[Python] Referencing an Empty Schema causes a SegFault

[asfimport]

Creating an empty schema and calling it will cause a segfault. Seems similar to the same issue with Table().

>>> import pyarrow as pa
>>> bb = pa.Schema()
>>> bb
Segmentation fault: 11

Environment: MacOS 10.12.6
Python 2.7.13
Reporter: Andrew Gross
Assignee: Phillip Cloud / @cpcloud

PRs and other links:

• GitHub Pull Request #1096

_{Note: This issue was originally created as ARROW-1532. Please see the migration documentation for further details.}

[asfimport]

Wes McKinney / @wesm:
These uses aren't supported, but we should not segfault

[asfimport]

Wes McKinney / @wesm:
@cpcloud if you want to fix this quickly I can hold off on the RC

[asfimport]

Phillip Cloud / @cpcloud:
Yep, fix coming up shortly.

[asfimport]

Wes McKinney / @wesm:
Issue resolved by pull request 1096
#1096