Unable to plot image in rasa-x

[Deprecated] Rasa X Community Edition
1

Hi,

I want to simply create a plot using actions.py

I am getting below error:

Exception occurred while handling uri: 'http://app:5055/webhook'
Traceback (most recent call last):
  File "/opt/venv/lib/python3.8/site-packages/sanic/app.py", line 931, in handle_request
    response = await response
  File "/opt/venv/lib/python3.8/site-packages/rasa_sdk/endpoint.py", line 104, in webhook
    result = await executor.run(action_call)
  File "/opt/venv/lib/python3.8/site-packages/rasa_sdk/executor.py", line 398, in run
    action(dispatcher, tracker, domain)
  File "/app/actions/actions.py", line 83, in run
    fig.savefig("./actions/neww.png")
  File "/opt/venv/lib/python3.8/site-packages/matplotlib/figure.py", line 2311, in savefig
    self.canvas.print_figure(fname, **kwargs)
  File "/opt/venv/lib/python3.8/site-packages/matplotlib/backend_bases.py", line 2210, in print_figure
    result = print_method(
  File "/opt/venv/lib/python3.8/site-packages/matplotlib/backend_bases.py", line 1639, in wrapper
    return func(*args, **kwargs)
  File "/opt/venv/lib/python3.8/site-packages/matplotlib/backends/backend_agg.py", line 510, in print_png
    mpl.image.imsave(
  File "/opt/venv/lib/python3.8/site-packages/matplotlib/image.py", line 1611, in imsave
    image.save(fname, **pil_kwargs)
  File "/opt/venv/lib/python3.8/site-packages/PIL/Image.py", line 2237, in save
    fp = builtins.open(filename, "w+b")
PermissionError: [Errno 13] Permission denied: './actions/neww.png'

Here is my actions.py file:

class ActionForecastRisk(Action):

    def name(self) -> Text:
        return "action_forecast_xyz"

    def run(self, dispatcher: CollectingDispatcher,
            tracker: Tracker,
            domain: Dict[Text, Any]) -> List[Dict[Text, Any]]:

        import seaborn as sns
        import matplotlib.pyplot as plt

        l = [41, 44, 46, 46, 47, 47, 48, 48, 49, 51, 52, 53, 53, 53, 53, 55, 55, 55,
            55, 56, 56, 56, 56, 56, 56, 57, 57, 57, 57, 57, 57, 57, 57, 58, 58, 58,
            58, 59, 59, 59, 59, 59, 59, 59, 59, 60, 60, 60, 60, 60, 60, 60, 60, 61,
            61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 62, 62, 62, 62, 62, 62, 62, 62,
            62, 63, 63, 63, 63, 63, 63, 63, 63, 63, 64, 64, 64, 64, 64, 64, 64, 65,
            65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 66, 66, 66, 66, 66, 66, 66,
            67, 67, 67, 67, 67, 67, 67, 67, 68, 68, 68, 68, 68, 69, 69, 69, 70, 70,
            70, 70, 71, 71, 71, 71, 71, 72, 72, 72, 72, 73, 73, 73, 73, 73, 73, 73,
            74, 74, 74, 74, 74, 75, 75, 75, 76, 77, 77, 78, 78, 79, 79, 79, 79, 80,
            80, 80, 80, 81, 81, 81, 81, 83, 84, 84, 85, 86, 86, 86, 86, 87, 87, 87,
            87, 87, 88, 90, 90, 90, 90, 90, 90, 91, 91, 91, 91, 91, 91, 91, 91, 92,
            92, 93, 93, 93, 94, 95, 95, 96, 98, 98, 99, 100, 102, 104, 105, 107, 108,
            109, 110, 110, 113, 113, 115, 116, 118, 119, 121]

        plt = sns.distplot(l, kde=True, rug=False)
        fig = plt.get_figure()
        fig.savefig("./actions/neww.png")


        msg = "hiiiii"
        dispatcher.utter_message(text=msg, image = "./actions/neww.png")
        return []
2

@ChrisRahme Any thoughts?

3

@nik202 Any thoughts?

4

You don’t have permissions to the file.

Try creating an independent Python script which does that, do you have the same error?

Also try fig.savefig("neww.png")

What’s your OS? Rasa Version?

1 Like
5

@ChrisRahme I am unable to save file basically. I am doing that in actions.py as mentioned above. Is there any other method to generate plots/graphs and show?

I have deployed this using docker-compose on ubuntu machine and Rasa version is: 2.8.11 image

6

@Sajjadmanal are you using docker image? please share the code if you are? or some related file for the same.

@Sajjadmanal as expected :slight_smile: I have solution.

7

Okay please show me your Dockerfile or Docker Compose

8

This is docker-compose.override.yml file image

9

@Sajjadmanal mention user root in docker-compose.override.yml and it will sort your issue.

user: root

2 Likes
10

This is dockerfile:

image
image915×459 20.3 KB

11

@Sajjadmanal Trust me it will work, do spin the docker again.

Note: If there is any other error still action_server will show restarting, but this permission issue only come with user root rights.

1 Like
12

Trust Nik!

13

@Sajjadmanal and Chris too :slight_smile:

1 Like
14

Yes, that error is not there now. Thanks. But now, I am unable to see image. Here is the response on rasa-x:

image

15

@Sajjadmanal I have given the solution for the error issue " Permission denied" .

Some pointers for you:

Try first run the code in local mode (local machine) , install all the packages and libraries, while using requirements.txt and then try using the code in a server side. Good Luck!

Always mention me with @ and nik202.

16

@nik202 Thanks for the solution. At local too, the image gets stored properly and is viewable if I open the image. However, If I call it via rasa-x in the chat box, I get the same issue as above. Have raised a new issue for this one: Check here.