kszucs commented on a change in pull request #9285:
URL: https://github.com/apache/arrow/pull/9285#discussion_r592725973
##########
File path: python/requirements-wheel-test.txt
##########
@@ -1,10 +1,11 @@
cffi
cython
hypothesis
-numpy==1.19.4
-pandas<1.1.0; python_version < "3.8"
-pandas; python_version >= "3.8"
-pickle5; (python_version == "3.6" or python_version == "3.7") and sys_platform
!= 'win32'
+numpy==1.19.4; python_version != "3.9" or platform_machine != "aarch64"
+numpy==1.20.1; python_version == "3.9" and platform_machine == "aarch64"
Review comment:
@xhochy despite that the build stage uses the same numpy versions, I'm
getting `the` binary incompatibility error: `numpy.ndarray size changed, may
indicate binary incompatibility. Expected 88 from C header, got 80 from
PyObject`, but just on py39.
You may know the root cause of it, see the build log at
https://travis-ci.com/github/ursacomputing/crossbow/builds/219762923#L3832
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