sudo pip install Theano=="0.8.0"
sudo pip install lasagne

lasagne成功了但是没反应，不能识别
于是
稳定版

pip install -r https://raw.githubusercontent.com/Lasagne/Lasagne/v0.1/requirements.txt
pip install Lasagne==0.1

开发版

git clone https://github.com/Lasagne/Lasagne.git
cd Lasagne
pip install -r requirements.txt
pip install --editable

成功了。