Abort trap: 6 when trying to import pymc3

[aditya-sengupta]

In trying to use some Python modules, pyimport will fail and crash the REPL. This happens with pymc3 (and with some other modules, but it's fixable by rolling back to old versions of other modules.)

To reproduce: pip install pymc3==3.9.3 in the environment that PyCall uses, then run

julia> using PyCall
julia> pyimport("pymc3")
Assertion failed: (findOption(Name) == Values.size() && "Option already exists!"), function addLiteralOption, file /Users/ci/miniconda3/conda-bld/llvmdev_1601977477900/work/include/llvm/Support/CommandLine.h, line 853.

signal (6): Abort trap: 6
in expression starting at REPL[14]:1
__pthread_kill at /usr/lib/system/libsystem_kernel.dylib (unknown line)
Allocations: 38845460 (Pool: 38829395; Big: 16065); GC: 29
[1]    48491 abort      /Applications/Julia-1.5.app/Contents/Resources/julia/bin/julia