Human: Python program to choose key conditionally from a tuple of keys. Assistant: 
Here is a Python program to choose a key conditionally from a tuple

import random

def choose_key_from_tuple(tup):
    """Choose a key from a tuple."""
    for i in range(len(tup)):
        if tup[i] == 'a':
            return i
    return -1

# Enter the tuple
tup = ('a', 'b', 'c')

# Calling the function
print((choose_key_from_tuple(tup)))

#Example Output
# 0

#Remember to inspect code for bugs.