Handle unspecified config paths (fixes #1027)

sebastinas · sebastinas · commit a283365bfdf2 · 2025-09-26T17:22:09.000+02:00
diff --git a/bpython/config.py b/bpython/config.py
@@ -207,13 +207,14 @@ class Config:
         },
     }
 
-    def __init__(self, config_path: Path) -> None:
+    def __init__(self, config_path: Path | None = None) -> None:
         """Loads .ini configuration file and stores its values."""
 
         config = ConfigParser()
         fill_config_with_default_values(config, self.defaults)
         try:
-            config.read(config_path)
+            if config_path is not None:
+                config.read(config_path)
         except UnicodeDecodeError as e:
             sys.stderr.write(
                 "Error: Unable to parse config file at '{}' due to an "
@@ -243,7 +244,9 @@ def get_key_no_doublebind(command: str) -> str:
 
             return requested_key
 
-        self.config_path = Path(config_path).absolute()
+        self.config_path = (
+            config_path.absolute() if config_path is not None else None
+        )
         self.hist_file = Path(config.get("general", "hist_file")).expanduser()
 
         self.dedent_after = config.getint("general", "dedent_after")
diff --git a/bpython/repl.py b/bpython/repl.py
@@ -1216,6 +1216,10 @@ def open_in_external_editor(self, filename):
         return subprocess.call(args) == 0
 
     def edit_config(self):
+        if self.config.config_path is None:
+            self.interact.notify(_("No config file specified."))
+            return
+
         if not self.config.config_path.is_file():
             if self.interact.confirm(
                 _("Config file does not exist - create new from default? (y/N)")
