Fix python version in first-setup script

.python-version

@@ -1 +1 @@
-3.5.3
+3.9.11

README.md

@@ -14,6 +14,7 @@ Be lazier today!
 ## Local setup
 
 There is a special script to get started with the project. Just run it in the root of the project.
+Note: this script might require you to install a certain python version, you can do this using your favorite tool e.g. [pyenv](https://github.com/pyenv/pyenv#simple-python-version-management-pyenv)
 
 	./first-setup.sh
 

first-setup.sh

@@ -10,8 +10,10 @@ B="\n${bold}"
 E="${normal}"
 
 if [ ! -d "venv" ]; then
-	echo -e "${B} No venv found, creating a new one ${E}"
-	python3 -m venv venv
+	PYTHON_VERSION=$(cat .python-version)
+	echo -e "${B} No venv found, creating a new one with version ${PYTHON_VERSION} ${E}"
+	pip install virtualenv
+	virtualenv -p $PYTHON_VERSION venv
 fi
 source venv/bin/activate