[ARROW-2305] [Python] Cython 0.25.2 compilation failure

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.10.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/18258
• Assignee: Antoine Pitrou
• Reporter: Wes McKinney
• Created: 13/Mar/18 20:50
• Updated: 11/Jan/23 07:20
• Resolved: 09/Apr/18 15:46

Description

Observed on master branch

Error compiling Cython file:
------------------------------------------------------------
...
        if hasattr(self, 'as_py'):
            return repr(self.as_py())
        else:
            return super(Scalar, self).__repr__()

    def __eq__(self, other):
   ^
------------------------------------------------------------

/home/wesm/code/arrow/python/pyarrow/scalar.pxi:67:4: Special method __eq__ must be implemented via __richcmp__

Error compiling Cython file:
------------------------------------------------------------
...
        Return true if the tensors contains exactly equal data
        """
        self._validate()
        return self.tp.Equals(deref(other.tp))

    def __eq__(self, other):
   ^
------------------------------------------------------------

/home/wesm/code/arrow/python/pyarrow/array.pxi:571:4: Special method __eq__ must be implemented via __richcmp__

Error compiling Cython file:
------------------------------------------------------------
...
        cdef c_bool result = False
        with nogil:
            result = self.buffer.get().Equals(deref(other.buffer.get()))
        return result

    def __eq__(self, other):
   ^
------------------------------------------------------------

/home/wesm/code/arrow/python/pyarrow/io.pxi:675:4: Special method __eq__ must be implemented via __richcmp__

Upgrading Cython made this go away. We should probably use _richcmp_ though

Issue Links

• links to: GitHub Pull Request #1863