String formatting in Python

Question

I want to do something like String.Format(\"[{0}, {1}, {2}]\", 1, 2, 3) which returns:

[1, 2, 3]

How do I do this in Python?

Answer 1

Since python-3.6, Python supports literal string interpolation [pep-498]. You thus can format with an f prefix to the string. For example:

x = 1
y = 2
z = 3
f'[{x}, {y}, {z}]'

This then produces:

>>> f'[{x}, {y}, {z}]'
'[1, 2, 3]'

In C# (the language of the String.Format(…)) in the question, since c#-6.0, string interpolation [microsof-tdoc] is supported as well, for example:

int x = 1;
int y = 2;
int z = 3;
string result = $"[{x}, {y}, {z}]";

For example:

csharp> int x = 1;
csharp> int y = 2;
csharp> int z = 3;
csharp> $"[{x}, {y}, {z}]";
"[1, 2, 3]"