Nested for loops and print statements

[Cai Gengyang]

So what do i need to do to correct the error ?

Regards


On Monday, September 26, 2016 at 2:48:16 PM UTC+8, Terry Reedy wrote:
> On 9/26/2016 1:59 AM, Cai Gengyang wrote:
> > Why is it that you need a print() at the end to create the table for example 1:
> >
> > Example 1 ---
> >
> >>>> for row in range(10):
> >     for column in range(10):
> >         print("*",end=" ")
> >     # Print a blank line for next row
> >     print()
> 
> These indents are either 4 or 8 spaces.
> 
> The print provides a carriage return.
> Each line ends with a space.
> 
> > * * * * * * * * * *
> > * * * * * * * * * *
> > * * * * * * * * * *
> > * * * * * * * * * *
> > * * * * * * * * * *
> > * * * * * * * * * *
> > * * * * * * * * * *
> > * * * * * * * * * *
> > * * * * * * * * * *
> > * * * * * * * * * *
> 
> One can avoid both extra print and spaces with
> 
> for row in range(10):
>      for column in range(10):
>          print("*", end=" " if column<9 else '\n')
> 
> # or
> for row in range(10):
>      print(' '.join(['*']*10))
> # or
> print((' '.join(['*']*10)+'\n')*10)
> 
> # or
> for row in range(10):
>      print('* '*9 + '*')
> # or
> print(('* '*9 + '*\n')*10)
> 
> 
> > but not for Example 2 ---
> >
> > for row in range(10):
> >     print("*",end=" ")
> >
> > * * * * * * * * * *
> >
> > When I try to do example 1 without the print() statement at the end, I get this error :
> >
> > for row in range(10):
> >     for column in range(10):
> > 	print("*",end=" ")
> 
> These indents are 4 spaces and 1 tabs.
> 
> > SyntaxError: inconsistent use of tabs and spaces in indentation
> 
> Because you mixed tabs and spaces.  Has nothing to do with print statement.
> 
> 
> -- 
> Terry Jan Reedy