From 5b2068976c0e0378c3986c1eabcb940b89a9f32d Mon Sep 17 00:00:00 2001
From: SomberNight <somber.night@protonmail.com>
Date: Fri, 7 Feb 2025 16:22:44 +0000
Subject: [PATCH] config: remove a footgun

---
 electrum/simple_config.py | 2 ++
 run_electrum              | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/electrum/simple_config.py b/electrum/simple_config.py
index c8c537071..eac34cc73 100644
--- a/electrum/simple_config.py
+++ b/electrum/simple_config.py
@@ -186,6 +186,8 @@ class SimpleConfig(Logger):
                  read_user_dir_function=None):
         if options is None:
             options = {}
+        for config_key in options:
+            assert isinstance(config_key, str), f"{config_key=!r} has type={type(config_key)}, expected str"
 
         Logger.__init__(self)
 
diff --git a/run_electrum b/run_electrum
index 5b19a53d5..8683112c1 100755
--- a/run_electrum
+++ b/run_electrum
@@ -326,7 +326,7 @@ def main():
             'cmd': 'gui',
             SimpleConfig.GUI_NAME.key(): 'qml',
             SimpleConfig.WALLET_USE_SINGLE_PASSWORD.key(): True,
-            SimpleConfig.SWAPSERVER_URL: 'https://swaps.electrum.org/api',
+            SimpleConfig.SWAPSERVER_URL.key(): 'https://swaps.electrum.org/api',
         }
         if util.get_android_package_name() == "org.electrum.testnet.electrum":
             # ~hack for easier testnet builds. pkgname subject to change.