Format in python by variable length

Question

I want to print a staircase-like pattern. I tried this using .format() method:

for i in range(6, 0, -1):
    print("{0:>"+str(i)+"}".format("#"))

But it gave me following error:

ValueError: Single '}' encountered in format string

Basically the idea is to print this output:

     #
    #
   #
  #
 #
#

Answer 1

Currently your code interpreted as below:

for i in range(6, 0, -1):
    print ( ("{0:>"+str(i))     +     ("}".format("#")))

So the format string is constructed of a single "}" and that's not correct. You need the following:

for i in range(6, 0, -1):
    print(("{0:>"+str(i)+"}").format("#"))

Works as you want:

================ RESTART: C:/Users/Desktop/TES.py ================
     #
    #
   #
  #
 #
#
>>>