diff --git a/ppb/sprites.py b/ppb/sprites.py
index 03e648c7..f9b0cf8e 100644
--- a/ppb/sprites.py
+++ b/ppb/sprites.py
@@ -1,8 +1,5 @@
 from inspect import getfile
-from numbers import Number
-from os.path import realpath
 from pathlib import Path
-from typing import Dict, Iterable, Sequence
 from typing import Union
 
 from ppb import Vector
@@ -296,5 +293,9 @@ def __image__(self):
 
     def __resource_path__(self):
         if self.resource_path is None:
-            self.resource_path = Path(realpath(getfile(type(self)))).absolute().parent
+            try:
+                file_path = Path(getfile(type(self))).resolve().parent
+            except TypeError:
+                file_path = Path.cwd().resolve()
+            self.resource_path = file_path
         return self.resource_path
diff --git a/tests/test_sprites.py b/tests/test_sprites.py
index 1a264f1f..da84761f 100644
--- a/tests/test_sprites.py
+++ b/tests/test_sprites.py
@@ -1,4 +1,5 @@
 from unittest import TestCase
+from unittest.mock import patch
 
 from ppb import BaseSprite, Vector
 from ppb.sprites import Rotatable
@@ -325,3 +326,18 @@ def test_rotatable_base_sprite():
 
     test_sprite.rotate(1)
     assert test_sprite.rotation == 1
+
+
+def test_sprite_in_main():
+    """
+    Test that Sprite.__resource_path__ returns a meaningful value inside
+    REPLs where __main__ doesn't have a file.
+    """
+    class TestSprite(BaseSprite):
+        pass
+
+    s = TestSprite()
+
+    with patch("ppb.sprites.getfile", side_effect=TypeError):
+        # This patch simulates what happens when TestSprite was defined in the REPL
+        assert s.__resource_path__()  # We don't care what it is, as long as it's something