A visual representation: populating python3 dicts with RNG through list elimination

visual-dict_from_random_reduction.py

import os
import random
import time as Time

"""an efficiency visualisation: indexing dict keys and randomly choosing
	one to change its value until all are changed
	-removes key from index after value change: no collisions
	-100 dict key value pairs"""

def main():
 
	full_index = []  # dict key index list
	number_grid = {}  # empty dict
	
	# create dict with key name and default value. append key to index
	for i in range(0, 100):
		number_grid[i] = " "
		full_index.append(i)
		
	draw_grid(number_grid)  # draw first visual grid with empty values
	
	added = 0  # counter: increment after a key value change
	count = 0  # counter: increment after every loop iteration
	
	# main loop: stop when index is empty
	while len(full_index):
		count += 1
		Time.sleep(0.025)  # slow down loop for easier visuals
		os.system("clear")  # clear screen
		tmp = random.choice(full_index)  # choose a random value from key index list
		number_grid[tmp] = "x"  # change value of dict key
		added += 1 
		full_index.remove(tmp)  # remove the key from index list
		draw_grid(number_grid)  # print updated values to screen
		
		# value info
		print("Added Numbers: {}/100\nCount: {}\nIndex Left: {}".format(added, count, len(full_index)))
	
	# loop ended
	input("\n- Ended -")
	return 1
	
def draw_grid(grid):
	c = 0  # counter: starting position for current format row 
	
	# console print loop
	# complete: 10 rows of 10 columns
	for i in range(0, 10):
	
		#  tidy single digit formatting on first line
		# print 2 rows of 10 items each iteration. 1st row: dict keys. 2nd: dict values
		if c == 0: 
			print("{}  {}  {}  {}  {}  {}  {}  {}  {}  {}".format(*tuple(i for i in range(c, (c+10)))))
		else:
			print("{} {} {} {} {} {} {} {} {} {}".format(*tuple(i for i in range(c, (c+10)))))
		
		print("{}  {}  {}  {}  {}  {}  {}  {}  {}  {} \n".format(*tuple(grid[i] for i in range(c, (c+10)))))
		c += 10  # iterate for next 10 items in dict
	return
		

if __name__ == "__main__":
	main()