Crash with relative import in from statement

[rublag]

Bug description

File test.py

# pylint: disable=missing-module-docstring
from .a import b

It seems like this commit introduced the bug:
0f8212f#diff-7d982c7ee8d920542a08ef8e7a73fddf8929599d2c13507a7b3b6bf2a4371b6fR112

Command used

pylint test.py

Pylint output

Exception on node <ImportFrom l.2 at 0x7f1be7effbb0> in file '/tmp/plt/test.py'
Traceback (most recent call last):
  File "/home/rublag/projects/ecom/server/.venv/bin/pylint", line 8, in <module>
    sys.exit(run_pylint())
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/__init__.py", line 24, in run_pylint
    PylintRun(sys.argv[1:])
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/lint/run.py", line 384, in __init__
    linter.check(args)
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/lint/pylinter.py", line 975, in check
    self._check_files(
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/lint/pylinter.py", line 1009, in _check_files
    self._check_file(get_ast, check_astroid_module, name, filepath, modname)
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/lint/pylinter.py", line 1035, in _check_file
    check_astroid_module(ast_node)
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/lint/pylinter.py", line 1172, in check_astroid_module
    retval = self._check_astroid_module(
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/lint/pylinter.py", line 1217, in _check_astroid_module
    walker.walk(ast_node)
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/utils/ast_walker.py", line 77, in walk
    self.walk(child)
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/utils/ast_walker.py", line 74, in walk
    callback(astroid)
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/checkers/deprecated.py", line 112, in visit_importfrom
    basename = get_import_name(node, basename)
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/pylint/checkers/utils.py", line 1552, in get_import_name
    modname = root.relative_to_absolute_name(
  File "/home/rublag/projects/ecom/server/.venv/lib/python3.9/site-packages/astroid/scoped_nodes.py", line 725, in relative_to_absolute_name
    raise TooManyLevelsError(level=level, name=self.name)
astroid.exceptions.TooManyLevelsError: Relative import with too many levels (1) for module 'test'

Expected behavior

No crash

Pylint version

pylint 2.9.5
astroid 2.6.5
Python 3.9.6 (default, Jun 30 2021, 10:22:16) 
[GCC 11.1.0]

[yangkenneth]

Running into the same issue, last working version was 2.9.3 on my end.