Dots between module names in from .. import x statement

[lieryan]

Describe the bug

Context: found during discussion of #538

You can add spaces between the dots of import statement, this is valid Python code:

from xml . etree import cElementTree
from . . . pkg . mod import something

But because ast normalises the module name when parsing, node.module == "xml.etree" the current sorted_children would require there being no whitespaces between the module names and dots; so rope currently would error out on above code.

To Reproduce
Steps to reproduce the behavior:

1. Code before refactoring:

from xml . etree import cElementTree
from . . . pkg . mod import something

2. Use one of the refactoring that uses patchedast, like extract code

3. Refactoring should be successful instead of currently producing error like

pylsp: error: pylsp-rope: Token <..> at (1, 4) cannot be matched

Editor information (please complete the following information):

• Project Python version: 3.10
• Rope Python version: 3.10
• Rope version: 1.5.1