jupyter notebook dark theme with code examples

Jupyter Notebook is a popular open-source web-based interactive development environment (IDE) that enables users to create and share documents that contain live code, equations, visualizations, and narrative text. One of the most requested features for Jupyter Notebook users is the ability to switch to a dark theme, which can reduce eye strain and make it easier to work on the notebook for long periods of time. In this article, we will show you how to enable the dark theme in Jupyter Notebook and provide code examples to customize your experience.

To enable the dark theme in Jupyter Notebook, you will need to install the jupyterthemes package. This package provides several options for customizing the appearance of the notebook, including the dark theme. To install the package, open a terminal window and type the following command:

pip install jupyterthemes

Once the package is installed, you can use the command jt -t followed by the theme name to switch to the dark theme. The theme name is "monokai".

jt -t monokai

You can also use the command jt -l to see a list of all available themes. To switch back to the default theme, you can use the command jt -r.

In addition to the dark theme, jupyterthemes also provides several options for customizing the notebook font, font size, and the width of the notebook cells. You can use the following command to change the font to "Source Code Pro" and the font size to 14:

jt -f source -fs 14

You can also use the following command to change the width of the notebook cells:

jt -cellw 80%

You can also set a specific theme as default by using the command:

jt -t monokai -T

Once you have finished customizing the appearance of the notebook, you can use the File > Save and Checkpoint to save the changes to your notebook.

In conclusion, Jupyter Notebook dark theme is a great way to reduce eye strain and make it easier to work on the notebook for long periods of time. The jupyterthemes package provides an easy way to switch to a dark theme and customize the appearance of the notebook. By using the commands provided in this article, you can easily switch to the dark theme and customize the font, font size, and width of the notebook cells to suit your needs.

In addition to changing the theme and font, Jupyter Notebook also allows you to customize the color of the code cells. You can use the %%html magic command to add custom CSS styles to the notebook. For example, you can use the following code to change the background color of the code cells to dark grey:

from IPython.core.display import HTML

CSS = """
.highlight .hll { background-color: #3f3f3f; }
.highlight  { background: #3f3f3f; }
"""

HTML('<style>{}</style>'.format(CSS))

You can also use the %%javascript magic command to add custom javascript to the notebook. For example, you can use the following code to change the color of the text in the code cells to white:

from IPython.core.display import Javascript

JS = """
$('.code').css('color', 'white');
"""

Javascript(JS)

Another useful feature of Jupyter Notebook is the ability to add and use extensions. There are several extensions available that can enhance the functionality of the notebook. For example, the jupyter_contrib_nbextensions package provides several useful extensions, such as the ability to add line numbers to the code cells, the ability to hide the input and output of code cells, and the ability to collapse and expand code cells.

To install the jupyter_contrib_nbextensions package, you can use the following command:

pip install jupyter_contrib_nbextensions

Once the package is installed, you can use the command jupyter contrib nbextension install --user to install the extensions. You can then use the command jupyter nbextension enable followed by the extension name to enable the extension.

In addition to these features, Jupyter Notebook also allows you to add and use custom kernels. A kernel is a program that runs the code in the notebook and returns the output. Jupyter Notebook supports several languages out of the box, such as Python, R, and Julia. However, if you want to use a different language, you can install and use a custom kernel.

For example, if you want to use the bash shell in Jupyter Notebook, you can install the bash_kernel package using the following command:

pip install bash_kernel

Once the package is installed, you can use the command python -m bash_kernel.install to install the kernel. You can then use the command jupyter kernelspec list to see the available kernels and use the command jupyter notebook to start a notebook using the bash kernel.

In conclusion, Jupyter Notebook is a powerful tool for interactive computing and data science. By using the techniques described in this article, you can customize the appearance of the notebook, add line numbers, hide input and output, collapse and expand code cells, use custom kernels and more. This can help you to increase your productivity, reduce eye strain and make it easier to work on the notebook for long periods of time.

Popular questions

1. How can I change the theme of my Jupyter Notebook to a dark theme?
   Answer: You can use the jupyter-themes package to change the theme of your Jupyter Notebook to a dark theme. You can install the package using the command pip install jupyterthemes, and then use the command jt -t [theme-name] to change the theme. For example, jt -t monokai will change the theme to monokai theme.

2. How can I change the font of my Jupyter Notebook?
   Answer: You can use the jupyter-themes package to change the font of your Jupyter Notebook. You can install the package using the command pip install jupyterthemes, and then use the command jt -tf [font-name] to change the font. For example, jt -tf consolas will change the font to consolas.

3. How can I change the color of the code cells in my Jupyter Notebook to dark grey?
   Answer: You can use the %%html magic command to add custom CSS styles to the notebook. For example, you can use the following code to change the background color of the code cells to dark grey:

from IPython.core.display import HTML

CSS = """
.highlight .hll { background-color: #3f3f3f; }
.highlight  { background: #3f3f3f; }
"""

HTML('<style>{}</style>'.format(CSS))

4. How can I change the color of the text in the code cells to white in Jupyter Notebook?
   Answer: You can use the %%javascript magic command to add custom javascript to the notebook. For example, you can use the following code to change the color of the text in the code cells to white:

from IPython.core.display import Javascript

JS = """
$('.code').css('color', 'white');
"""

Javascript(JS)

5. How can I use a custom kernel in Jupyter Notebook?
   Answer: Jupyter Notebook supports several languages out of the box, such as Python, R, and Julia. However, if you want to use a different language, you can install and use a custom kernel. For example, if you want to use the bash shell in Jupyter Notebook, you can install the bash_kernel package using the command pip install bash_kernel. Once the package is installed, you can use the command python -m bash_kernel.install to install the kernel. Then you can use the command jupyter kernelspec list to see the available kernels and use the command jupyter notebook to start a notebook using the bash kernel.

Tag

Jupyter