Error installing pyunicorn

[arjunChaudharyUnimelb]

Hi Guys,

I am trying to install pyunicorn package on Windows 10 to generate Recurrence Plot. However, I am facing issues. I have followed some of the online thread to install Cython package which has solved some issues but I am still unable to install the package.

After running "pip3 install pyunicorn". There is a bunch of errors however, when I searched for term "error". I can see following error:

pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(196): error C2057: expected constant expression
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(196): error C2466: cannot allocate an array of constant size 0
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(196): error C2133: 'rankedi': unknown size
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(197): error C2057: expected constant expression
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(197): error C2466: cannot allocate an array of constant size 0
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(197): error C2133: 'rankedj': unknown size
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(198): error C2057: expected constant expression
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(198): error C2466: cannot allocate an array of constant size 0
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(198): error C2133: 'normalizedi': unknown size
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(199): error C2057: expected constant expression
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(199): error C2466: cannot allocate an array of constant size 0
pip-install-4smwgquo\pyunicorn_b945c392248f4c0990844cdab31f5d77\pyunicorn\climate\_ext\src_numerics.c(199): error C2133: 'normalizedj': unknown size

Once this doesn't work. I tried to install it from github

conda create -n pyunicorn python=3.7
conda activate pyunicorn
pip install numpy scipy igraph
pip install git+https://github.com/pik-copan/pyunicorn

But this also fails. Stating following:

Failed to build pyunicorn
ERROR: Could not build wheels for pyunicorn, which is required to install pyproject.toml-based projects

Going through logs I can see follwoing specific error:

Creating library build\temp.win-amd64-cpython-37\Release\src/pyunicorn/core/_ext\numerics.cp37-win_amd64.lib and object build\temp.win-amd64-cpython-37\Release\src/pyunicorn/core/_ext\numerics.cp37-win_amd64.exp
      numerics.obj : error LNK2001: unresolved external symbol drand48
      numerics.obj : error LNK2001: unresolved external symbol srand48

[zivgogogo]

maybe you should try pip3 install Cython

[ntfrgl]

I am closing this issue, since it is a duplicate of #160 with the same error messages and the same causes.

@arjunChaudharyUnimelb, could you please retry with the most recent master branch, and report back in the referenced issue? Thank you!