mirror of
https://github.com/pyscript/pyscript.git
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Merge pull request #34 from anaconda/rendermime
Add MIME renderer support
This commit is contained in:
Fabio Pliger
60
pyscriptjs/examples/altair.html
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60
pyscriptjs/examples/altair.html
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@@ -0,0 +1,60 @@
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<html>
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<head>
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<title>Altair</title>
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<meta charset="utf-8">
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<link rel="stylesheet" href="../build/pyscript.css" />
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<script defer src="../build/pyscript.js"></script>
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<py-env>
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- altair
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- pandas
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- vega_datasets
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</py-env>
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</head>
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<body>
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<div id="altair" style="width: 100%; height: 100%"></div>
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<py-script output="altair">
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import altair as alt
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from vega_datasets import data
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source = data.movies.url
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pts = alt.selection(type="single", encodings=['x'])
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rect = alt.Chart(data.movies.url).mark_rect().encode(
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alt.X('IMDB_Rating:Q', bin=True),
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alt.Y('Rotten_Tomatoes_Rating:Q', bin=True),
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alt.Color('count()',
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scale=alt.Scale(scheme='greenblue'),
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legend=alt.Legend(title='Total Records')
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)
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)
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circ = rect.mark_point().encode(
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alt.ColorValue('grey'),
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alt.Size('count()',
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legend=alt.Legend(title='Records in Selection')
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)
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).transform_filter(
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pts
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)
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bar = alt.Chart(source).mark_bar().encode(
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x='Major_Genre:N',
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y='count()',
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color=alt.condition(pts, alt.ColorValue("steelblue"), alt.ColorValue("grey"))
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).properties(
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width=550,
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height=200
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).add_selection(pts)
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alt.vconcat(
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rect + circ,
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bar
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).resolve_legend(
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color="independent",
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size="independent"
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)
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</py-script>
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</body>
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</html>
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72
pyscriptjs/examples/antigravity.html
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72
pyscriptjs/examples/antigravity.html
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@@ -0,0 +1,72 @@
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<html>
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<head>
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<title>Antigravity</title>
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<meta charset="utf-8">
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<link rel="stylesheet" href="../build/pyscript.css" />
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<script defer src="../build/pyscript.js"></script>
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<style>
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.loading {
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display: inline-block;
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width: 50px;
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height: 50px;
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border: 3px solid rgba(255, 255, 255, 0.3);
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border-radius: 50%;
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border-top-color: black;
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animation: spin 1s ease-in-out infinite;
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}
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@keyframes spin {
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to {
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transform: rotate(360deg);
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}
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}
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</style>
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</head>
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<body>
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<b>
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Based on xkcd: antigravity https://xkcd.com/353/.
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</b>
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<div style="display: flex; flex-direction: row">
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<div id="antigravity" style="width: 400px; height: 400px">
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<div class="loading"></div>
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</div>
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</div>
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<py-script output="antigravity">
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import random
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from js import document, setInterval
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from pyodide import create_proxy
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from pyodide.http import open_url
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class Antigravity():
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def __init__(self, node):
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self.node = node
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self.xoffset, self.yoffset = 0, 0
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setInterval(create_proxy(self.move), 10)
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def move(self):
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char = document.getElementById('python')
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console.log(char)
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char.setAttribute('transform', f'translate({self.xoffset}, {-self.yoffset})')
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self.xoffset += random.normalvariate(0, 1)/20
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if self.yoffset < 50:
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self.yoffset += 0.1
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else:
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self.yoffset += random.normalvariate(0, 1)/20
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def _repr_svg_(self):
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return open_url('./antigravity.svg').read()
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node = document.getElementById('antigravity')
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node.replaceChildren()
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Antigravity(node)
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</py-script>
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</body>
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</html>
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72
pyscriptjs/examples/antigravity.svg
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72
pyscriptjs/examples/antigravity.svg
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File diff suppressed because one or more lines are too long
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After Width: | Height: | Size: 212 KiB |
49
pyscriptjs/examples/folium.html
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49
pyscriptjs/examples/folium.html
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@@ -0,0 +1,49 @@
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<html>
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<head>
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<title>Folium</title>
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<meta charset="utf-8">
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<link rel="stylesheet" href="../build/pyscript.css" />
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<script defer src="../build/pyscript.js"></script>
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<py-env>
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- folium
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- pandas
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</py-env>
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</head>
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<body>
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<div id="folium" style="width: 100%; height: 100%"></div>
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<py-script output="folium">
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import folium
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import json
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import pandas as pd
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from pyodide.http import open_url
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url = (
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"https://raw.githubusercontent.com/python-visualization/folium/master/examples/data"
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)
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state_geo = f"{url}/us-states.json"
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state_unemployment = f"{url}/US_Unemployment_Oct2012.csv"
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state_data = pd.read_csv(open_url(state_unemployment))
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geo_json = json.loads(open_url(state_geo).read())
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m = folium.Map(location=[48, -102], zoom_start=3)
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folium.Choropleth(
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geo_data=geo_json,
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name="choropleth",
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data=state_data,
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columns=["State", "Unemployment"],
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key_on="feature.id",
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fill_color="YlGn",
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fill_opacity=0.7,
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line_opacity=0.2,
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legend_name="Unemployment Rate (%)",
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).add_to(m)
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folium.LayerControl().add_to(m)
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m
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</py-script>
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</body>
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</html>
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50
pyscriptjs/examples/matplotlib.html
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50
pyscriptjs/examples/matplotlib.html
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@@ -0,0 +1,50 @@
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<html>
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<head>
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<title>Matplotlib</title>
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<meta charset="utf-8">
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<link rel="stylesheet" href="../build/pyscript.css" />
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<script defer src="../build/pyscript.js"></script>
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<py-env>
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- matplotlib
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</py-env>
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</head>
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<body>
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<div id="mpl"></div>
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<py-script output="mpl">
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import matplotlib.pyplot as plt
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import matplotlib.tri as tri
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import numpy as np
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# First create the x and y coordinates of the points.
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n_angles = 36
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n_radii = 8
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min_radius = 0.25
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radii = np.linspace(min_radius, 0.95, n_radii)
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angles = np.linspace(0, 2 * np.pi, n_angles, endpoint=False)
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angles = np.repeat(angles[..., np.newaxis], n_radii, axis=1)
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angles[:, 1::2] += np.pi / n_angles
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x = (radii * np.cos(angles)).flatten()
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y = (radii * np.sin(angles)).flatten()
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z = (np.cos(radii) * np.cos(3 * angles)).flatten()
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# Create the Triangulation; no triangles so Delaunay triangulation created.
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triang = tri.Triangulation(x, y)
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# Mask off unwanted triangles.
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triang.set_mask(np.hypot(x[triang.triangles].mean(axis=1),
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y[triang.triangles].mean(axis=1))
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< min_radius)
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fig1, ax1 = plt.subplots()
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ax1.set_aspect('equal')
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tpc = ax1.tripcolor(triang, z, shading='flat')
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fig1.colorbar(tpc)
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ax1.set_title('tripcolor of Delaunay triangulation, flat shading')
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fig1
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</py-script>
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</body>
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</html>
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@@ -14,6 +14,95 @@ import io, base64, sys
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loop = asyncio.get_event_loop()
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MIME_METHODS = {
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'__repr__': 'text/plain',
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'_repr_html_': 'text/html',
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'_repr_markdown_': 'text/markdown',
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'_repr_svg_': 'image/svg+xml',
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'_repr_png_': 'image/png',
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'_repr_pdf_': 'application/pdf',
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'_repr_jpeg_': 'image/jpeg',
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'_repr_latex': 'text/latex',
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'_repr_json_': 'application/json',
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'_repr_javascript_': 'application/javascript',
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'savefig': 'image/png'
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}
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def render_image(mime, value, meta):
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data = f'data:{mime};charset=utf-8;base64,{value}'
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attrs = ' '.join(['{k}="{v}"' for k, v in meta.items()])
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return f'<img src="{data}" {attrs}</img>'
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def identity(value, meta):
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return value
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MIME_RENDERERS = {
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'text/plain': identity,
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'text/html' : identity,
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'image/png' : lambda value, meta: render_image('image/png', value, meta),
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'image/jpeg': lambda value, meta: render_image('image/jpeg', value, meta),
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'image/svg+xml': identity,
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'application/json': identity,
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'application/javascript': lambda value, meta: f'<script>{value}</script>'
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}
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def eval_formatter(obj, print_method):
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"""
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Evaluates a formatter method.
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"""
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if hasattr(obj, print_method):
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if print_method == 'savefig':
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buf = io.BytesIO()
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obj.savefig(buf, format='png')
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buf.seek(0)
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return base64.b64encode(buf.read()).decode('utf-8')
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return getattr(obj, print_method)()
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if print_method == '_repr_mimebundle_':
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return {}, {}
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return None
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def format_mime(obj):
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"""
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Formats object using _repr_x_ methods.
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"""
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if isinstance(obj, str):
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return obj, 'text/plain'
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mimebundle = eval_formatter(obj, '_repr_mimebundle_')
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if isinstance(mimebundle, tuple):
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format_dict, md_dict = mimebundle
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else:
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format_dict = mimebundle
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md_dict = {}
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output, not_available = None, []
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for method, mime_type in reversed(MIME_METHODS.items()):
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if mime_type in format_dict:
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output = format_dict[mime_type]
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else:
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output = eval_formatter(obj, method)
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if output is None:
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continue
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elif mime_type not in MIME_RENDERERS:
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not_available.append(mime_type)
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continue
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break
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if output is None:
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if not_available:
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console.warning(f'Rendered object requested unavailable MIME renderers: {not_available}')
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output = repr(output)
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mime_type = 'text/plain'
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elif isinstance(output, tuple):
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output, meta = output
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else:
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meta = {}
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return MIME_RENDERERS[mime_type](output, meta), mime_type
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class PyScript:
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loop = loop
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@@ -30,17 +119,13 @@ class PyScript:
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element_id = child.id = f"{element_id}-{exec_id}";
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element.appendChild(child);
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if hasattr(value, "savefig"):
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console.log(f"FIGURE: {value}")
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buf = io.BytesIO()
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value.savefig(buf, format='png')
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buf.seek(0)
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img_str = 'data:image/png;base64,' + base64.b64encode(buf.read()).decode('UTF-8')
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document.getElementById(element_id).innerHTML = f'<div><img id="plt" src="{img_str}"/></div>'
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elif hasattr(value, "startswith") and value.startswith("data:image"):
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document.getElementById(element_id).innerHTML = f'<div><img id="plt" src="{value}"/></div>'
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element = document.getElementById(element_id)
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html, mime_type = format_mime(value)
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if mime_type in ('application/javascript', 'text/html'):
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scriptEl = document.createRange().createContextualFragment(html)
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element.appendChild(scriptEl)
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else:
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document.getElementById(element_id).innerHTML = value;
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element.innerHTML = html
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@staticmethod
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def run_until_complete(f):
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@@ -106,10 +191,9 @@ class Element:
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# Inject it into the DOM
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self.element.after(clone);
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return Element(clone.id, clone)
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def remove_class(self, classname):
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if isinstance(classname, list):
|
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for cl in classname:
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@@ -146,7 +230,7 @@ class PyItemTemplate(Element):
|
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|
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def __init__(self, data, labels=None, state_key=None, parent=None):
|
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self.data = data
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|
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|
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self.register_parent(parent)
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|
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if not labels:
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@@ -169,7 +253,7 @@ class PyItemTemplate(Element):
|
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console.log('creating section')
|
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new_child = create('section', self._id, "task bg-white my-1")
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console.log('creating values')
|
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|
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|
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console.log('creating innerHtml')
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new_child._element.innerHTML = f"""
|
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<label for="flex items-center p-2 ">
|
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@@ -277,7 +361,6 @@ class PyListTemplate:
|
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"""Overwrite me to define logic"""
|
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pass
|
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|
||||
|
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|
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class OutputCtxManager:
|
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def __init__(self, out=None, output_to_console=True, append=True):
|
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@@ -338,7 +421,7 @@ let loadInterpreter = async function(): Promise<any> {
|
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pyodide = await loadPyodide({
|
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stdout: console.log,
|
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stderr: console.log
|
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});
|
||||
});
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||||
|
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// now that we loaded, add additional convenience fuctions
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console.log("loading micropip");
|
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|
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@@ -1,9 +1,99 @@
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from js import document, setInterval, console
|
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import micropip
|
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import asyncio
|
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import io, base64
|
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import io, base64, sys
|
||||
|
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loop = asyncio.get_event_loop()
|
||||
|
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MIME_METHODS = {
|
||||
'__repr__': 'text/plain',
|
||||
'_repr_html_': 'text/html',
|
||||
'_repr_markdown_': 'text/markdown',
|
||||
'_repr_svg_': 'image/svg+xml',
|
||||
'_repr_png_': 'image/png',
|
||||
'_repr_pdf_': 'application/pdf',
|
||||
'_repr_jpeg_': 'image/jpeg',
|
||||
'_repr_latex': 'text/latex',
|
||||
'_repr_json_': 'application/json',
|
||||
'_repr_javascript_': 'application/javascript',
|
||||
'savefig': 'image/png'
|
||||
}
|
||||
|
||||
def render_image(mime, value, meta):
|
||||
data = f'data:{mime};charset=utf-8;base64,{value}'
|
||||
attrs = ' '.join(['{k}="{v}"' for k, v in meta.items()])
|
||||
return f'<img src="{data}" {attrs}</img>'
|
||||
|
||||
def identity(value, meta):
|
||||
return value
|
||||
|
||||
|
||||
MIME_RENDERERS = {
|
||||
'text/plain': identity,
|
||||
'text/html' : identity,
|
||||
'image/png' : lambda value, meta: render_image('image/png', value, meta),
|
||||
'image/jpeg': lambda value, meta: render_image('image/jpeg', value, meta),
|
||||
'image/svg+xml': identity,
|
||||
'application/json': identity,
|
||||
'application/javascript': lambda value, meta: f'<script>{value}</script>'
|
||||
}
|
||||
|
||||
|
||||
def eval_formatter(obj, print_method):
|
||||
"""
|
||||
Evaluates a formatter method.
|
||||
"""
|
||||
if hasattr(obj, print_method):
|
||||
if print_method == 'savefig':
|
||||
buf = io.BytesIO()
|
||||
obj.savefig(buf, format='png')
|
||||
buf.seek(0)
|
||||
return base64.b64encode(buf.read()).decode('utf-8')
|
||||
return getattr(obj, print_method)()
|
||||
if print_method == '_repr_mimebundle_':
|
||||
return {}, {}
|
||||
return None
|
||||
|
||||
|
||||
def format_mime(obj):
|
||||
"""
|
||||
Formats object using _repr_x_ methods.
|
||||
"""
|
||||
if isinstance(obj, str):
|
||||
return obj, 'text/plain'
|
||||
|
||||
mimebundle = eval_formatter(obj, '_repr_mimebundle_')
|
||||
if isinstance(mimebundle, tuple):
|
||||
format_dict, md_dict = mimebundle
|
||||
else:
|
||||
format_dict = mimebundle
|
||||
md_dict = {}
|
||||
|
||||
output, not_available = None, []
|
||||
for method, mime_type in reversed(MIME_METHODS.items()):
|
||||
if mime_type in format_dict:
|
||||
output = format_dict[mime_type]
|
||||
else:
|
||||
output = eval_formatter(obj, method)
|
||||
|
||||
if output is None:
|
||||
continue
|
||||
elif mime_type not in MIME_RENDERERS:
|
||||
not_available.append(mime_type)
|
||||
continue
|
||||
break
|
||||
if output is None:
|
||||
if not_available:
|
||||
console.warning(f'Rendered object requested unavailable MIME renderers: {not_available}')
|
||||
output = repr(output)
|
||||
mime_type = 'text/plain'
|
||||
elif isinstance(output, tuple):
|
||||
output, meta = output
|
||||
else:
|
||||
meta = {}
|
||||
return MIME_RENDERERS[mime_type](output, meta), mime_type
|
||||
|
||||
|
||||
class PyScript:
|
||||
loop = loop
|
||||
|
||||
@@ -14,23 +104,19 @@ class PyScript:
|
||||
if append:
|
||||
child = document.createElement('div');
|
||||
element = document.querySelector(f'#{element_id}');
|
||||
if not element:
|
||||
return
|
||||
exec_id = exec_id or element.childElementCount + 1
|
||||
element_id = child.id = f"{element_id}-{exec_id}";
|
||||
element.appendChild(child);
|
||||
|
||||
if hasattr(value, "savefig"):
|
||||
console.log(f"FIGURE: {value}")
|
||||
buf = io.BytesIO()
|
||||
value.savefig(buf, format='png')
|
||||
buf.seek(0)
|
||||
img_str = 'data:image/png;base64,' + base64.b64encode(buf.read()).decode('UTF-8')
|
||||
document.getElementById(element_id).innerHTML = f'<div><img id="plt" src="{img_str}"/></div>'
|
||||
elif hasattr(value, "startswith") and value.startswith("data:image"):
|
||||
console.log(f"DATA/IMAGE: {value}")
|
||||
document.getElementById(element_id).innerHTML = f'<div><img id="plt" src="{value}"/></div>'
|
||||
element = document.getElementById(element_id)
|
||||
html, mime_type = format_mime(value)
|
||||
if mime_type in ('application/javascript', 'text/html'):
|
||||
scriptEl = document.createRange().createContextualFragment(html)
|
||||
element.appendChild(scriptEl)
|
||||
else:
|
||||
document.getElementById(element_id).innerHTML = repr(value);
|
||||
console.log(f"ELSE: {append} ==> {element_id} --> {value}")
|
||||
element.innerHTML = html
|
||||
|
||||
@staticmethod
|
||||
def run_until_complete(f):
|
||||
@@ -86,5 +172,3 @@ class Element:
|
||||
self.element.after(clone);
|
||||
|
||||
return Element(clone.id, clone)
|
||||
|
||||
pyscript = PyScript()
|
||||
|
||||
Reference in New Issue
Block a user