"Error: Cython version >= 3.0.0 is required. You have 0.26.1. You should look at http://www.cython.org"

[Koocy]

I have installed Cython 3.0.10 and I keep checking the version with cython --version and cython3 --version and it keeps telling me that it is indeed 3.0.10

I installed cython with pip and when it didn't work, pip3. Why does it keep telling me I have version 0.26.1?

[nikias]

Obviously you somewhere have some other cython version installed. You can try to set CYTHON environment variable to your cython binary that reports the correct version. Try which cython to get the path.

[NorthBaandee]

I also have this exact error. $which cython returns nothing

[Aceitunator]

Got the same error but managed to sort it. I did this:

sudo pip3 install cython==3.0.0

then:

cython --version

then:

make clean

./configure (if you are using a release tar ball)
./autogen.sh (if you did a git clone)

make

make install