No Python 2 anymore

.ci-run-tests.sh

@@ -4,5 +4,4 @@ set -e  # exit on error
 set -x  # print command before execution
 
 cd /tmp/Normaliz/PyNormaliz
-python2 tests/runtests.py
 python3 tests/runtests.py

.github/workflows/ci.yml

@@ -16,12 +16,9 @@ jobs:
       - name: "Install prerequisites and Normaliz"
         run: |
           sudo apt-get install libgmp-dev
-          sudo apt-get install libpython2-dev
           sudo apt-get install libpython3-dev
-          # pip2 install coverage
           # pip3 install coverage
           # pip install setuptools
-          sudo apt-get install python-setuptools
           pip3 install setuptools
           ./.ci-install-normaliz.sh
       - name: "Install PyNormaliz"
@@ -42,12 +39,10 @@ jobs:
       - name: "Install prerequisites and Normaliz"
         run: |
           sudo apt-get install libgmp-dev
-          sudo apt-get install libpython2-dev
           sudo apt-get install libpython3-dev
           # pip2 install coverage
           # pip3 install coverage
           # pip install setuptools
-          sudo apt-get install python-setuptools
           pip3 install setuptools
           ./.ci-install-normaliz.sh
       - name: "Install PyNormaliz"
@@ -73,9 +68,7 @@ jobs:
           brew reinstall llvm  automake
       - name: "Install Python prerequisites"
         run: |
-          pip install coverage
           pip3 install coverage
-          pip install setuptools
           pip3 install setuptools
       - name: "Install Normaliz"
         run: |

README.md

@@ -12,10 +12,10 @@ A full documentation is conatined in [Appendix E](doc/PyNormaliz.pdf) of the Nor
 
 ## Requirements
 
-* python 2.7 or higher or python 3.4 or higher
+* python 3.4 or higher
 * Normaliz 3.9.0 or higher <https://github.com/Normaliz/Normaliz/releases>
 
-(The current version of PyNormaliz is under construction. Normaliz 3.9.0 not yet released. Use current master of Normaliz for current master of PyNormaliz.) The source packages of the Normaliz realeases contain PyNormaliz.
+The source packages of the Normaliz realeases contain PyNormaliz.
 
 ## Installation
 
@@ -33,8 +33,6 @@ The command Cone creates a cone (and a lattice), and the member functions
 of Cone compute its properties. For a full list of input and output
 properties, see the Normaliz manual.
 
-We assume that you are running python 3.
-
 Start by
 
     import PyNormaliz