Michael J. Fromberger wrote: > I'm not sure whether this is a bug, or a feature that I do not fully > understand. I would therefore appreciate some advice, if you have any, > on the following problem: > > I have just installed Python 2.5 (release) under MacOS 10.4.7 ("Tiger"). > Unfortunately, the unit test "test_unicodefile.py" (in Lib/tests/) > exhibits a warning when invoked, as shown here: > > [Lib/test] % python2.5 test_unicode_file.py > test_directories (__main__.TestUnicodeFiles) ... ok > test_unicode_file.py:103: UnicodeWarning: Unicode equal comparison > failed to convert both arguments to Unicode - interpreting them as being > unequal > filename1==filename2 > test_equivalent_files (__main__.TestUnicodeFiles) ... ok > test_single_files (__main__.TestUnicodeFiles) ... ok > > ---------------------------------------------------------------------- > Ran 3 tests in 0.252s > > As you can see, the unit tests appear to pass, but I suspect there is a > hidden problem, as a subsequent build of the latest version of > BeautifulSoup now fails its unit tests, citing the same warning. I > can't tell whether this is a problem with the way BeautifulSoup is doing > things, or whether there is a more general problem with Unicode support > in the MacOS build of Python 2.5. > > For reference, I have done a framework build of Python, and it seems to > work fine for everything else I have tried. Do you have any idea what > might be causing this trouble? I'd be grateful for your insights.
This Problem is not Mac-specific. Should u"ö" == "ö" evaluate to True, or False, or should it raise an exception? I would favor always raising an exception, but the current behavior is the result of an extensive discussion on python-dev (that I did not follow completely) -- google for "unicode hell" and "dicts are broken". My personal conclusion is not to mix unicode and non-ascii str. I hope I'm safe then... Peter -- http://mail.python.org/mailman/listinfo/python-list