9 ms·

It’s unclear what the big advantage is over `print("Age: "+age)`. It’s even more characters, in that specific example.

• kstrauser 2mo ago
  If age is a number, that won’t work.
  • layer8 2mo ago
    Admittedly I’m not so familiar with Python; it does work in Java. In that case, introducing a less hazardous string concatenation operator would seem more universally useful.
    • kstrauser 2mo ago
      In Python, that less hazardous string concatenation operator is an f-string.
      • layer8 2mo ago
        I’m assuming you can only use it with string literals, hence it is less universally useful.
        • TZubiri 2mo ago
          Nope, you can put expressions in them: f'{a} = {functionThatReturnsAButHasSideEffects()}'
• mixmastamyk 2mo ago
  Toy examples aren’t the use case, rather multiple variables or expressions, perhaps with formatting (padding) as well. f-string is shorter, less err prone, and faster for medium complexity or above.
• deleted 2mo ago
  [deleted]
• andai 2mo ago
  >>> age = 32 >>> print("Age: " + age) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: can only concatenate str (not "int") to str >>> print("Age: " + str(age)) Age: 32 As a side note, I always found it amusing that Python is dynamic but doesn't let you do this, while C# has static typing but lets you do string + number. (I looked into it a while back, I think it's because both are Object, so it does operator overloading on Object+Object and then checks the types...)