How to install Theano in Python

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by gayathrimohan dot icon Updated: Sep 27, 2023

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Theano is a numerical computation library in Python. It optimizes and performs mathematical operations. This is especially true on large multidimensional arrays. It's particularly useful for deep learning and other machine-learning tasks.

It can be a valuable tool for data scientists due to its key capabilities:  

  • Symbolic Mathematics: Theano allows you to define mathematical operations. That means you can create mathematical expressions without actually computing them. This is particularly useful for defining complex neural network architectures.  
  • Efficient Computation: Efficient Computation is great for big number crunching. It optimizes and compiles symbolic expressions into a fast GPU. This leads to faster execution of machine learning algorithms.  
  • Deep Learning: Theano was one of the early libraries that popularized deep learning. This provides the basics for making and training neural networks. It comes before newer deep learning frameworks. Those frameworks are like TensorFlow and PyTorch.  
  • Automatic Differentiation: Theano can compute gradients of mathematical expressions. Simplifying the process of gradient-based optimization for ML models accomplishes this.  
  • Integration with NumPy: It integrates with NumPy. It is a fundamental library for numerical operations in Python. Data scientists can use familiar NumPy syntax while benefiting from Theano's optimizations.  
  • GPU Acceleration: Theano can harness the power of GPUs. That accelerates training deep learning models by parallelizing computations.  
  • Research and Experimentation: Data scientists can use Theano to prototype. It can also experiment with new machine-learning algorithms and models.   

Theano can process various types of data, including: 

  • Numeric Data: Theano can handle various numbers, such as whole and decimals. People use those for mathematical computations, linear algebra, and numerical optimization.  
  • Matrices and Tensors: It optimizes the working with multidimensional arrays. It is often referred to as tensors.   
  • Symbolic Variables: Theano allows you to define symbolic variables and perform symbolic computations. This is particularly useful in symbolic mathematics, calculus, and defining complex mathematical expressions.  
  • Images: Theano can process images as multidimensional arrays. Computer vision tasks rely on it, like identifying objects and creating images. Tensors with dimensions represent images. We use it for height, width, color channels, and batch size.  
  • Time Series Data: It can handle time series data. It is often represented as sequences of numeric values. This is useful for tasks. They include time series forecasting, natural language processing, and speech recognition.  
  • Graph Data: We intend the design for numerical computations. It can process graph data by representing graphs as adjacency matrices. This is common in graph neural networks (GNNs) and network analysis.  
  • Audio Data: Theano can process audio data, such as sound waves. We convert them into numerical representations. Then, work with these arrays for tasks like speech recognition or audio generation.  
  • Text Data: It is not designed for text processing. You can use it in conjunction with other libraries like TensorFlow or PyTorch. When building natural language processing models, people use those to handle text data.   

Theano was a popular Python library for deep learning. However, developers now prefer newer libraries such as TensorFlow and PyTorch. But I can still give you an overview of the operations that Theano could perform.   

It as concepts are fundamental to deep learning:  

  • Matrix Operations: Theano excelled at performing various matrix operations. These are essential for neural networks.   
  • Symbolic Computations: We knew that Theano could perform symbolic computations. It allowed you to define mathematical operations before actually computing them.   
  • Automatic Differentiation: Theano provided automatic differentiation, which is crucial for training neural networks.   
  • Convolutional Neural Networks (CNNs): Involves sliding filters over input data to extract features.  
  • Recurrent Neural Networks (RNNs): We use RNNs for sequential data tasks.  
  • Custom Operations: Users could define custom operations and compute gradients.   
  • GPU Acceleration: The developers designed Theano to work with GPUs for GPU acceleration.   
  • Shared Variables: Theano introduced the concept of shared variables. This allows us to efficient memory management and sharing of data.   

In Conclusion, Theano was an important library for deep learning and numerical computations. But more popular frameworks like TensorFlow and PyTorch have surpassed it. TensorFlow and PyTorch are the dominant choices. Researchers and app developers use this for deep learning research and app development.  

Fig: Preview of the output that you will get on running this code from your IDE.


In this solution we are using Theano library in Python.


Follow the steps carefully to get the output easily.

  1. Download and Install the PyCharm Community Edition on your computer.
  2. Open the terminal and install the required libraries with the following commands.
  3. Install Theano - pip install Theano.
  4. Copy the snippet using the 'copy' button and paste it into terminal.
  5. Wait till installation process to be completed.

I hope you found this useful.

I found this code snippet by searching for 'How to install Theano in python' in Kandi. You can try any such use case!

Environment Tested

I tested this solution in the following versions. Be mindful of changes when working with other versions.

  1. PyCharm Community Edition 2022.3.1
  2. The solution is created in Python 3.11.1 Version
  3. Theano 1.0.5 Version

Using this solution, we can able to install Theano in Python using pip with simple steps. This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to install Theano in Python using pip.

Dependent Library

pipby pypa

Python doticonstar image 8774 doticonVersion:Currentdoticon
License: Permissive (MIT)

The Python package installer


            pipby pypa

            Python doticon star image 8774 doticonVersion:Currentdoticon License: Permissive (MIT)

            The Python package installer

                      Theanoby Theano

                      Python doticonstar image 9721 doticonVersion:Currentdoticon
                      License: Others (Non-SPDX)

                      Theano was a Python library that allows you to define, optimize, and evaluate mathematical expressions involving multi-dimensional arrays efficiently. It is being continued as aesara:


                                Theanoby Theano

                                Python doticon star image 9721 doticonVersion:Currentdoticon License: Others (Non-SPDX)

                                Theano was a Python library that allows you to define, optimize, and evaluate mathematical expressions involving multi-dimensional arrays efficiently. It is being continued as aesara:

                                          You can search for any dependent library on kandi like 'Theano'.


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                                          1. What is Theano, and why should I install it for my algorithms?  

                                          Theano was a popular open-source numerical computation library. Deep learning and machine learning tasks use this. But Theano is no longer developed or maintained. The community and many researchers have shifted to using other deep-learning frameworks. Those frameworks are like TensorFlow and PyTorch.   

                                          You don't need to install Theano for your algorithms in 2023. Instead, consider using TensorFlow or PyTorch. Modern deep learning and machine learning tasks use these.  

                                          2. How can I use matrix operations with Theano?  

                                          Theano is a Python library for numerical computations. It is particularly well-suited for deep learning and machine learning tasks. To perform matrix operations with Theano, you'll need to follow these steps:  

                                          • Install Theano  

                                          pip install Theano  

                                          • Import Theano   

                                          import theano import theano.tensor as T  

                                          • Define Symbols  

                                          A = T.matrix() B = T.matrix()  

                                          • Define Operations  

                                          C = (A, B)  

                                          • Compile a Function  

                                          matrix_multiply = theano.function(inputs= [A, B], outputs=C)  

                                          • Execute Operations  

                                          import numpy as np  

                                          # Example: Perform a matrix multiplication   

                                          matrix1 = np.array([[1, 2], [3, 4]])   

                                          matrix2 = np.array([[5, 6], [7, 8]])   

                                          result = matrix_multiply(matrix1, matrix2)  

                                          • Clean Up  


                                          That's a basic overview of using matrix operations with Theano.   

                                          3. Where can I find an Installing Theano guide?  

                                          You can find installation guides for Theano on its official website. But please note that the developers may no longer maintain Theano. Other deep learning frameworks have surpassed its usage. Those frameworks are like TensorFlow and PyTorch. I recommend checking the latest resources and community discussions. Use this for the most up-to-date information on installing and using Theano. 


                                          4. Should I use Anaconda or Pip to install Theano?  

                                          You could use either Anaconda or Pip to install Theano. You can choose how to install it based on your preferences and current Python setup. Anaconda is a distribution that includes its package manager called Conda. This Conda can make managing packages and environments easier. If you prefer to use Anaconda, you can create a new environment. After creating a new environment, install Theano using Conda within that environment.  

                                          If you prefer to use Pip, you can install Theano using Pip with the following command:   

                                                       pip install Theano  

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