plyvel

import plyvel import os import shutil # Define a path for the LevelDB database db_path = '/tmp/testdb_plyvel_quickstart' # Clean up any previous database at the path if os.path.exists(db_path): shutil.rmtree(db_path) try: # Open a new database, creating it if it doesn't exist # Using a context manager ensures the database is properly closed with plyvel.DB(db_path, create_if_missing=True) as db: print(f"Database opened at: {db_path}") # Put key-value pairs (keys and values must be bytes) db.put(b'name', b'Alice') db.put(b'age', b'30') db.put(b'city', b'New York') # Get a value name = db.get(b'name') if name: print(f"Name: {name.decode('utf-8')}") # Iterate over all key-value pairs print("\nAll entries:") for key, value in db: print(f" {key.decode('utf-8')}: {value.decode('utf-8')}") # Delete a key db.delete(b'age') print("\nAfter deleting 'age':") # Verify deletion by iterating again for key, value in db: print(f" {key.decode('utf-8')}: {value.decode('utf-8')}") except Exception as e: print(f"An error occurred: {e}") finally: # Ensure cleanup even if an error occurs if os.path.exists(db_path): shutil.rmtree(db_path) print(f"\nCleaned up database directory: {db_path}")