import sys
import sqlite3
import pandas as pd

def load_sqlite_to_dataframe(db_path, query):
    try:
        conn = sqlite3.connect(db_path)

        df = pd.read_sql_query(query, conn)
        return df
    except sqlite3.Error as excpt:
        print(f"SQLite error: {excpt}")
        raise
    except Exception as e:
        print(f"Error: {excpt}")
        raise
    finally:
        if 'conn' in locals():
            conn.close()

if __name__ == "__main__":
    df1 = load_sqlite_to_dataframe(sys.argv[1], table_name='md_1min_bars')

    print(df1)