Theano support GPU is not working on google Colab

I'm trying to train a model based on the Theano library. As my computer havn't enough memory to train this model, I need to do it in Google Colab. But I can't activate the GPU support of Theano.

This is how I installed 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

And here is the way that I try to acctivate the GPU support

import os
os.environ["THEANO_FLAGS"] = "mode=FAST_RUN,device=cuda,floatX=float32"
import theano
print(theano.config.__getattribute__('device'))

ERROR (theano.gpuarray): pygpu was configured but could not be imported or is too old (version 0.7 or higher required)
NoneType: None

cuda

I tried to upgrade pygpu using anaconda but anaconda is not installed in Google Collab.

Thanks in advence for your help.

1. Install condacolab package:

!pip install -q condacolab

import condacolab
condacolab.install()

2. After auto restarting kernel do importing condacolab:

import condacolab
condacolab.check()

3. Install theano and pygpu packages:

!mamba install -y theano pygpu

4. Configurate and import theano:

import os
os.environ["THEANO_FLAGS"] = "device=cuda,floatX=float32"

import theano
print(theano.config.__getattribute__('device'))

To test Theano with GPU use the code from Theano docs.