Are you sure you haven't installed `libarrow` (the CPP one) manually independently from pyarrow?
In your traceback you have that the symbol has not been found in "/usr/local/lib/libarrow.400.dylib" But that smells like an independently installed libarrow, as the libarrow provided by pyarrow should exist in the pytnon environment (in my case for example /usr/local/lib/python3.9/site-packages/pyarrow/libarrow.400.dylib ) I suspect your system installed libarrow is taking precedence over the one provided by pyarrow and the two might not match. On Wed, Apr 28, 2021 at 10:05 AM Ying Zhou <yzhou7...@gmail.com> wrote: > Hi, > > It turns out that I haven’t been able to use PyArrow 4.0.0 either in Conda > environments or python venvs. PyArrow does install using pip. However this > is what I get if I ever want to use it: > > >>> import pyarrow as pa > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > File > "/Users/karlkatzen/anaconda3/lib/python3.8/site-packages/pyarrow/__init__.py", > line 63, in <module> > import pyarrow.lib as _lib > ImportError: > dlopen(/Users/karlkatzen/anaconda3/lib/python3.8/site-packages/pyarrow/ > lib.cpython-38-darwin.so, 2): Symbol not found: > __ZN5arrow10StopSource5tokenEv > Referenced from: > /Users/karlkatzen/anaconda3/lib/python3.8/site-packages/pyarrow/ > lib.cpython-38-darwin.so > Expected in: /usr/local/lib/libarrow.400.dylib > in /Users/karlkatzen/anaconda3/lib/python3.8/site-packages/pyarrow/ > lib.cpython-38-darwin.so > >>> pa > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > NameError: name 'pa' is not defined > > On the other hand a Conda installation is not even possible. Does anyone > know what’s going on? > > Ying
