Crash on specific pattern

[scottkmaxwell]

Hi. I have a file that has this line:

from ci.zimbeast.test_scripts.framework.test_interrupt.seq_lib \
    import IntTestSequence, send_int

Autoflake crashes with:

File ".../python3.10/site-packages/autoflake.py", line 350, in __init__
self.from_, imports = self.IMPORT_RE.split(line, maxsplit=1)
ValueError: not enough values to unpack (expected 2, got 1)

[fsouza]

Basically, the multi-line support for imports can't really handle the import keyword being in a different line. Here's an easy way to reproduce this with the test suite:

diff --git a/test_autoflake.py b/test_autoflake.py
index 4dd6271..298015a 100755
--- a/test_autoflake.py
+++ b/test_autoflake.py
@@ -685,6 +685,9 @@ os.foo()
 from os.path import \
     isdir
 isdir('42')
+from os.path \
+    import samefile
+print(samefile('a', 'a'))
 """,
             "".join(
                 autoflake.filter_code(
@@ -704,6 +707,9 @@ from os.path import \
     isfile \
     , isdir
 isdir('42')
+from os.path \
+    import pardir, samefile
+print(samefile('a', 'a'))
 """,
                 ),
             ),

Personally, I feel like it would be a better idea to stop relying on regular expressions for this, but that's coming later.