Re: [ESPResSo-users] Installation problem

[Jean-Noël Grad]

Hi Shawn,

The 4.0.2 release is tested for both python versions. I'm not familiar 
with this error message. It could be due to your Cython version, or to 
an unclean build directory. To reproduce your issue, we will need the 
cmake command you used for this build and its output in the terminal. 
It's only 80 lines long and contains valuable information such as the 
Cython version and espresso dependencies. If you're using a custom 
myconfig.hpp file, please also post its content.

Best regards,
JN

On 7/15/19 6:58 PM, Shawn wrote:
> Hi everyone,
> I am trying install espresso 4.0.2 with python 3. The cmake command 
> could be executed successfully, but when I tried to compile the source 
> code, I got errors below:
>
> [ 61%] Generating code_info.pyx
> Fatal Python error: Py_Initialize: can't initialize sys standard streams
> Traceback (most recent call last):
>    File 
> "/home/shawn/sourcecode/espresso/src/python/espressomd/io/__init__.py", 
> line 17, in <module>
>    File 
> "/home/shawn/sourcecode/espresso/src/python/espressomd/io/writer/__init__.py", 
> line 17, in <module>
> ValueError: attempted relative import beyond top-level package
> /bin/sh: line 1: 15371 Aborted                 (core dumped) 
> /home/shawn/soft/python3/bin/python3 gen_code_info.py 
> /home/shawn/sourcecode/espresso/src/features.def 
> /home/shawn/sourcecode/espresso/build4/src/python/espressomd/code_info.pyx
> make[2]: *** [src/python/espressomd/code_info.pyx] Error 134
> make[1]: *** [src/python/espressomd/CMakeFiles/code_info.dir/all] Error 2
> make: *** [all] Error 2
>
> It's so confusing, because I can successfully install espresso with 
> python 2 on the same computer and I can also install espresso with 
> python 3 on another computer.
>
> Does anyone know how to fix this? Thank you very much.
>
> Regards,
> Shawn