I need to print a Christmas tree that looks like this:

  /\  /  \
/    \

Here is my code so far:

for count in range (0,20):variable1 = count-20variable2 = count*2print('{0:{width1}}{1:{width2}}' .format('/','\\', width1=variable1 , width2=variable2))

I am using Python 3.5. And the coding says Sign not allowded in sstring format specifier

import builtins
builtins.unicode = str
print ('                  ',chr(0x2605))
for count in range (20):print ('{0:>{width1}}{1:>{width2}}' .format('/','\\', width1 = 20-count , width2 = 2*count+1))
print ('-----------------------------------------'
print ('                 [      ]                ')
print ('                 [      ]                ')
print ('                 [      ]                ')
print ('                 [      ]                ')
print ('                 [      ]                ')
print ('-----------------------------------------')

Thank You for the People that helped me FINISH!