Parsing bytestrings and token values

[createyourpersonalaccount]

I tried using the calculator example with use_bytes=True but it wouldn't parse a NUMBER:

ValueError: could not convert string to float: Token('NUMBER', b'1')

I had to modify

lark/examples/calc.py

Line 46 in f68e353

number = float

to:

    number = lambda _, token = float(token.value)

even though Token.value specifies that it is redundant to write token.value because it's always equal to token.

Using Lark 1.2.2.

[createyourpersonalaccount]

Also, for a chance to educate myself, why does number = float work when these are class methods? (Shouldn't the first argument be self?)

[erezsh]

Re your question, "float" is actually a class, so it doesn't get bound to the class. You can replicate this behavior like this:

class B:
    def __new__(cls):
        return "foo"

class A:
    b = B

>>> A().b()
'foo'