fix: check pyenv

install.sh

@@ -4,8 +4,7 @@ MP="`dirname \"$0\"`"           # relative
 MP="`( cd \"$MP\" && pwd )`"    # absolutized and normalized
 cd $MP
 
-if [[ ! $(which python) ]]; then
-	if [[ ! $(which pyenv) ]]; then
+if [[ ! $(which pyenv) ]]; then
 		echo "pyenv installation..."
 		curl -L https://raw.githubusercontent.com/yyuu/pyenv-installer/master/bin/pyenv-installer | bash
 		echo "export PYENV_ROOT=\"$HOME/.pyenv\"" >> $HOME/.bashrc
@@ -13,8 +12,9 @@ if [[ ! $(which python) ]]; then
 		echo "eval \"$(pyenv init -)\"" >> $HOME/.bashrc
 		echo "Restat terminal and relaunch this install script"
 		exit 0
-	fi
+fi
 
+if [[ ! $(which python) ]]; then
 	pyenv install 3.9.6
 	pyenv global 3.9.6
         echo "Restat terminal and relaunch this install script again"