CLABE Component Extraction

def parse_clabe(clabe):
    """Parse CLABE into its components"""
    
    if not validate_clabe(clabe):
        raise ValueError("Invalid CLABE format")
    
    return {
        'bank_code': clabe[:3],
        'branch_code': clabe[3:6],
        'account_number': clabe[6:17],
        'check_digit': clabe[17],
        'full_clabe': clabe
    }

# Example usage
clabe_parts = parse_clabe("012345678901234567")
print(f"Bank: {clabe_parts['bank_code']}")
print(f"Branch: {clabe_parts['branch_code']}")
print(f"Account: {clabe_parts['account_number']}")
print(f"Check Digit: {clabe_parts['check_digit']}")

from datetime import datetime
import pytz

def is_spei_operating_time(timestamp=None):
    """Check if SPEI is currently operating"""
    
    if timestamp is None:
        timestamp = datetime.now()
    
    # Convert to Mexico City timezone
    mexico_tz = pytz.timezone('America/Mexico_City')
    if timestamp.tzinfo is None:
        timestamp = pytz.utc.localize(timestamp)
    
    mexico_time = timestamp.astimezone(mexico_tz)
    
    # Check day of week (0 = Monday, 6 = Sunday)
    weekday = mexico_time.weekday()
    hour = mexico_time.hour
    
    if weekday < 5:  # Monday to Friday
        return 6 <= hour < 18
    elif weekday == 5:  # Saturday
        return 9 <= hour < 14
    else:  # Sunday
        return False

# Example usage
now = datetime.now(pytz.UTC)
is_operating = is_spei_operating_time(now)
print(f"SPEI is {'operating' if is_operating else 'not operating'} right now")