Get rid of old env script

Signed-off-by: Severin Kaderli <severin@kaderli.dev>

system/.config/python/startup.py

@@ -1,20 +1,30 @@
-import atexit
 import os
+import atexit
 import readline
+from pathlib import Path
 
-XDG_DATA_HOME = os.environ["XDG_DATA_HOME"]
+if readline.get_current_history_length() == 0:
+    state_home = os.environ.get("XDG_STATE_HOME")
+    if state_home is None:
+        state_home = Path.home() / ".local" / "state"
+    else:
+        state_home = Path(state_home)
 
-if not XDG_DATA_HOME:
-    histfile = os.path.join(os.path.expanduser(
-        "~"), ".local", "share", "python", "history")
-else:
-    histfile = os.path.join(XDG_DATA_HOME, "python", "history")
+    history_path = state_home / "python_history"
+    if history_path.is_dir():
+        raise OSError(f"'{history_path}' cannot be a directory")
 
-try:
-    readline.set_auto_history(False)
-    readline.read_history_file(histfile)
-    readline.set_history_length(1000)
-except FileNotFoundError:
-    pass
+    history = str(history_path)
 
-atexit.register(readline.write_history_file, histfile)
+    try:
+        readline.read_history_file(history)
+    except OSError: # Non existent
+        pass
+
+    def write_history():
+        try:
+            readline.write_history_file(history)
+        except OSError:
+            pass
+
+    atexit.register(write_history)