I'm in the process of self-teaching Python, and would love to know if there's an equivalent to end="" used with print() for a return function. For instance:
def shape(num,x):
for col in reversed(range(num)):
for row in range(col+1):
print(x,end="")
print()
Gives me the result I want, but how would I use a return function to provide me with the same results?
Are you asking how to return a string? Here is one way, following the same form you used:
def shape(num,x):
result = ''
for col in reversed(range(num)):
for row in range(col+1):
result += x
result += '\n'
return result
print (shape(4, '*'), end="")
Using += on strings is bad form, however. As you continue to improve your code, check out list comprehensions and the str.join() function.
You might end up with something like this:
return '\n'.join('*'*(col+1) for col in reversed(range(num)))
Print the return value:
def shape(num):
x = 0
for col in reversed(range(num)):
for row in range(col+1):
x += row
return x
print(shape(82))
Another way you could do this is using a generator function:
def shape(num, x):
for col in reversed(range(num)):
yield x * (col + 1)
for line in shape(4, '*'):
print(line)
Note: the generator function does basically the same thing as the generator expresion Robᵩ has shown(inside the '\n'.join()), but it's worth knowing how to create a generator function for more complicated cases.
