I want to remove the whitespace between each of the variables printed and replace them with commas.
In its current state, the string then each varable with a whitespace seperating them would be printed.
For example if a = 1 and each variable was an increase of 1 then this would be printed: 1 2 3 4 5 6 7 8 9. I want it to print: 1,2,3,4,5,6,7,8,9.
How can I do this?
Thanks.
Here is the code I'm trying to change:
print("Test: ", a,b,c,d,e,f,g,h,i)
Use str.join():
print('Test:', ','.join(map(str, [a, b, c, d, e, f, g, h, i])))
The map() call makes sure all values are strings first.
Demo:
>>> a, b, c, d, e, f, g, h, i = range(1, 10)
>>> print('Test:', ','.join(map(str, [a, b, c, d, e, f, g, h, i])))
Test: 1,2,3,4,5,6,7,8,9
@Martijn's answer is the better way to do it, but just so you know this it's possible, the function print takes a keyword argument, sep, which specifies what to print between arguments between the function.
>>> print('Test:', a,b,c,d,e,f,g,h,i, sep=',')
Test:, 1,2,3,4,5,6,7,8,9
As you can see, it also prints a comma after "Test:", which is probably not what you want.
print('Test': ', end='') and then print(a,b,c,d,e,f,g,h,i,sep=',')
",".join().Joining iterables is one of the most frustrating things for newcomers to Python to learn. There is no join method for lists, for example.
The rationale is that this is a string method. It makes sense, since it returns a string.
However, a builtin join() function that takes an iterable and the string by which to join the items in it would make a lot of sense and get support from me.
The upside of Python, however, is that there are very few of these basic but counter-intuitive operations out there.
