Issue Running in Pycharm Console

Dash Python
1

Hi, I’m trying to use the Pycharm debug console in order to run Dash apps. I’ve had success in the past while running Dash apps in the console, getting a result such as:

Dash is running on http://127.0.0.1:8050/

  • Serving Flask app ‘app’
  • Debug mode: on

This is what would be printed out when I select to “Run File in Python Console” through Pycharm.

I am currently setting up a brand-new system (without my old system to compare to), and running into an issue. When I run the following code;

# Run this app with `python app.py` and
# visit http://127.0.0.1:8050/ in your web browser.


from dash import Dash, html, dcc
import plotly.express as px
import pandas as pd

app = Dash(__name__)

# assume you have a "long-form" data frame
# see https://plotly.com/python/px-arguments/ for more options
df = pd.DataFrame({
    "Fruit": ["Apples", "Oranges", "Bananas", "Apples", "Oranges", "Bananas"],
    "Amount": [4, 1, 2, 2, 4, 5],
    "City": ["SF", "SF", "SF", "Montreal", "Montreal", "Montreal"]
})

fig = px.bar(df, x="Fruit", y="Amount", color="City", barmode="group")

app.layout = html.Div(children=[
    html.H1(children='Hello Dash'),

    html.Div(children='''
        Dash: A web application framework for your data.
    '''),

    dcc.Graph(
        id='example-graph',
        figure=fig
    )
])

if __name__ == '__main__':
    app.run(debug=True)

(this is just some basic boilerplate code from the plotly website).

Running this code in the console I get the following result:
<IPython.lib.display.IFrame at 0x1c75fbffe50>

The code terminates after printing out this one line. Running through the terminal or running in a Anaconda shell, I get the expected behavior of the code starting out as expected, but for some reason running in the console is giving me an issue. I haven’t gotten this issue running in the console in the past, so I believe there should be a way to fix it.

I am using the most up to date Dash version.

2

Hey @nshah_ft welcome to the forums.

Hard to tell, maybe the Pycharm version? I never had any problems with Pycharm, currently I’m using PyCharm 2022.2.1 (Community Edition).

3

No unfortunately not. I downgraded to this version but it still didn’t work. I’m curious what exactly is being printed?

<IPython.lib.display.IFrame at 0x1c75fbffe50>

The python code isn’t failing with any errors. I don’t really see any documentation on this type of “IFrame” so i’m confused what it could be.

4

Have you setup an interpreter for the app?

5

Hi, yes I have. I don’t believe the code would execute at all if there was no interpreter set up.

6

Hmm, perhaps trying again with a new interpreter, dont inherit anything.