[Pyparsing] White space

[cathal c. <cof...@gm...>]

Hello,

I have a quick question. Shouldn't the below grammar accept the given string?

from pyparsing import Word, alphas
g = "$" + "as" + Word(alphas)
g.parseString('$ as abc')
ParseException: Expected "$as" (at char 0), (line:1, col:1)

I want the grammar to accept $ followed by: any number of spaces
followed by: as followed by: any number of spaces followed by: any
string of characters.

The reason I am confused is that the following grammar accepts
regardless of white space... why doesn't the above?

g = "as" + Word(alphas)
g.parseString('  as abc    ')
Out: (['as', 'abc'], {})

Kind regards,
Cathal