This chart displays fine via bokeh server on my local browser, but on heroku it just opens a browser window without showing the chart. The log file doesn’t throw up any errors, so I think the Procfile and requirements.txt are fine. I know similar questions have been asked, and I have looked through those but still can’t work out what I am doing wrong. Can somebody help?
import pandas as pd
url = 'https://www.esri.cao.go.jp/en/stat/shouhi/shouhi2.xlsx'
cc = pd.read_excel(url, skiprows=5, usecols = 'A:P', index_col=0)
cc = cc.dropna()
cc.index = pd.to_datetime(cc.index, format = "%Y00%m%d")
unnamed = [col for col in cc if 'Unnamed' in col]#
cc.drop(columns=unnamed, inplace=True)
cc.rename_axis('Date', axis=0, inplace=True)
url = 'https://www.esri.cao.go.jp/en/stat/shouhi/shouhi3.xlsx'
px = pd.read_excel(url, skiprows=3, usecols = 'A:T', index_col=0)
px = px.dropna()
px.index = pd.to_datetime(px.index, format = "%Y00%m%d")
unnamed = [col for col in px if 'Unnamed' in col]#
px.drop(columns=unnamed, inplace=True)
px['Weighted average'] = (-5 * (px['低下する_▲５％以上']/(100 - px['分からない']))) + (-3.5 * (px['低下する_▲５％未満～▲２％以上']/(100 - px['分からない']))) + (-1 * (px['低下する_▲２％未満']/(100 - px['分からない']))) + (5 * (px['上昇する_５％以上']/(100 - px['分からない']))) + (3.5 * (px['上昇する_２％以上～５％未満']/(100 - px['分からない']))) + (1 * (px['上昇する_２％未満']/(100 - px['分からない'])))
px.rename_axis('Date', axis=0, inplace=True)
cc_recent = pd.merge(px, cc, on='Date', how='left')
from bokeh.plotting import figure, curdoc
#from bokeh.plotting import figure, show
from bokeh.models import ColumnDataSource
from bokeh.models import DatetimeTickFormatter, NumeralTickFormatter
from bokeh.models import LinearAxis, Range1d
from bokeh.layouts import column
source = ColumnDataSource(cc_recent)
p = figure(sizing_mode="stretch_both")
p.y_range = Range1d(20, 50)
p.line(x='Date',
y='component indicators of Consumer Confidence Index_Overall livelihood',
source=source,
color='red',
legend_label='Consumer confidence, livelihood')
p.extra_y_ranges = {"right_axis": Range1d(5, 0)}
ax2 = LinearAxis(y_range_name = 'right_axis')
p.add_layout(ax2, 'right')
p.yaxis[1].axis_label_text_font_size = "15pt"
p.line(x='Date',
y='Weighted average',
source=source,
color='blue',
y_range_name = 'right_axis',
legend_label="Consumer inflation expectations, inverted")
p.title.text = 'Japan, consumer confidence and inflation expectations'
p.title_location = "above"
p.title.text_font_size = "25px"
p.title.text_font_style = 'bold'
p.yaxis.formatter = NumeralTickFormatter(format="0,0")
p.xaxis.formatter = DatetimeTickFormatter(months="%b %Y")
p.legend.location = "bottom_left"
p.legend.label_text_font_size = '15pt'
curdoc().add_root(p)
Procfile
web: bokeh serve --port=$PORT --allow-websocket-origin=jp-consumer.herokuapp.com --address=0.0.0.0 --use-xheaders jp_cc_trial.py
Log
-----> Building on the Heroku-20 stack
-----> Determining which buildpack to use for this app
-----> Python app detected
-----> Using Python version specified in runtime.txt
-----> Installing python-3.8.12
-----> Installing pip 21.3.1, setuptools 57.5.0 and wheel 0.37.0
-----> Installing SQLite3
-----> Installing requirements with pip
Collecting bokeh==2.4.2
Downloading bokeh-2.4.2-py3-none-any.whl (18.5 MB)
Collecting Jinja2==3.0.3
Downloading Jinja2-3.0.3-py3-none-any.whl (133 kB)
Collecting MarkupSafe==2.0.1
Downloading MarkupSafe-2.0.1-cp38-cp38-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl (30 kB)
Collecting numpy==1.21.4
Downloading numpy-1.21.4-cp38-cp38-manylinux_2_12_x86_64.manylinux2010_x86_64.whl (15.7 MB)
Collecting packaging==21.3
Downloading packaging-21.3-py3-none-any.whl (40 kB)
Collecting pandas==1.3.5
Downloading pandas-1.3.5-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (11.5 MB)
Collecting Pillow==8.4.0
Downloading Pillow-8.4.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (3.1 MB)
Collecting pyparsing==3.0.6
Downloading pyparsing-3.0.6-py3-none-any.whl (97 kB)
Collecting python-dateutil==2.8.2
Downloading python_dateutil-2.8.2-py2.py3-none-any.whl (247 kB)
Collecting pytz==2021.3
Downloading pytz-2021.3-py2.py3-none-any.whl (503 kB)
Collecting PyYAML==6.0
Downloading PyYAML-6.0-cp38-cp38-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl (701 kB)
Collecting requests==2.26.0
Downloading requests-2.26.0-py2.py3-none-any.whl (62 kB)
Collecting six==1.16.0
Downloading six-1.16.0-py2.py3-none-any.whl (11 kB)
Collecting tornado==6.1
Downloading tornado-6.1-cp38-cp38-manylinux2010_x86_64.whl (427 kB)
Collecting typing_extensions==4.0.1
Downloading typing_extensions-4.0.1-py3-none-any.whl (22 kB)
Collecting charset-normalizer~=2.0.0
Downloading charset_normalizer-2.0.9-py3-none-any.whl (39 kB)
Collecting idna<4,>=2.5
Downloading idna-3.3-py3-none-any.whl (61 kB)
Collecting certifi>=2017.4.17
Downloading certifi-2021.10.8-py2.py3-none-any.whl (149 kB)
Collecting urllib3<1.27,>=1.21.1
Downloading urllib3-1.26.7-py2.py3-none-any.whl (138 kB)
Installing collected packages: six, pyparsing, MarkupSafe, urllib3, typing-extensions, tornado, PyYAML, pytz, python-dateutil, Pillow, packaging, numpy, Jinja2, idna, charset-normalizer, certifi, requests, pandas, bokeh
Successfully installed Jinja2-3.0.3 MarkupSafe-2.0.1 Pillow-8.4.0 PyYAML-6.0 bokeh-2.4.2 certifi-2021.10.8 charset-normalizer-2.0.9 idna-3.3 numpy-1.21.4 packaging-21.3 pandas-1.3.5 pyparsing-3.0.6 python-dateutil-2.8.2 pytz-2021.3 requests-2.26.0 six-1.16.0 tornado-6.1 typing-extensions-4.0.1 urllib3-1.26.7
-----> Discovering process types
Procfile declares types -> web
-----> Compressing...
Done: 107.1M
-----> Launching...
Released v3
https://jp-consumer.herokuapp.com/ deployed to Heroku
Build finished