Installing Odoo on Mac raises gevent error

Question

I'm following this tutorial to install Odoo 15 on Mac, but I'm getting this error when running pip install -r requirements.txt:

      Error compiling Cython file:
      ------------------------------------------------------------
      ...
      cdef load_traceback
      cdef Waiter
      cdef wait
      cdef iwait
      cdef reraise
      cpdef GEVENT_CONFIG
            ^
      ------------------------------------------------------------
      
      src/gevent/_gevent_cgreenlet.pxd:181:6: Variables cannot be declared with 'cpdef'. Use 'cdef' instead.

I have found several documents addressing cython errors, but none addressing the specific exception I'm getting.

Answer 1

this solved it for me:

pip install pip setuptools wheel Cython==3.0.0a10
pip install gevent==20.9.0 --no-build-isolation

if some problem with psycopg2 occurs, run this: (you can change 2.8.6 to 2.8.5 depending on what you need)

export LDFLAGS="-L/opt/homebrew/opt/[email protected]/lib -L/opt/homebrew/opt/libpq/lib"
export CPPFLAGS="-I/opt/homebrew/opt/[email protected]/include -I/opt/homebrew/opt/libpq/include"

pip3 install psycopg2==2.8.6

you might also need

brew install libpq --build-from-source                                                                                      brew install openssl

export LDFLAGS="-L/opt/homebrew/opt/[email protected]/lib -L/opt/homebrew/opt/libpq/lib"
export CPPFLAGS="-I/opt/homebrew/opt/[email protected]/include -I/opt/homebrew/opt/libpq/include"

and if reportlab raises an installation error, try this:

CFLAGS="-Wno-error=implicit-function-declaration" pip install reportlab==3.5.55