问题
I am using Theano. The OS is Ubuntu. The Theano is UPTODATE. I am wondering why I am getting by from theano.tensor.signal.downsample import max_pool_2d command.
ImportError: No module named downsample.
回答1:
The downsample module has been moved to pool, so try declaring it as:
from theano.tensor.signal.pool import pool_2d
After changing delete your theano cache with the command:
theano-cache purge
回答2:
update theano and lasagne
pip install --upgrade https://github.com/Theano/Theano/archive/master.zip
pip install --upgrade https://github.com/Lasagne/Lasagne/archive/master.zip
Lasagne vs Theano possible version mismatch (Windows)
回答3:
Try to update the Theano using this link.
pip install --upgrade https://github.com/Lasagne/Lasagne/archive/master.zip
回答4:
Same issue [theano v.0.9.0dev1.dev-2...]; changed
from theano.tensor.signal import downsample
pooled_out = downsample.max_pool_2d( ... )
to
from theano.tensor.signal import pool
pooled_out = pool.pool_2d( ... )
in /lib/python2.7/site-packages/lasagne/layers/pool.py
来源：https://stackoverflow.com/questions/39501152/importerror-no-module-named-downsample