The 2to3 tool shipped with Python 3.1 final doesn't handle correctly a
local package import (fixer fix_import). Test case:
$ find . -name '*.py'
./__init__.py
./a.py
./b/__init__.py
./b/m.py
$ 2to3 a.py
RefactoringTool: Skipping implicit fixer: buffer
RefactoringTool: Skipping implicit fixer: idioms
RefactoringTool: Skipping implicit fixer: set_literal
RefactoringTool: Skipping implicit fixer: ws_comma
RefactoringTool: No files need to be modified.
$ cat a.py
from b import m
m.q()
Trying to use the 2to3 tool from one level up won't work either:
$ 2to3 test2to3/a.py
RefactoringTool: Skipping implicit fixer: buffer
RefactoringTool: Skipping implicit fixer: idioms
RefactoringTool: Skipping implicit fixer: set_literal
RefactoringTool: Skipping implicit fixer: ws_comma
RefactoringTool: No files need to be modified.
It seems to be a bug in the fixer, which is using the os.path.pathsep
constant when it should be using the os.path.sep instead.
The probably_a_local_import function is checking if "test2to3/b:"
exists, when it should be checking against: "test2to3/b/"
Attached patch seems to be working:
$ 2to3 test2to3/a.py
RefactoringTool: Skipping implicit fixer: buffer
RefactoringTool: Skipping implicit fixer: idioms
RefactoringTool: Skipping implicit fixer: set_literal
RefactoringTool: Skipping implicit fixer: ws_comma
--- test2to3/a.py (original)
+++ test2to3/a.py (refactored)
@@ -1,5 +1,5 @@
-from b import m
+from .b import m
m.q()
RefactoringTool: Files that need to be modified:
RefactoringTool: test2to3/a.py
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