iPython display examples

Some JupyterLite inspired examples (see python.ipynb) of using iPython display.

from IPython.display import HTML, JSON, Markdown, Math, display

Single elements

Individual elements can be rendered without display()

HTML("<h3>HTML Title</h3>")

HTML Title

Markdown("### Markdown title")

Markdown title

Math("a^2 + b^2 = c^2")

\(\displaystyle a^2 + b^2 = c^2\)

JSON(["foo", {"bar": ("baz", None, 1.0, 2)}], expanded=True)

<IPython.core.display.JSON object>

Multiple elements

Use display to show multipe elements from a single cell.

display(HTML("<em>HTML element</em>"))
display(Markdown("__Markdown title__"))
display(Math("a^2 + b^2 = c^2"))

HTML element

Markdown title

\(\displaystyle a^2 + b^2 = c^2\)

print("'first element'")
display("second element")
print("'third element'")

'first element'

'second element'

'third element'

---

This does not work without display()

HTML("first HTML element <em>not shown</em>")
Markdown("only last Markdown element _shown_")

only last Markdown element shown

JupyterLite examples

The JupyterLite example python.ipynb made me aware of iPython display.

Here are some of these examples. They are modified to get a nice table of content in Jupyter.

from IPython.display import HTML, JSON, Latex, Markdown

HTML

print("Before display")

s = "<h3>HTML Title</h3>"
display(HTML(s))

print("After display")

Before display

HTML Title

After display

HTML(
    """
        <div style="background: aliceblue; width: 200px; height: 100px; border-radius: 10px;">
        </div>
    """  # noqa: E501
)

Markdown

Markdown(
    """
### Title

**in bold**

~~Strikethrough~~
"""
)

Title

in bold

Strikethrough

Pandas DataFrame

from string import ascii_uppercase as letters

import numpy as np
import pandas as pd
from IPython.display import display

df = pd.DataFrame(
    np.random.randint(0, 100, size=(100, len(letters))), columns=list(letters)
)
df

	A	B	C	D	E	F	G	H	I	J	...	Q	R	S	T	U	V	W	X	Y	Z
0	43	27	22	30	11	64	63	50	90	53	...	2	38	30	53	50	93	43	44	20	28
1	79	21	73	33	14	84	79	21	77	37	...	93	61	32	23	38	17	10	2	89	23
2	60	89	4	35	13	53	64	12	13	66	...	25	6	53	6	60	19	98	65	73	89
3	41	64	96	28	25	8	26	65	32	30	...	4	27	53	53	11	95	10	97	88	19
4	15	93	72	37	17	94	16	22	34	77	...	22	45	22	0	35	47	15	26	53	38
...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...
95	96	84	86	54	51	75	39	31	78	66	...	92	97	72	58	82	51	22	51	55	13
96	56	54	86	21	86	16	65	56	96	62	...	19	8	29	58	11	28	58	55	81	0
97	62	7	94	1	1	73	83	82	42	63	...	54	59	14	92	42	54	71	33	15	7
98	86	88	62	58	60	83	79	26	32	68	...	44	49	8	8	80	26	34	59	86	14
99	91	65	43	30	51	40	97	81	35	76	...	37	2	15	24	76	99	42	84	87	5

100 rows × 26 columns

Math

from IPython.display import Math

Math(r"F(k) = \int_{-\infty}^{\infty} f(x) e^{2\pi i k} dx")

\(\displaystyle F(k) = \int_{-\infty}^{\infty} f(x) e^{2\pi i k} dx\)

Latex

Latex(
    r"""
      \begin{eqnarray}
        \nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} & = \frac{4\pi}{c}\vec{\mathbf{j}} \\
        \nabla \cdot \vec{\mathbf{E}} & = 4 \pi \rho \\
        \nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} & = \vec{\mathbf{0}} \\
        \nabla \cdot \vec{\mathbf{B}} & = 0
      \end{eqnarray}
      """  # noqa: E501
)

<IPython.core.display.Latex object>

JSON

JSON(["foo", {"bar": ("baz", None, 1.0, 2)}], metadata={}, expanded=True, root="test")

<IPython.core.display.JSON object>

Network requests and JSON

Here, I use requests instead of the JupyterLite version with js.

%pip install -q requests

/Users/hd/hd/learning/learning-diary/.venv/bin/python: No module named pip
Note: you may need to restart the kernel to use updated packages.

import requests

r = requests.get("https://httpbin.org/get")
r.text

'{\n  "args": {}, \n  "headers": {\n    "Accept": "*/*", \n    "Accept-Encoding": "gzip, deflate", \n    "Host": "httpbin.org", \n    "User-Agent": "python-requests/2.31.0", \n    "X-Amzn-Trace-Id": "Root=1-65fab6bc-1087d67f265788bf1f4c3a6d"\n  }, \n  "origin": "79.212.250.177", \n  "url": "https://httpbin.org/get"\n}\n'

JSON(r.json())

<IPython.core.display.JSON object>