I dont understand simple nested loops

[hhhhhh]

for num in range(10):
for i in range(num):
print (num, end=" ") #print number
# new line after each row to display pattern correctly
print("\n")

i dont understand this at all. Can someone explain this for dummies
Cheers

 

[John Joe]

Have you tried running the code? What's the output?

 

[hhhhhh]

a pyramid out of numbers. Ive tried to get my head around this simple for loop logic but it takes me a long time to actually understand whats going on