On Fri, Mar 1, 2013 at 11:55 AM, 김용빈 wrote:

why we bother with '{variable}'.format(variable=variable) ? can we just '{variable}.format()' ?

if variable is exist, then assign it. if variable is not exist, then raise error

I am not language expert. so sorry if this is not a good idea, or already discussed.

Explicit is better than implicit. There are also security issues with automatically making all local variables available to a format string, where that format string might come from an untrusted source. If you want the behavior you suggest, you can use '{variable}'.format(**locals()) unless you don't intend to include global variables. I don't recall the behavior of locals() with regard to non-global variables from enclosing scopes. Dustin

On Fri, Mar 1, 2013 at 11:55 AM, 김용빈 wrote:

why we bother with '{variable}'.format(variable=variable) ? can we just '{variable}.format()' ?

variable = "Hello, World!" print('{variable}'.format_map(locals()))

if variable is exist, then assign it. if variable is not exist, then raise error

I am not language expert. so sorry if this is not a good idea, or already discussed.

As Dustin said, Explicit is Better Than Implicit; you don't want a variable to accidentally make your string formatting work by luck because you forgot to pass in an argument you meant to but just so happened to have a variable with the "right" name.