Why is ::= used as assignment operator in doc statements?

[schaffe@gmail.com]

Why is statments expressed with ::= as the assigning operator?
like: http://docs.python.org/ref/grammar.txt

br

[Méta-MCI \(MVP\)]

Re: Why is ::= used as assignment operator in doc statements?

Bonjour !

it's a grammar description language, not python language.

@-salutations

Michel Claveau

[Ben Finney]

Re: Why is ::= used as assignment operator in doc statements?

schaffe@gmail.c om writes:

Why is statments expressed with ::= as the assigning operator?
like: http://docs.python.org/ref/grammar.txt

That page is part of the language reference. It shows, not Python
code, but a description of part of the Python grammar. See §1.2
<URL:http://www.python.org/doc/ref/notation.html>.

--
\ “A man must consider what a rich realm he abdicates when he |
`\ becomes a conformist.” —Ralph Waldo Emerson |
_o__) |
Ben Finney

[Colin J. Williams]

Re: Why is ::= used as assignment operator in doc statements?

Ben Finney wrote:

schaffe@gmail.c om writes:
>

>Why is statments expressed with ::= as the assigning operator?
>like: http://docs.python.org/ref/grammar.txt

>
That page is part of the language reference. It shows, not Python
code, but a description of part of the Python grammar. See §1.2
<URL:http://www.python.org/doc/ref/notation.html>.
>

Of historic interest is Extended
Bachus-Naur Normal Form (EBNF):

http://en.wikipedia.org/wiki/Extended_Backus%E2%80%93Naur_form

Colin W.