UPDATE_INTERVAL = 60 * 5
df = pd.read_csv('data.csv')
def fetch_data():
global df
df = pd.read_csv('data.csv')
print(df['Value'])
def refresh_data(period=UPDATE_INTERVAL):
"""Update the data every 'period' seconds"""
while True:
print('Refreshing the data from server')
fetch_data()
time.sleep(period)
# Run the function in another thread
def initialize_executor():
executor = ThreadPoolExecutor(max_workers=1)
executor.submit(refresh_data)
app = dash.Dash(
__name__,
meta_tags=[{"name": "viewport", "content": "width=device-width, initial-scale=1"}],
)
app.config['suppress_callback_exceptions'] = True
def serve_layout():
return html.Div(
children=df['Name']
)
app.layout = serve_layout
if __name__ == '__main__':
initialize_executor()
app.run_server(debug=False, host='127.0.0.1', port=8052)
I am trying to schedule data loading (from MySQL) with thread executor as shown in code above. However, the task is not executed when debug is set to false.
What am I doing wrong over here?
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