Using Google Colab to Run Python Code and Install Packages

Shubham Thorat
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Google Colab (short for Colaboratory) is a free cloud-based platform provided by Google that allows you to write and execute Python code in a Jupyter notebook environment, directly in your web browser. It offers many benefits, including free access to GPU and TPU resources, collaborative editing, and easy sharing of notebooks. In this article, we'll explore how to use Google Colab to run Python code and install packages, with a specific focus on installing BioPython.



Getting Started with Google Colab


1. Accessing Google Colab

  • You will be prompted to sign in with your Google account if you haven't already.


2. Creating a New Notebook

  • Click on "New Notebook" to create a new Python notebook.
  • A new notebook will open in a new tab.


3. Running Python Code

  • In a code cell, you can write Python code just like you would in a local Jupyter notebook.
  • To execute the code, either press Shift+Enter or click on the play button on the left side of the cell.



Installing Packages in Google Colab

While Google Colab comes pre-installed with many popular Python libraries, you may need to install additional packages. Here's how to install packages, using BioPython as an example:


1. Using pip

  • To install packages, use the `!pip install` command followed by the package name.
# Install BioPython using pip
!pip install biopython(code-box)


2. Using apt-get 

  • Some packages may require system-level dependencies. You can use `apt-get` for this purpose.
# Install system packages using apt-get
!apt-get -qq install -y libpq-dev python-dev libxml2-dev libxslt1-dev libffi-dev libssl-dev(code-box)


3. Verifying Package Installation 

  • After installation, you can verify if the package is successfully installed by attempting to import it.


# Import BioPython and print its version
import Bio
print("BioPython version:", Bio.__version__)(code-box)


Significance:

Google Colab provides a convenient and powerful environment for running Python code, especially for data analysis, machine learning, and scientific computing. With the ability to install packages, access cloud resources, and collaborate with others in real-time, Google Colab is an excellent choice for various Python projects, including bioinformatics analyses using packages like BioPython. By following the steps outlined in this article, you can effectively utilize Google Colab for your Python programming needs.




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