Reflect module restucture

examples/hold_bin.py

@@ -5,23 +5,32 @@
 
 import sys, pathlib
 from binlock import BinLock
+from binlock.exceptions import BinLockExistsError
+from binlock.defaults import DEFAULT_LOCK_NAME
+
+USAGE = f"Usage: {pathlib.Path(__file__).name} path_to_bin.avb [OptionalBinLockName]"
 
 if __name__ == "__main__":
 
 	if not len(sys.argv) > 1:
-		print(f"Usage: {pathlib.Path(__file__).name} path_to_bin.avb", file=sys.stderr)
+		print(USAGE, file=sys.stderr)
 		sys.exit(1)
 
 	path_bin = pathlib.Path(sys.argv[1])
 	if not path_bin.suffix.lower() == ".avb":
 		print(f"Expecting a `.avb` file here, got {path_bin} instead", file=sys.stderr)
+		print(USAGE, file=sys.stderr)
 		sys.exit(2)
+
+	lock_name = sys.argv[2] if len(sys.argv) > 2 else DEFAULT_LOCK_NAME
 
-	with BinLock().hold_bin(path_bin) as lock:
-		input(f"Holding lock on {path_bin} as {lock.name}... (press any key)")
-
-	if BinLock().from_bin(path_bin):
-		print("Somehow unable to release bin")
+	try:
+		with BinLock(lock_name).hold_bin(path_bin) as lock:
+			input(f"Holding lock on {path_bin} as {lock.name}... (press any key)")
+
+	except BinLockExistsError as e:
+		print(f"Bin is already locked by {BinLock.from_bin(path_bin).name}")
 		sys.exit(3)
 
-	print("Lock released")
+	else:
+		print("Lock released")

tests/test_binlock.py

@@ -1,14 +1,14 @@
 import pytest
 import pathlib
-from binlock import (
-	BinLock,
+from binlock import BinLock
+from binlock.defaults import MAX_NAME_LENGTH
+from binlock.exceptions import (
 	BinLockNameError,
 	BinLockFileDecodeError,
 	BinLockExistsError,
 	BinLockOwnershipError,
 )
 
-from binlock.binlock import MAX_NAME_LENGTH
 
 # Helper to create a dummy bin file (with a .avb extension)
 def create_dummy_bin(tmp_path):