Will a 'do-while' loop work if we do not put a colon at the end of the line?

The do-while loop does not exist in Python. Python uses while and for loops.

An equivalent of do-while can be simulated with an infinite loop while True and a break statement:

# Simulating do-while
while True:
    # Loop body
    print("Loop body executes")
    condition = False  # Your exit condition
    if not condition:
        break  # Exit loop when condition is met

Or with initialization before the loop:

# Alternative simulation of do-while
condition = True  # Initialize condition for first run
while condition:
    # Loop body
    print("Loop body executes")
    condition = False  # Re-evaluate condition

In both cases, the colon at the end of while True: or while condition: is mandatory, as in any Python code block (if, for, def, class, etc.), to denote the start of the block. Omitting it causes a syntax error.