ARROW-2734: [Python] Cython api example doesn't work by default on macOS
ARROW-2734: [Python] Cython api example doesn't work by default on macOS

Author: Krisztián Szűcs <szucs.krisztian@gmail.com>

Closes #2488 from kszucs/ARROW-2734 and squashes the following commits:

0d65b936 <Krisztián Szűcs> fix cython example in pyarrow documentation

pcmoritz/arrow,kou/arrow,itaiin/arrow,pcmoritz/arrow,icexelloss/arrow,apache/arrow,apache/arrow,renesugar/arrow,tebeka/arrow,itaiin/arrow,majetideepak/arrow,apache/arrow,kou/arrow,majetideepak/arrow,laurentgo/arrow,cpcloud/arrow,xhochy/arrow,itaiin/arrow,pcmoritz/arrow,majetideepak/arrow,apache/arrow,renesugar/arrow,itaiin/arrow,pcmoritz/arrow,itaiin/arrow,itaiin/arrow,majetideepak/arrow,kou/arrow,laurentgo/arrow,apache/arrow,apache/arrow,laurentgo/arrow,cpcloud/arrow,itaiin/arrow,icexelloss/arrow,cpcloud/arrow,kou/arrow,xhochy/arrow,renesugar/arrow,icexelloss/arrow,majetideepak/arrow,renesugar/arrow,xhochy/arrow,xhochy/arrow,apache/arrow,kou/arrow,tebeka/arrow,itaiin/arrow,renesugar/arrow,renesugar/arrow,itaiin/arrow,icexelloss/arrow,icexelloss/arrow,xhochy/arrow,pcmoritz/arrow,renesugar/arrow,icexelloss/arrow,wesm/arrow,wesm/arrow,apache/arrow,itaiin/arrow,xhochy/arrow,tebeka/arrow,kou/arrow,renesugar/arrow,pcmoritz/arrow,renesugar/arrow,kou/arrow,cpcloud/arrow,tebeka/arrow,majetideepak/arrow,apache/arrow,xhochy/arrow,laurentgo/arrow,tebeka/arrow,majetideepak/arrow,pcmoritz/arrow,apache/arrow,icexelloss/arrow,icexelloss/arrow,laurentgo/arrow,kou/arrow,xhochy/arrow,majetideepak/arrow,cpcloud/arrow,icexelloss/arrow,xhochy/arrow,xhochy/arrow,xhochy/arrow,majetideepak/arrow,xhochy/arrow,kou/arrow,laurentgo/arrow,kou/arrow,xhochy/arrow,tebeka/arrow,pcmoritz/arrow,apache/arrow,cpcloud/arrow,kou/arrow,tebeka/arrow,icexelloss/arrow,renesugar/arrow,renesugar/arrow,cpcloud/arrow,renesugar/arrow,wesm/arrow,majetideepak/arrow,laurentgo/arrow,majetideepak/arrow,apache/arrow,cpcloud/arrow,pcmoritz/arrow,renesugar/arrow,majetideepak/arrow,cpcloud/arrow,pcmoritz/arrow,majetideepak/arrow,xhochy/arrow,tebeka/arrow,itaiin/arrow,majetideepak/arrow,itaiin/arrow,itaiin/arrow,icexelloss/arrow,laurentgo/arrow,wesm/arrow,tebeka/arrow,kou/arrow,cpcloud/arrow,laurentgo/arrow,pcmoritz/arrow,renesugar/arrow,apache/arrow,wesm/arrow,laurentgo/arrow,kou/arrow,laurentgo/arrow,wesm/arrow,tebeka/arrow,laurentgo/arrow,wesm/arrow,itaiin/arrow,xhochy/arrow,kou/arrow,pcmoritz/arrow,laurentgo/arrow,cpcloud/arrow,cpcloud/arrow,wesm/arrow,wesm/arrow,cpcloud/arrow,icexelloss/arrow,wesm/arrow,cpcloud/arrow,pcmoritz/arrow,renesugar/arrow,wesm/arrow,laurentgo/arrow,wesm/arrow,apache/arrow,wesm/arrow,wesm/arrow,majetideepak/arrow,pcmoritz/arrow,icexelloss/arrow,pcmoritz/arrow,icexelloss/arrow,laurentgo/arrow,itaiin/arrow