From 7d9d84662dc75b4458c8da61df50a3fed568d9c9 Mon Sep 17 00:00:00 2001
From: Malcolm Smith <smith@chaquo.com>
Date: Wed, 19 Oct 2022 13:34:15 +0100
Subject: [PATCH] Android: make Paths cache __main__ module location during
 startup

---
 src/android/toga_android/paths.py | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/src/android/toga_android/paths.py b/src/android/toga_android/paths.py
index 37ad58d97b..653f0074bc 100644
--- a/src/android/toga_android/paths.py
+++ b/src/android/toga_android/paths.py
@@ -13,18 +13,13 @@ class Paths:
     def __context(self):
         return App.app._impl.native.getApplicationContext()
 
+    def __init__(self):
+        # On Android, __main__ only exists during app startup, so cache its location now.
+        self._app = Path(sys.modules["__main__"].__file__).parent
+
     @property
     def app(self):
-        try:
-            return Path(sys.modules["__main__"].__file__).parent
-        except KeyError:
-            # If we're running in test conditions,
-            # there is no __main__ module.
-            return Path.cwd()
-        except AttributeError:
-            # If we're running at an interactive prompt,
-            # the __main__ module isn't file-based.
-            return Path.cwd()
+        return self._app
 
     @property
     def data(self):