The current usual workflow is to a) modify the code, 2) stop the justpy service, 3) restart the service and finally reload the webpage. I was wondering if it is possible to bypass/short circuit this flow. Is it possible the page gets rendered automatically when the source is modified?

Also, thanks for the great package :).

Would there be any way to execute a function after x seconds of inactivity?

For example, a timer that would start after the mouse has stopped moving and after x number of seconds of inactivity a function is executed.

Originally posted by @knoxvilledatabase in https://github.com/elimintz/justpy/issues/59#issuecomment-622236707

Today on a new deploy I did :

pip3 install justpy

but ends up failing because:

ERROR: Cannot install justpy==0.0.5, justpy==0.0.6, justpy==0.0.7, justpy==0.0.8, justpy==0.0.9, justpy==0.1.0, justpy==0.1.1, justpy==0.1.2, justpy==0.1.3, justpy==0.1.4 and justpy==0.1.5 because these package versions have conflicting dependencies.

The conflict is caused by:
    justpy 0.1.5 depends on demjson>=2.2.4
    justpy 0.1.4 depends on demjson>=2.2.4
    justpy 0.1.3 depends on demjson>=2.2.4
    justpy 0.1.2 depends on demjson>=2.2.4
    justpy 0.1.1 depends on demjson>=2.2.4
    justpy 0.1.0 depends on demjson>=2.2.4
    justpy 0.0.9 depends on demjson>=2.2.4
    justpy 0.0.8 depends on demjson>=2.2.4
    justpy 0.0.7 depends on demjson>=2.2.4
    justpy 0.0.6 depends on demjson>=2.2.4
    justpy 0.0.5 depends on demjson>=2.2.4

To fix this you could try to:
1. loosen the range of package versions you've specified
2. remove package versions to allow pip attempt to solve the dependency conflict

it is an open issue at demjson repo:

https://github.com/dmeranda/demjson/issues/40

Downgrading to setuptools 57.5.0 it des not work, it installs but while doing:

import justpy

gives:

import justpy
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/data/giodegas/dev/AQ2009/myenv/lib/python3.8/site-packages/justpy/__init__.py", line 1, in <module>
    from .justpy import *
  File "/data/giodegas/dev/AQ2009/myenv/lib/python3.8/site-packages/justpy/justpy.py", line 13, in <module>
    from .chartcomponents import *
  File "/data/giodegas/dev/AQ2009/myenv/lib/python3.8/site-packages/justpy/chartcomponents.py", line 2, in <module>
    import demjson
  File "/data/giodegas/dev/AQ2009/temp/demjson/demjson.py", line 645
    class json_int( (1L).__class__ ):    # Have to specify base this way to satisfy 2to3
                      ^
SyntaxError: invalid syntax

@elimintz what can I do now? Thank you for your support.

https://www.ag-grid.com/javascript-grid-data-update-transactions/ hi i'm looking for a guide to use the grid API applyTransaction(transaction) to correctly update the data in my grid. i read your example :https://justpy.io/grids_tutorial/grid_api/ but in this example the functions: self.grid.run_api('selectAll()', msg.page) and self.grid.run_api('deselectAll()', msg.page) don't need any parameter. applyTransaction(transaction) instead need the transaction object, can you show me how to pass it correctly? thanks for the help

We would like to request all clients to reload a page when a user makes a specific change on our database but we don't want to put the entire page in a shared component because it's a lot of data.

Would you have any ideas for how to solve this?

I have deployed a web page on my intranet using Justpy (which is great by the way!), but I have a couple of clients that do not have access internet access, and they cannot display the web page, as soon as I enable internet access they are able to display the page correctly, but I cannot leave internet access enabled.

Any work around or setting I can modify to make a justpy page work without internet access?

I'd made a programming error in a button handler. However no exception appeared and the program kept running (without the intended behaviour obviously). Also in the PyCharm no exception was caught.

BTW JustPy is a godsend. Please promote it more!

One of the apps I'm replacing with JustPy requires a signature pad component. I noticed that there is already a Vue Signature Pad Component (https://github.com/neighborhood999/vue-signature-pad). Is this something you would be interested in having within the JustPy framework?

It appears background input checkers are sometimes backspacing after the user enters in a char, then it appears again. This happens when typing moderately fast. It sometimes even misses capturing the user input altogether.

This is very disconcerting. Is there some way of affecting this behavior?

@sandeep-gh in #389 suggested that the following Unit Test should work:

'''
Created on 2022-08-30

@author: 
@author: wf
'''
import justpy as jp
from starlette.testclient import TestClient

@jp.SetRoute("/bye", name = "bye")
def bye_function(_request):
    wp = jp.WebPage()
    wp.add(jp.P(text='Hello there!', classes='text-5xl m-2'))
    return wp

@jp.SetRoute("/hello", name = "hello")
def hello_function(request):
    wp = jp.WebPage()
    wp.add(jp.P(text='Hello there!', classes='text-5xl m-2'))
    print("request  = ", request.url_for("bye"))
    return wp

app = jp.app
client = TestClient(app)
client.get("/hello")

Since few days, I got a strange behavior from a justpy application. It starts looping over the main function, with this error at the console:

WARNING:  Unsupported upgrade request.
WARNING h11_impl: Unsupported upgrade request.

I guess is due to some changes in the underlining library h11.

What can I do to downgrade to the previous stable situation?

Thank's.

First of all, I apologize if the way/form of reporting a possible bug is not correct: it's the first time I've done it.

In this Def (located in justpy_app.py):

def handle_session_cookie(self,request) -> typing.Union[bool, Response]:
        # Handle web requests
        session_cookie = request.cookies.get(SESSION_COOKIE_NAME)   
        #print(cookie_signer.unsign(session_cookie).decode("utf-8"))
        new_cookie=None
        if SESSIONS:
            new_cookie = False
            if session_cookie:
                try:
                    session_id = cookie_signer.unsign(session_cookie).decode("utf-8")
                except:
                    return PlainTextResponse("Bad Session") <==============
                request.state.session_id = session_id
                request.session_id = session_id
            else:
                # Create new session_id
                request.state.session_id = str(uuid.uuid4().hex)
                request.session_id = request.state.session_id
                new_cookie = True
                logging.debug(f"New session_id created: {request.session_id}")
        return new_cookie

If you try to have session_id, in this Def, if you need the case in which JustPy should return an error in the session through the writing "Bad Session", now return this error:

AttributeError: 'Request' object has no attribute 'session_id'

currently a few resources are on the parent folder of the project

• https://github.com/justpy-org/justpy/blob/master/papillon.jpg
• https://github.com/justpy-org/justpy/tree/master/components

but are only used by some examples. These resources should be moved to the examples folder or to the example itself.

For the static_test the problem of the static folder in the context of the demo_browser needs to be solved. https://github.com/justpy-org/justpy/blob/7e49c1dc69c490cc17a47f66d0ccad329c7383a3/examples/tutorial/static/static_test.py#L4-L7

The url_for in this template

https://github.com/justpy-org/justpy/blob/48c3e857461ebeeea05ac65ebe7f72ff49ae63af/justpy/templates/main.html

resulted in this blocked loading mixed active content error

https://developer.mozilla.org/en-US/docs/Web/Security/Mixed_content#warnings_in_firefox_web_console

which was caused by

https://github.com/encode/starlette-example/issues/6

but seemed to be fixed in

https://github.com/encode/uvicorn/issues/369

However, this is still not resolved in JustPy which make an advanced component like this one

https://justpy.io/tutorial/advanced_components/#fullcalendar-example

unable to be deployed in public server.

Is there a way to make url_for return an https instead of http?

Add support for tree-styled data in aggrid. See here for aggrid documentation of the feature.

I think we just need to update the logic here -> https://github.com/justpy-org/justpy/blob/master/justpy/templates/js/vue/aggrid.js#L18. The following code should work,

if (key==='getDataPath')) { eval('def[key] = ' + def[key]); }

the tutorial https://justpy.io/tutorial/model_and_data/ introduces the model and data attribute and shows how to globally access data via wp. This should not be encouraged any more. The opposite is the case so the hint

Note: Any element, a Div for example, may have a data attribute and be used in a model attribute, not just a WebPage.

currently is misleading. There should be a recommendation to allways keep the data attribute in a local scope see e.g. https://github.com/WolfgangFahl/pyJustpyWidgets/issues/15 and the example below which implement proper information hiding.

class SimpleCheckbox(jp.Div):
    """
    a simple Checkbox
    """ 
    def __init__(self,a,labelText,**kwargs):
        """
        create a simple checkbox with the given label
        """
        jp.Div.__init__(self,a=a,classes="col-1",data={'checked': False})
        self.checkbox=jp.Input(a=self,type="checkbox",classes="form-check-input", model=[self, 'checked'],**kwargs)
        self.label=jp.Label(a=self,text=labelText)
        
    def check(self,checked:bool):
        self.data["checked"]=checked
        
    def isChecked(self)->bool:
        return self.data["checked"]