Dear all,
    I removed my previous anaconda by rm ~/anaconda. Then I reinstalled the 
anaconda3 and packages (Pyarrow included). But I still got the errors:
anaconda3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so:
 undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev

    
    Thanks in advance !

Best regards

Xiaoni

> Le 7 janv. 2020 à 16:04, Uwe L. Korn <[email protected]> a écrit :
> 
> Hello Xiaoni,
> 
> it seems that you have a conda environment and also installed pyarrow with 
> conda before. Mixing pip and conda installs of pyarrow is not going to work. 
> Please recreate your conda environment and install pyarrow from conda forge 
> using "conda config --add channels conda-forge && conda install pyarrow".
> 
> Cheers
> Uwe
> 
> On Tue, Jan 7, 2020, at 3:15 PM, xxwang wrote:
>> Dear all,
>>      I tried to installed Pyarrow (within python 3.7), by using pip install 
>> pyarrow. The installation seems OK. But when I do «  import pyarrow», then 
>> there is an error as below. I do not understand why ….. If you could give 
>> some help, I will greatly appreciate !
>> 
>> Best regards
>> Xiaoni
>> 
>> .conda/envs/python3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so:
>>  undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev

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