Class webDiff

• self._notEq
• self._notEqContent
• self._eq
• self._eqContent

This function is the callback function called from os.path.walk, from the python
help function:

walk(top, func, arg)
        Directory tree walk with callback function.

        For each directory in the directory tree rooted at top (including top
        itself, but excluding '.' and '..'), call func(arg, dirname, fnames).
        dirname is the name of the directory, and fnames a list of the names of
        the files and subdirectories in dirname (excluding '.' and '..').  func
        may modify the fnames list in-place (e.g. via del or slice assignment),
        and walk will only recurse into the subdirectories whose names remain in
        fnames; this can be used to implement a filter, or to impose a specific
        order of visiting.  No semantics are defined for, or required of, arg,
        beyond that arg is always passed to func.  It can be used, e.g., to pass
        a filename pattern, or a mutable object designed to accumulate
        statistics.  Passing None for arg is common.

Verifies if the requested URL permits a HEAD request. This was saved inside the KB by the plugin allowedMethods