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from dash import Dash, html, dcc, Input, Output, State
import pandas as pd
import dash_mantine_components as dmc
import duckdb
import time
from graphs.leaderboard import button_style, get_top_n_leaderboard, render_table_content
from dash_iconify import DashIconify
# Initialize the app
app = Dash()
server = app.server
# Query for most recent date in all_downloads
def get_last_updated():
try:
result = con.execute(
"SELECT MAX(time) as max_time FROM all_downloads"
).fetchdf()
max_time = result["max_time"].iloc[0]
if pd.isnull(max_time):
return "N/A"
dt = pd.to_datetime(max_time)
return dt.strftime("%b %d, %Y")
except Exception:
return "N/A"
def load_parquet_to_duckdb(con, parquet_url, view_name):
"""
Loads a parquet file from a remote URL into DuckDB as a view.
Returns (start_dt, end_dt) for the 'time' column.
"""
# Install and load httpfs extension for remote file access
con.execute("INSTALL httpfs;")
con.execute("LOAD httpfs;")
# Create a view that references the remote parquet file
con.execute(f"""
CREATE OR REPLACE VIEW {view_name} AS
SELECT * FROM read_parquet('{parquet_url}')
""")
# Get time range for slider
time_range = con.execute(
f"SELECT MIN(time) as min_time, MAX(time) as max_time FROM {view_name}"
).fetchdf()
start_dt = pd.to_datetime(time_range["min_time"].iloc[0])
end_dt = pd.to_datetime(time_range["max_time"].iloc[0])
return start_dt, end_dt
# DuckDB connection (global)
con = duckdb.connect(database=":memory:", read_only=False)
# disable all caching so HF Spaces always read latest parquet
con.execute("SET enable_http_metadata_cache = false;")
con.execute("SET enable_object_cache = false;")
# Load parquet files from Hugging Face using DuckDB
HF_DATASET_ID = "mmpr/open_model_evolution_data"
hf_parquet_url_1 = "https://huggingface.co/datasets/mmpr/open_model_evolution_data/resolve/main/all_downloads_with_annotations.parquet"
hf_parquet_url_2 = "https://huggingface.co/datasets/mmpr/open_model_evolution_data/resolve/main/one_year_rolling.parquet"
print(f"Attempting to connect to dataset from Hugging Face Hub: {HF_DATASET_ID}")
try:
overall_start_time = time.time()
# Load both parquet files as views
start_dt, end_dt = load_parquet_to_duckdb(con, hf_parquet_url_1, "all_downloads")
# Example: load a second parquet file as another view
start_dt2, end_dt2 = load_parquet_to_duckdb(
con, hf_parquet_url_2, "one_year_rolling"
)
msg = f"Successfully connected to datasets in {time.time() - overall_start_time:.2f}s."
print(msg)
except Exception as e:
err_msg = f"Failed to load dataset(s). Error: {e}"
print(err_msg)
raise
# Create a dcc slider for time range selection by year (readable marks)
start_ts = int(start_dt.timestamp())
end_ts = int(end_dt.timestamp())
def ordinal(n):
# Helper to get ordinal suffix for a day
if 10 <= n % 100 <= 20:
suffix = "th"
else:
suffix = {1: "st", 2: "nd", 3: "rd"}.get(n % 10, "th")
return f"{n}{suffix}"
def format_date(dt):
# Format date as "Oct 8th, 2025"
return dt.strftime("%b") + f" {ordinal(dt.day)}, {dt.year}"
marks = []
# Add start label (e.g. "Jan 2020")
marks.append({"value": start_ts, "label": start_dt.strftime("%b %Y")})
# Add yearly marks between start and end (e.g. "2021", "2022")
for yr in range(start_dt.year, end_dt.year + 1):
yr_ts = int(pd.Timestamp(year=yr, month=1, day=1).timestamp())
start_yr = int(pd.Timestamp(year=start_dt.year, month=1, day=1).timestamp())
if yr_ts != start_yr and yr_ts != end_ts:
marks.append({"value": yr_ts, "label": str(yr)})
# Add end label (e.g. "Dec 2024")
marks.append({"value": end_ts, "label": end_dt.strftime("%b %Y")})
def get_thumb_labels(values):
# Returns formatted labels for both thumbs
distance = abs(values[1] - values[0])
close = distance < 4 * 30 * 86400 # 4 months
label_style = {
"background": "#fff",
"color": "#082030",
"fontWeight": "bold",
"fontSize": "13px",
"borderRadius": "8px",
"padding": "2px 8px",
"boxShadow": "0 1px 4px rgba(8,32,48,0.10)",
"position": "absolute",
"left": "50%",
"transform": "translateX(-50%)",
"whiteSpace": "nowrap",
"zIndex": 100,
}
if close:
# Move first label above, second label below (closer to slider)
style_top_1 = label_style.copy()
style_top_1["top"] = "-38px"
style_top_2 = label_style.copy()
style_top_2["top"] = "14px"
return [
html.Div(
format_date(pd.to_datetime(values[0], unit="s")),
style=style_top_1,
),
html.Div(
format_date(pd.to_datetime(values[1], unit="s")),
style=style_top_2,
),
]
else:
# Both labels below the slider (closer to slider)
style_top_1 = label_style.copy()
style_top_1["top"] = "14px"
style_top_2 = label_style.copy()
style_top_2["top"] = "14px"
return [
html.Div(
format_date(pd.to_datetime(values[0], unit="s")),
style=style_top_1,
),
html.Div(
format_date(pd.to_datetime(values[1], unit="s")),
style=style_top_2,
),
]
# Create a dcc slider for time range selection by year
time_slider = dmc.RangeSlider(
id="time-slider",
min=start_ts,
max=end_ts,
value=[
start_ts,
end_ts,
],
step=24 * 60 * 60,
color="#AC482A",
size="md",
radius="xl",
marks=marks,
style={"width": "95%", "paddingLeft": "60px"}, # updated paddingLeft
label=None,
showLabelOnHover=False,
labelTransitionProps={"transition": "fade", "duration": 150},
thumbChildren=get_thumb_labels([start_ts, end_ts]),
)
# Add a dcc.Store to hold the selected view (all_downloads or one_year_rolling)
app.layout = dmc.MantineProvider(
theme={
"colorScheme": "light",
"primaryColor": "blue",
"fontFamily": "Inter, sans-serif",
},
children=[
dcc.Store(id="selected-view", data="all_downloads"),
dcc.Store(id="model-attribution-type", data="uploader"),
html.Div(
[
# Header
html.Div(
[
html.Div(
[
html.Span(
[
html.Span(
className="live-dot",
),
html.Span(
"LIVE",
className="live-label",
),
],
className="live-row",
),
html.Span(
f"Last updated: {get_last_updated()}",
className="last-updated",
),
],
className="header-status-row",
),
html.Div(
[
html.A(
children=[
html.Img(
src="assets/images/dpi.svg",
className="header-logo-img",
),
"Data Provenance Initiative",
],
href="https://www.dataprovenance.org/",
target="_blank",
className="no-bg-link header-link",
),
html.A(
children=[
html.Img(
src="assets/images/hf.svg",
className="header-logo-img",
),
html.Span(
"Hugging Face",
className="hf-brand-text",
),
],
href="https://huggingface.co/",
target="_blank",
className="no-bg-link header-link",
),
html.A(
children=[
html.Span(
"Read the paper",
className="paper-text",
),
],
href="https://www.dataprovenance.org/economies-of-open-intelligence.pdf",
target="_blank",
className="no-bg-link header-link paper-link",
),
],
className="header-links-row",
),
],
style={
"display": "flex",
"justifyContent": "space-between",
"alignItems": "center",
"padding": "18px 24px",
"gap": "24px",
"backgroundColor": "#082030", # restored dark background
},
className="responsive-header", # <-- add class
),
html.Div(
children=[
dmc.Alert(
# add an icon to the alert
icon=DashIconify(
icon="mdi:information-outline",
width=18,
height=18,
style={"color": "#1A5F8D"},
),
children=[
"Note: This dashboard uses ",
html.A(
"public Hugging Face",
href="https://huggingface.co/datasets/hfmlsoc/hub_weekly_snapshots",
target="_blank",
style={
"color": "#1A5F8D",
"fontWeight": "bold",
"textDecoration": "underline",
},
),
" download data, which is less precise than data analyzed in the paper.",
],
color="blue",
radius="md",
variant="light",
withCloseButton=True,
style={
"marginTop": "16px",
"marginBottom": "8px",
"fontSize": "15px",
"fontWeight": "500",
"marginLeft": "auto",
"marginRight": "auto",
},
),
html.Span(
"The Open Model Leaderboard",
style={
"fontSize": 40,
"fontWeight": "700",
"textAlign": "center",
"marginTop": "20px",
"marginBottom": "20px",
},
),
],
style={
"display": "flex",
"flexDirection": "column",
"alignItems": "center",
"justifyContent": "center",
"gap": "12px",
"marginTop": "20px",
"marginBottom": "20px",
},
className="responsive-title-row", # <-- add class
),
html.Div(
children=[
"This leaderboard assesses concentrations of power in the open model ecosystem through ranking user downloads across three groups: countries, developers, and models. Explore how user downloads of models are distributed among these groups and identify key players shaping the open model ecosystem on Hugging Face. This dashboard accompanies the paper titled ",
html.A(
"Economies of Open Intelligence: Tracing Power & Participation in the Model Ecosystem.",
href="https://www.dataprovenance.org/economies-of-open-intelligence.pdf",
target="_blank",
style={
"color": "#AC482A",
"fontWeight": "700",
"textDecoration": "underline",
},
),
],
style={
"fontSize": 14,
"marginTop": 18,
"marginBottom": 12,
"marginLeft": 100,
"marginRight": 100,
"textAlign": "center",
},
className="responsive-intro", # <-- add class
),
html.Div(
children=[
html.Div(
[
html.Div(
html.Span(
[
"Download View",
dmc.HoverCard(
width=260,
shadow="md",
position="top",
children=[
dmc.HoverCardTarget(
html.Span(
DashIconify(
icon="mdi:information-outline",
width=16,
height=16,
style={
"marginLeft": "6px",
"color": "#AC482A",
"verticalAlign": "middle",
},
),
style={"cursor": "pointer"},
)
),
dmc.HoverCardDropdown(
dmc.Text(
"We believe this filter isolates more authentic usage, mitigating the impact of automatic software downloads for older models.",
size="sm",
style={"maxWidth": "240px"},
)
),
],
),
],
className="filter-label-row",
),
className="filter-label-container",
),
html.Div(
[
dmc.SegmentedControl(
id="segmented",
value="all-downloads",
color="#AC482A",
transitionDuration=200,
data=[
{
"value": "all-downloads",
"label": "All Downloads",
},
{
"value": "filtered-downloads",
"label": html.Span(
["Filtered Downloads"]
),
},
],
mb=10,
),
],
className="filter-segmented-row",
),
html.Div(
"Choose whether to count all downloads, or only downloads up to one year from model creation.",
className="filter-description",
),
html.Div(
[
html.Div(
"Model Attribution",
className="filter-label",
),
dmc.SegmentedControl(
id="model-attribution-segmented",
value="uploader",
color="#AC482A",
transitionDuration=200,
data=[
{
"value": "uploader",
"label": "Model Uploader",
},
{
"value": "original_creator",
"label": "Original Model Creator",
},
],
mb=10,
),
html.Div(
"Toggle between having downloads attributed to the account that uploaded the model, or the account that uploaded the model that this was originally derived from.",
className="filter-description",
),
],
style={"marginTop": "10px"},
),
html.Span(
id="global-toggle-status",
className="global-toggle-status",
),
],
className="main-content-left",
),
html.Div(
[
html.Div(
"Download Date Range",
className="filter-label",
),
time_slider,
html.Div(
"Adjust the time range to filter leaderboard results by when models were downloaded by users.",
className="filter-description filter-description-margin",
),
html.Div(
[
html.Div(
[
DashIconify(
icon="mdi:lightbulb-on-outline",
width=20,
height=20,
style={
"marginRight": "8px",
"color": "#082030",
},
),
html.Span("Tip"),
],
className="tip-title",
),
html.Div(
[
"Try switching between ",
html.Span(
"All Downloads",
className="tip-highlight",
),
" and ",
html.Span(
"Filtered Downloads",
className="tip-highlight",
),
" to compare net popularity (but many duplicate, unused downloads) versus more immediate interest as models are released. ",
"You can also toggle between ",
html.Span(
"Model Uploader",
className="tip-highlight",
),
" and ",
html.Span(
"Original Model Creator",
className="tip-highlight",
),
" to see how attribution affects perceived popularity.",
],
className="tip-description",
),
],
className="tip-section",
),
],
className="main-content-right",
),
],
style={
"display": "flex",
"gap": "24px",
"padding": "32px",
"alignItems": "flex-start",
"marginLeft": "100px",
"marginRight": "100px",
"backgroundColor": "#FFFBF9",
"borderRadius": "18px",
},
className="responsive-main-content", # <-- add class
),
html.Div(
[
dcc.Tabs(
id="leaderboard-tabs",
value="Countries",
children=[
dcc.Tab(
label="Countries",
value="Countries",
style={
"backgroundColor": "transparent",
"border": "none",
"padding": "10px 18px",
"color": "#6B7280",
"fontWeight": "500",
},
selected_style={
"backgroundColor": "transparent",
"border": "none",
"padding": "10px 18px",
"fontWeight": "700",
"borderBottom": "3px solid #082030",
},
children=[
html.Div(
children=[
"The country leaderboard shows how downloads are distributed across different nations, highlighting which countries are leading in model usage and adoption. The metadata includes the ",
html.Span(
"country", className="meta-var"
),
" and number of ",
html.Span(
"user downloads",
className="meta-var",
),
".",
],
className="tab-description",
),
html.Div(
dcc.Loading(
id="loading-countries",
type="circle",
color="#AC482A",
children=html.Div(
id="top_countries-table"
),
),
className="responsive-table-wrapper", # <-- add wrapper for scroll
),
html.Button(
id="top_countries-toggle",
children="▼ Show Top 50",
n_clicks=0,
style={**button_style, "border": "none"},
),
],
),
dcc.Tab(
label="Developers",
value="Developers",
style={
"backgroundColor": "transparent",
"border": "none",
"padding": "10px 18px",
"color": "#6B7280",
"fontWeight": "500",
},
selected_style={
"backgroundColor": "transparent",
"border": "none",
"padding": "10px 18px",
"fontWeight": "700",
"borderBottom": "3px solid #082030",
},
children=[
html.Div(
children=[
"The developer leaderboard highlights the most influential model creators on Hugging Face, showcasing which developers have garnered the highest download counts for their models. The metadata includes the ",
html.Span(
"developer", className="meta-var"
),
", number of ",
html.Span(
"user downloads",
className="meta-var",
),
", and ",
html.Span(
"country", className="meta-var"
),
".",
],
className="tab-description",
),
html.Div(
dcc.Loading(
id="loading-developers",
type="circle",
color="#AC482A",
children=html.Div(
id="top_developers-table"
),
),
className="responsive-table-wrapper",
),
html.Button(
id="top_developers-toggle",
children="▼ Show Top 50",
n_clicks=0,
style={**button_style, "border": "none"},
),
],
),
dcc.Tab(
label="Models",
value="Models",
style={
"backgroundColor": "transparent",
"border": "none",
"padding": "10px 18px",
"color": "#6B7280",
"fontWeight": "500",
},
selected_style={
"backgroundColor": "transparent",
"border": "none",
"padding": "10px 18px",
"fontWeight": "700",
"borderBottom": "3px solid #082030",
},
children=[
html.Div(
children=[
"The model leaderboard ranks individual models based on their download counts, revealing which models are most popular among users on Hugging Face. The metadata includes the ",
html.Span(
"model name", className="meta-var"
),
", number of ",
html.Span(
"user downloads",
className="meta-var",
),
", ",
html.Span(
"developer", className="meta-var"
),
", and ",
html.Span(
"modality", className="meta-var"
),
" (the input and output types of the model).",
],
className="tab-description",
),
html.Div(
dcc.Loading(
id="loading-models",
type="circle",
color="#AC482A",
children=html.Div(
id="top_models-table"
),
),
className="responsive-table-wrapper",
),
html.Button(
id="top_models-toggle",
children="▼ Show Top 50",
n_clicks=0,
style={**button_style, "border": "none"},
),
],
),
],
),
],
style={
"borderRadius": "18px",
"padding": "32px",
"marginTop": "12px",
"marginBottom": "12px",
"marginLeft": "50px",
"marginRight": "50px",
},
className="responsive-tabs", # <-- add class
),
],
style={
"fontFamily": "Inter",
"backgroundColor": "#ffffff",
"minHeight": "100vh",
},
),
],
)
# Callbacks for interactivity
# -- helper utilities to consolidate duplicated callback logic --
def _get_filtered_top_n_from_duckdb(
slider_value, group_col, top_n, view="all_downloads"
):
"""
Query DuckDB directly to get top N entries with metadata
This minimizes data transfer by doing aggregation in DuckDB
"""
# Build time filter clause
time_clause = ""
if slider_value and len(slider_value) == 2:
start = pd.to_datetime(slider_value[0], unit="s")
end = pd.to_datetime(slider_value[1], unit="s")
time_clause = f"WHERE time >= '{start}' AND time <= '{end}'"
# If grouping by country, group by the transformed country column
if group_col == "org_country_single":
group_expr = """CASE
WHEN org_country_single IN ('HF', 'United States of America') THEN 'United States of America'
WHEN org_country_single IN ('International', 'Online', 'Online?') THEN 'International/Online'
ELSE org_country_single
END"""
else:
group_expr = group_col
# Build a lookup for author -> country mapping
# When grouping by derived_author, we need to find the country where derived_author = author
if group_col == "derived_author":
query = f"""
WITH base_data AS (
SELECT
{group_expr} AS group_key,
CASE
WHEN org_country_single IN ('HF', 'United States of America') THEN 'United States of America'
WHEN org_country_single IN ('International', 'Online', 'Online?') THEN 'International/Online'
ELSE org_country_single
END AS org_country_single,
author,
derived_author,
merged_country_groups_single,
merged_modality,
downloads,
model
FROM {view}
{time_clause}
),
-- Create a lookup table for derived_author -> country
author_country_lookup AS (
SELECT DISTINCT
author,
FIRST_VALUE(org_country_single) OVER (PARTITION BY author ORDER BY downloads DESC) AS author_country
FROM base_data
WHERE author IS NOT NULL
),
total_downloads_cte AS (
SELECT SUM(downloads) AS total_downloads_all
FROM base_data
),
top_items AS (
SELECT
b.group_key AS name,
SUM(b.downloads) AS total_downloads,
ROUND(SUM(b.downloads) * 100.0 / t.total_downloads_all, 2) AS percent_of_total,
COALESCE(acl.author_country, ANY_VALUE(b.org_country_single)) AS org_country_single,
ANY_VALUE(b.author) AS author,
ANY_VALUE(b.derived_author) AS derived_author,
ANY_VALUE(b.merged_country_groups_single) AS merged_country_groups_single,
ANY_VALUE(b.merged_modality) AS merged_modality,
ANY_VALUE(b.model) AS model
FROM base_data b
CROSS JOIN total_downloads_cte t
LEFT JOIN author_country_lookup acl ON b.group_key = acl.author
GROUP BY b.group_key, acl.author_country, t.total_downloads_all
)
SELECT *
FROM top_items
ORDER BY total_downloads DESC
LIMIT {top_n};
"""
else:
query = f"""
WITH base_data AS (
SELECT
{group_expr} AS group_key,
CASE
WHEN org_country_single IN ('HF', 'United States of America') THEN 'United States of America'
WHEN org_country_single IN ('International', 'Online') THEN 'International/Online'
ELSE org_country_single
END AS org_country_single,
author,
derived_author,
merged_country_groups_single,
merged_modality,
downloads,
model
FROM {view}
{time_clause}
),
total_downloads_cte AS (
SELECT SUM(downloads) AS total_downloads_all
FROM base_data
),
top_items AS (
SELECT
b.group_key AS name,
SUM(b.downloads) AS total_downloads,
ROUND(SUM(b.downloads) * 100.0 / t.total_downloads_all, 2) AS percent_of_total,
ANY_VALUE(b.org_country_single) AS org_country_single,
ANY_VALUE(b.author) AS author,
ANY_VALUE(b.derived_author) AS derived_author,
ANY_VALUE(b.merged_country_groups_single) AS merged_country_groups_single,
ANY_VALUE(b.merged_modality) AS merged_modality,
ANY_VALUE(b.model) AS model
FROM base_data b
CROSS JOIN total_downloads_cte t
GROUP BY b.group_key, t.total_downloads_all
)
SELECT *
FROM top_items
ORDER BY total_downloads DESC
LIMIT {top_n};
"""
return con.execute(query).fetchdf()
def _leaderboard_callback_logic(
n_clicks,
slider_value,
current_label,
group_col,
filename,
default_label="▼ Show Top 50",
chip_color="#F0F9FF",
view="all_downloads",
derived_author_toggle=True,
):
# Normalize label on first load
if current_label is None:
current_label = default_label
# Determine top_n and next label
if n_clicks == 0:
top_n = 10
new_label = current_label
elif "Show Top 50" in current_label:
top_n, new_label = 50, "▼ Show Top 100"
elif "Show Top 100" in current_label:
top_n, new_label = 100, "▲ Show Less"
else:
top_n, new_label = 10, "▼ Show Top 50"
# Get filtered and aggregated data directly from DuckDB
df_filtered = _get_filtered_top_n_from_duckdb(
slider_value, group_col, top_n, view=view
)
# If the SQL query returned no rows, ask user to broaden date range
if df_filtered is None or df_filtered.empty:
msg = html.Div(
"No data found in this time range. Try broadening the download date range.",
style={"padding": "18px", "fontSize": "16px", "color": "#082030"},
)
return msg, new_label
# Process the already-filtered data - pass derived_author_toggle
df, download_df = get_top_n_leaderboard(
df_filtered, group_col, top_n, derived_author_toggle=derived_author_toggle
)
# If processing produced no rows, ask user to broaden date range
if df is None or (hasattr(df, "empty") and df.empty):
msg = html.Div(
"No data found in this time range. Try broadening the download date range.",
style={"padding": "18px", "fontSize": "16px", "color": "#082030"},
)
return msg, new_label
return render_table_content(
df, download_df, chip_color=chip_color, filename=filename
), new_label
# -- end helpers --
# --- Callback to store model attribution type ---
@app.callback(
Output("model-attribution-type", "data"),
Input("model-attribution-segmented", "value"),
)
def update_model_attribution_type(selected_value):
return selected_value
# Callbacks for interactivity (modularized)
@app.callback(
Output("top_countries-table", "children"),
Output("top_countries-toggle", "children"),
Input("top_countries-toggle", "n_clicks"),
Input("time-slider", "value"),
Input("selected-view", "data"),
Input("model-attribution-type", "data"),
State("top_countries-toggle", "children"),
)
def update_top_countries(
n_clicks, slider_value, selected_view, attribution_type, current_label
):
return _leaderboard_callback_logic(
n_clicks,
slider_value,
current_label,
group_col="org_country_single",
filename="top_countries",
default_label="▼ Show Top 50",
chip_color="#F0F9FF",
view=selected_view,
derived_author_toggle=(attribution_type == "uploader"),
)
@app.callback(
Output("top_developers-table", "children"),
Output("top_developers-toggle", "children"),
Input("top_developers-toggle", "n_clicks"),
Input("time-slider", "value"),
Input("selected-view", "data"),
Input("model-attribution-type", "data"),
State("top_developers-toggle", "children"),
)
def update_top_developers(
n_clicks, slider_value, selected_view, attribution_type, current_label
):
# Use derived_author if attribution_type == "uploader", else author
group_col = "derived_author" if attribution_type == "uploader" else "author"
return _leaderboard_callback_logic(
n_clicks,
slider_value,
current_label,
group_col=group_col,
filename="top_developers",
default_label="▼ Show Top 50",
chip_color="#F0F9FF",
view=selected_view,
derived_author_toggle=(attribution_type == "uploader"),
)
@app.callback(
Output("top_models-table", "children"),
Output("top_models-toggle", "children"),
Input("top_models-toggle", "n_clicks"),
Input("time-slider", "value"),
Input("selected-view", "data"),
Input("model-attribution-type", "data"),
State("top_models-toggle", "children"),
)
def update_top_models(
n_clicks, slider_value, selected_view, attribution_type, current_label
):
return _leaderboard_callback_logic(
n_clicks,
slider_value,
current_label,
group_col="model",
filename="top_models",
default_label="▼ Show More",
chip_color="#F0F9FF",
view=selected_view,
derived_author_toggle=(attribution_type == "uploader"),
)
@app.callback(
Output("time-slider", "thumbChildren"),
Input("time-slider", "value"),
)
def update_thumb_labels(values):
return get_thumb_labels(values)
# --- Add callback to update selected view based on segmented control ---
@app.callback(
Output("selected-view", "data"),
Input("segmented", "value"),
)
def update_selected_view(seg_value):
if seg_value == "filtered-downloads":
return "one_year_rolling"
return "all_downloads"
# Run the app
if __name__ == "__main__":
app.run(debug=True)
|