Index out of range error in autoflake.fix_code

[gabe-sherman]

When the following program is provided with a specially crafted input, this leads to an index out of range error in the extract_package_name function at line 264 in autoflake.py. This seems to stem from incorrect handling of a carriage return character in the input text(\r).

import autoflake

autoflake.fix_code("import t\rs\nimport test\nimport0")

Setup Info

Version: 2.31
Commit: b87ff10

Trace Report

Traceback (most recent call last):
  File "rep.py", line 3, in <module>
    autoflake.fix_code("import t\rs\nimport test\nimport0")
  File "python3.10/site-packages/autoflake.py", line 924, in fix_code
    "".join(
  File "python3.10/site-packages/autoflake.py", line 622, in filter_code
    result = filter_unused_import(
  File "python3.10/site-packages/autoflake.py", line 699, in filter_unused_import
    package = extract_package_name(line)
  File "python3.10/site-packages/autoflake.py", line 264, in extract_package_name
    word = line.split()[1]
IndexError: list index out of range

[fsouza]

That 's not valid Python code, but we should handle the edge case better.