Issue 1:
After installing the latest release with pip (support for 10.8.5 seems to be declared in the filename: numpy-1.16.1-cp37-cp37m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl), numpy fails with the following error:

3.7.0 (default, Jul 15 2018, 23:10:01)
[Clang 5.1 (clang-503.0.40)]
Traceback (most recent call last):
File "<stdin>", line 5, in <module>
File "/Users/username/Library/Python/3.7/lib/python/site-packages/matplotlib/__init__.py", line 141, in <module>
from . import cbook, rcsetup
File "/Users/username/Library/Python/3.7/lib/python/site-packages/matplotlib/cbook/__init__.py", line 33, in <module>
import numpy as np
File "/Users/username/Library/Python/3.7/lib/python/site-packages/numpy/__init__.py", line 148, in <module>
from . import fft
File "/Users/username/Library/Python/3.7/lib/python/site-packages/numpy/fft/__init__.py", line 6, in <module>
from .fftpack import *
File "/Users/username/Library/Python/3.7/lib/python/site-packages/numpy/fft/fftpack.py", line 44, in <module>
from . import fftpack_lite as fftpack
ImportError: dlopen(/Users/username/Library/Python/3.7/lib/python/site-packages/numpy/fft/fftpack_lite.cpython-37m-darwin.so, 2): Symbol not found: ___sincos_stret
Referenced from: /Users/username/Library/Python/3.7/lib/python/site-packages/numpy/fft/fftpack_lite.cpython-37m-darwin.so
Expected in: /usr/lib/libSystem.B.dylib
in /Users/username/Library/Python/3.7/lib/python/site-packages/numpy/fft/fftpack_lite.cpython-37m-darwin.so

Issue 2:
On MacOS 10.6 importing latest numpy results in this error:

>>> import numpy
Traceback (most recent call last):
File "/Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/core/__init__.py", line 16, in <module>
from . import multiarray
File "/Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/core/multiarray.py", line 12, in <module>
from . import overrides
File "/Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/core/overrides.py", line 6, in <module>
from numpy.core._multiarray_umath import (
ImportError: dlopen(/Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/core/_multiarray_umath.cpython-37m-darwin.so, 2): Symbol not found: __tlv_bootstrap
Referenced from: /Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/core/../.dylibs/libopenblasp-r0.3.5.dev.dylib
Expected in: /usr/lib/libSystem.B.dylib
in /Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/core/../.dylibs/libopenblasp-r0.3.5.dev.dylib

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/__init__.py", line 142, in <module>
from . import core
File "/Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/core/__init__.py", line 47, in <module>
raise ImportError(msg)
ImportError:

IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!

Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
Here is how to proceed:
- If you're working with a numpy git repository, try `git clean -xdf`
(removes all files not under version control) and rebuild numpy.
- If you are simply trying to use the numpy version that you have installed:
your installation is broken - please reinstall numpy.
- If you have already reinstalled and that did not fix the problem, then:
1. Check that you are using the Python you expect (you're using /Library/Frameworks/Python.framework/Versions/3.7/bin/python3),
and that you have no directories in your PATH or PYTHONPATH that can
interfere with the Python and numpy versions you're trying to use.
2. If (1) looks fine, you can open a new issue at
https://github.com/numpy/numpy/issues. Please include details on:
- how you installed Python
- how you installed numpy
- your operating system
- whether or not you have multiple versions of Python installed
- if you built from source, your compiler versions and ideally a build log

Note: this error has many possible causes, so please don't comment on
an existing issue about this - open a new one instead.

Original error was: dlopen(/Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/core/_multiarray_umath.cpython-37m-darwin.so, 2): Symbol not found: __tlv_bootstrap
Referenced from: /Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/core/../.dylibs/libopenblasp-r0.3.5.dev.dylib
Expected in: /usr/lib/libSystem.B.dylib
in /Users/artcs/Library/Python/3.7/lib/python/site-packages/numpy/core/../.dylibs/libopenblasp-r0.3.5.dev.dylib

This happens with Python 2.7.15 as well as 3.7.1.

A websearch for __tlv_bootstrap shows this seems to be an error related to libs compiled with llvm on MacOS 10.7 which causes them to no longer work on 10.6.

The wheel installed via pip install --user numpy implies compatibility with 10.6 however and installation works fine. Only it cannot be used. Can this be fixed or if not can someone point me to the latest working version for SL?