А вот запрошенный код, преобразованный из примера фильмов Bokey (Bokeh v1.1.0):
from tornado.ioloop import IOLoop
from bokeh.server.server import Server
from bokeh.application import Application
from bokeh.application.handlers.function import FunctionHandler
from os.path import dirname, join
import numpy as np
import pandas.io.sql as psql
import sqlite3 as sql
from bokeh.plotting import figure
from bokeh.layouts import layout, column
from bokeh.models import ColumnDataSource, Div
from bokeh.models.widgets import Slider, Select, TextInput
from bokeh.io import curdoc
from bokeh.sampledata.movies_data import movie_path
def make_document(doc):
conn = sql.connect(movie_path)
query = open(join(dirname(__file__), 'query.sql')).read()
movies = psql.read_sql(query, conn)
movies["color"] = np.where(movies["Oscars"] > 0, "orange", "grey")
movies["alpha"] = np.where(movies["Oscars"] > 0, 0.9, 0.25)
movies.fillna(0, inplace = True) # just replace missing values with zero
movies["revenue"] = movies.BoxOffice.apply(lambda x: '{:,d}'.format(int(x)))
with open(join(dirname(__file__), "razzies-clean.csv")) as f:
razzies = f.read().splitlines()
movies.loc[movies.imdbID.isin(razzies), "color"] = "purple"
movies.loc[movies.imdbID.isin(razzies), "alpha"] = 0.9
axis_map = {
"Tomato Meter": "Meter",
"Numeric Rating": "numericRating",
"Number of Reviews": "Reviews",
"Box Office (dollars)": "BoxOffice",
"Length (minutes)": "Runtime",
"Year": "Year",
}
desc = Div(text = open(join(dirname(__file__), "description.html")).read(), width = 800)
# Create Input controls
reviews = Slider(title = "Minimum number of reviews", value = 80, start = 10, end = 300, step = 10)
min_year = Slider(title = "Year released", start = 1940, end = 2014, value = 1970, step = 1)
max_year = Slider(title = "End Year released", start = 1940, end = 2014, value = 2014, step = 1)
oscars = Slider(title = "Minimum number of Oscar wins", start = 0, end = 4, value = 0, step = 1)
boxoffice = Slider(title = "Dollars at Box Office (millions)", start = 0, end = 800, value = 0, step = 1)
genre = Select(title = "Genre", value = "All",
options = open(join(dirname(__file__), 'genres.txt')).read().split())
director = TextInput(title = "Director name contains")
cast = TextInput(title = "Cast names contains")
x_axis = Select(title = "X Axis", options = sorted(axis_map.keys()), value = "Tomato Meter")
y_axis = Select(title = "Y Axis", options = sorted(axis_map.keys()), value = "Number of Reviews")
# Create Column Data Source that will be used by the plot
source = ColumnDataSource(data = dict(x = [], y = [], color = [], title = [], year = [], revenue = [], alpha = []))
TOOLTIPS = [
("Title", "@title"),
("Year", "@year"),
("$", "@revenue")
]
p = figure(plot_height = 600, plot_width = 700, title = "", toolbar_location = None, tooltips = TOOLTIPS)
p.circle(x = "x", y = "y", source = source, size = 7, color = "color", line_color = None, fill_alpha = "alpha")
def select_movies():
genre_val = genre.value
director_val = director.value.strip()
cast_val = cast.value.strip()
selected = movies[
(movies.Reviews >= reviews.value) &
(movies.BoxOffice >= (boxoffice.value * 1e6)) &
(movies.Year >= min_year.value) &
(movies.Year <= max_year.value) &
(movies.Oscars >= oscars.value)
]
if (genre_val != "All"):
selected = selected[selected.Genre.str.contains(genre_val) == True]
if (director_val != ""):
selected = selected[selected.Director.str.contains(director_val) == True]
if (cast_val != ""):
selected = selected[selected.Cast.str.contains(cast_val) == True]
return selected
def update():
df = select_movies()
x_name = axis_map[x_axis.value]
y_name = axis_map[y_axis.value]
p.xaxis.axis_label = x_axis.value
p.yaxis.axis_label = y_axis.value
p.title.text = "%d movies selected" % len(df)
source.data = dict(
x = df[x_name],
y = df[y_name],
color = df["color"],
title = df["Title"],
year = df["Year"],
revenue = df["revenue"],
alpha = df["alpha"],
)
controls = [reviews, boxoffice, genre, min_year, max_year, oscars, director, cast, x_axis, y_axis]
for control in controls:
control.on_change('value', lambda attr, old, new: update())
inputs = column(*controls)
l = layout([
[desc],
[inputs, p],
])
update() # initial load of the data
doc.add_root(l)
doc.title = "Movies"
io_loop = IOLoop.current()
server = Server(applications = {'/': Application(FunctionHandler(make_document))}, io_loop = io_loop, port = 5001)
server.start()
server.show('/')
io_loop.start()