Add pyenv check in initializations

initializations.zsh

@@ -1,6 +1,7 @@
 #!/bin/zsh
 
 if [[ "$OSTYPE" == "linux-gnu" ]]; then
+	if which pyenv > /dev/null; then
 		export PATH=/usr/local/bin:$PATH
 		export PYENV_ROOT="$HOME/.pyenv"
 		export PATH="$PYENV_ROOT/bin:$PATH"
@@ -9,6 +10,7 @@ if [[ "$OSTYPE" == "linux-gnu" ]]; then
 		eval "$(pyenv init -)"
 		eval "$(pyenv virtualenv-init -)"
 	fi
+fi
 
 if which pyenv-virtualenv-init > /dev/null; then
 	export PATH=/usr/local/bin:$PATH