301,7 @@ def get_supported_platform():
 class ResolutionError(Exception):
     """Abstract base for dependency resolution errors"""
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return self.__class__.__name__ + repr(self.args)
 
 
@@ -377,7 +377,7 @@ def requirers_str(self):
     def report(self):
         return self._template.format(**locals())
 
-    def __str__(self):
+    def __str__(self) -> str:
         return self.report()
 
 
@@ -2725,15 +2725,15 @@ def __init__(
         self.extras = tuple(extras)
         self.dist = dist
 
-    def __str__(self):
+    def __str__(self) -> str:
         s = "%s = %s" % (self.name, self.module_name)
         if self.attrs:
             s += ':' + '.'.join(self.attrs)
         if self.extras:
             s += ' [%s]' % ','.join(self.extras)
         return s
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return "EntryPoint.parse(%r)" % str(self)
 
     @overload
@@ -3157,13 +3157,13 @@ def egg_name(self):
             filename += '-' + self.platform
         return filename
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         if self.location:
             return "%s (%s)" % (self, self.location)
         else:
             return str(self)
 
-    def __str__(self):
+    def __str__(self) -> str:
         try:
             version = getattr(self, 'version', None)
         except ValueError:
@@ -3508,7 +3508,7 @@ def __contains__(
     def __hash__(self):
         return self.__hash
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return "Requirement.parse(%r)" % str(self)
 
     @staticmethod

setuptools/sandbox.py

@@ -509,6 +509,6 @@ class SandboxViolation(DistutilsError):
         """
     ).lstrip()
 
-    def __str__(self):
+    def __str__(self) -> str:
         cmd, args, kwargs = self.args
         return self.tmpl.format(**locals())

setuptools/tests/test_sandbox.py

@@ -75,7 +75,7 @@ def test_unpickleable_exception(self):
         class CantPickleThis(Exception):
             "This Exception is unpickleable because it's not in globals"
 
-            def __repr__(self):
+            def __repr__(self) -> str:
                 return 'CantPickleThis%r' % (self.args,)
 
         with setuptools.sandbox.ExceptionSaver() as saved_exc:

setuptools/tests/test_wheel.py

@@ -175,7 +175,7 @@ def __init__(self, id, **kwargs):
         self._id = id
         self._fields = kwargs
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return '%s(**%r)' % (self._id, self._fields)