using non-existent label for click() still submits the form (including FIX)

[cvogt]

No control with label 'asdfasdfasdf' exists. Mechanize still submits the form.

browser.forms().next().click(label='asdfasdfasdf')

The following seems to fix the issueVersion 0.2.0. In _form.py, line 3190 add to the condition:

or (label is not None)

With this fix the above clock() call raises

ControlNotFoundError: no control matching kind 'clickable', label 'asdfasdfasdf'

[cvogt]

Workaround for people who stumble over this bug. Execute at the beginning of your code:

import mechanize
from mechanize import _request
from mechanize._form import ControlNotFoundError
def _click(self, name, type, id, label, nr, coord, return_type,
           request_class=_request.Request):
    try:
        control = self._find_control(
            name, type, "clickable", id, label, None, nr)
    except ControlNotFoundError:
        if ((name is not None) or (type is not None) or (id is not None) or
            (nr != 0) or (label is not None)): # fixed by cvogt, see http://github.com/jjlee/mechanize/issues/16
            raise
        # no clickable controls, but no control was explicitly requested,
        # so return state without clicking any control
        return self._switch_click(return_type, request_class)
    else:
        return control._click(self, coord, return_type, request_class)
mechanize._form.HTMLForm._click = _click

[jjlee]

Fix failure to raise on click for nonexistent label

Closed by 28b77f5

[cvogt]

that was quick, thanks so much!