Problems to install

[LuisPSMachado]

I am using Ubuntu 16.04 LTS and I wasn't able to install PyGran.

I am using the following command:
pip install pygran pygran[extras] pygran[analysis] pygran[sim]

The outcome is the following:

Collecting pygran
Using cached https://files.pythonhosted.org/packages/2c/ee/41befa0979a32ccb9330d7dea64344f8e8beb7f8b7dce0be9ae2030e3809/pygran-1.4.0.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "", line 1, in
File "/tmp/pip-build-a4koWO/pygran/setup.py", line 97
sys.stdout.write(f"\r{prefix} {percents}% {suffix}")
^
SyntaxError: invalid syntax

----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-a4koWO/pygran/

Could you help me?

[anabiman]

Make sure you're using a recent version of python 3.X.