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Bottle server with WebSocket (without other third-party libraries)
Currently, as of my knowledge cutoff in September 2021, the Bottle framework itself does not provide native WebSocket support. To handle WebSocket connections in Bottle without relying on third-party libraries, you would need to implement the WebSocket protocol manually. The WebSocket protocol involRead more
Currently, as of my knowledge cutoff in September 2021, the Bottle framework itself does not provide native WebSocket support. To handle WebSocket connections in Bottle without relying on third-party libraries, you would need to implement the WebSocket protocol manually.
The WebSocket protocol involves an initial HTTP handshake and then transitioning to a persistent connection between the client and the server. This process requires managing the low-level details of the protocol, which can be quite complex.
However, I can provide you with an example using the Python
socket
module to create a simple WebSocket server within your Bottle application. Please note that this approach is a basic demonstration and may not be suitable for production use. Here’s an example of how you could modify your code:In this example, we manually handle the WebSocket handshake by constructing the necessary HTTP headers and sending them back to the client. The
ws()
function reads and sends WebSocket messages using the low-level socket operations.Keep in mind that manually implementing the WebSocket protocol can be error-prone and may not support all the features provided by third-party WebSocket libraries. If possible, using a well-maintained library like
See lessgevent-websocket
orwebsocket-server
is generally recommended for WebSocket functionality in a Bottle application.how to disable button clicks via .preventDefault()
The preventDefault() method is used to prevent the default behavior of an event, such as submitting a form or following a link. However, it does not disable the button or make it unclickable. It only prevents the default action associated with the event. If you want to disable the button and make itRead more
The
preventDefault()
method is used to prevent the default behavior of an event, such as submitting a form or following a link. However, it does not disable the button or make it unclickable. It only prevents the default action associated with the event.If you want to disable the button and make it unclickable, you can use a reactive variable to control the button’s state. Here’s an updated code snippet that demonstrates how to achieve this:
In this example, we use the
isButtonDisabled
reactive variable to control thedisabled
attribute of the button. By default, the button is not disabled (isButtonDisabled
isfalse
). When the button is clicked, thehandleClick
function is triggered. We check if the button is not disabled before performing any action. By callingevent.preventDefault()
, we prevent the default behavior of the click event.To disable the button, you can set
isButtonDisabled
totrue
in your code when necessary. For example, if you want to disable the button after the first click, you can modify thehandleClick
function as follows:By setting
isButtonDisabled.value
totrue
, the button will become disabled, and subsequent clicks will not trigger the action inside theif
statement.Remember to import the necessary dependencies (
See lessref
) and adjust the component name and any other dependencies according to your specific setup.How to create a small python code to get a list of participants of a teams call?
To retrieve the list of participants in an ongoing Microsoft Teams call using Python, you can utilize the Microsoft Graph API with the help of the requests library. Here's a code snippet that demonstrates how to achieve this: import requests # Microsoft Graph API endpoint for retrieving call particiRead more
To retrieve the list of participants in an ongoing Microsoft Teams call using Python, you can utilize the Microsoft Graph API with the help of the
requests
library. Here’s a code snippet that demonstrates how to achieve this:Before running the code, make sure you replace the following placeholders with your own values:
your_client_id
: Your Azure AD application ID (client ID).your_client_secret
: Your Azure AD application client secret.your_tenant_id
: Your Azure AD tenant ID.your_call_id
: The ID of the Teams call you want to retrieve participants for.Please note that you need the necessary permissions and valid Azure AD application credentials to access the Microsoft Graph API. Also, ensure that you have the
See lessrequests
library installed (pip install requests
) to make HTTP requestsundeclared variable in a do-while loop in C
In C, variable declarations should be placed outside the loop in which they are used. In your code, the variable sp is declared inside the do-while loop, making it inaccessible in the condition part of the loop. To fix the error, you need to declare the variable sp before the do-while loop: int sp;Read more
In C, variable declarations should be placed outside the loop in which they are used. In your code, the variable
sp
is declared inside thedo-while
loop, making it inaccessible in the condition part of the loop.To fix the error, you need to declare the variable
sp
before thedo-while
loop:By moving the declaration of
sp
outside the loop, it becomes accessible in both the loop body and the condition part of the loop.Now, the code will prompt the user to enter a valid number (greater or equal to 9) until the condition is satisfied.
Make sure you have the necessary header files included and the
See lessget_int
function defined or declared correctly before using it in your code.Cypress use clock between each test without visit again
It seems that the issue lies in the way Cypress handles the setInterval function and the clock. Currently, Cypress's cy.tick() function is not designed to advance the clock for intervals set using setInterval. To work around this limitation, you can use the cy.wait() command instead of cy.tick() toRead more
It seems that the issue lies in the way Cypress handles the
setInterval
function and the clock. Currently, Cypress’scy.tick()
function is not designed to advance the clock for intervals set usingsetInterval
.To work around this limitation, you can use the
cy.wait()
command instead ofcy.tick()
to advance the clock. Here’s an updated example of how you can modify your tests:By replacing
cy.tick()
withcy.wait()
, you can manually control the clock advancement and verify the expected behavior in your component.Please give this approach a try and let me know if it resolves the issue for you.
See lessHow to exclude @Bean from library configuration
@Configuration @Import({ClientConfig.class}) public class ValidatorsConfiguration { @Bean @Conditional(ExcludeBeanCondition.class) public Parser excludedParser() { // Return a dummy instance or null if you want to exclude the bean return null; } // Other beans and configuration... } In the example aRead more
In the example above, a new
Parser
bean calledexcludedParser()
is defined. The@Conditional(ExcludeBeanCondition.class)
annotation is used to conditionally include or exclude this bean based on the implementation of theExcludeBeanCondition
class.You need to create the
ExcludeBeanCondition
class implementing theCondition
interface. Here’s an example implementation that excludes the bean based on a specific condition:In the
ExcludeBeanCondition
class, you can define your custom logic to determine if the bean should be excluded. In this example, the bean will be excluded if the propertyexclude.bean
is set to"true"
.Remember to adjust the logic in
See lessExcludeBeanCondition
according to your specific conditions for excluding beans.How can I use another df to calculate a new variable in my df, using time intervals?
To calculate the new variable in your dataframe based on time intervals and information from another dataframe, you can use a combination of filtering and aggregation functions. Here's an example of how you can approach this task: library(dplyr) # Assuming your dataframes are named 'exposition' andRead more
To calculate the new variable in your dataframe based on time intervals and information from another dataframe, you can use a combination of filtering and aggregation functions. Here’s an example of how you can approach this task:
This code loops over each row in the
exposition
dataframe and performs the following steps:code_muni
,dt_concep
, anddata_nasc
values from the current row.pollution
dataframe based on thecode_muni
and the time interval.neg_to_7
values for the filtered data.sum
column in thepollution
dataframe for the matching rows.Note that this approach can be time-consuming if your dataframes are large. Consider optimizing it if needed, such as by using vectorized operations or parallel processing, depending on the size and complexity of your data.
See lessHow to prevent/stop scrolling on ngx-virtual-scroller on items replace?
To prevent scrolling on ngx-virtual-scroller when items are replaced or added, you can use the following approach: Create a flag variable in your component's code to keep track of whether scrolling should be enabled or disabled. For example, you can add a variable called scrollEnabled and initializeRead more
To prevent scrolling on ngx-virtual-scroller when items are replaced or added, you can use the following approach:
scrollEnabled
and initialize it totrue
.scrollEnabled
variable to thescrollable
input of the virtual scroller component. This will control whether scrolling is enabled based on the value ofscrollEnabled
.scrollEnabled
flag accordingly. If you want to lock/freeze the screen, setscrollEnabled
tofalse
. If you want to re-enable scrolling, setscrollEnabled
back totrue
.By setting
scrollEnabled
tofalse
, you disable scrolling in the virtual scroller component. After you have added or replaced the items, you can reset the scroll position if desired, and then setscrollEnabled
back totrue
to enable scrolling again.Note: Make sure you have a reference to the
ngx-virtual-scroller
component in your component code. You can useViewChild
to get the reference and call thescrollToIndex
method if needed.Click event not raised with Sendmessage
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Private Const WM_LBUTTONDOWN = &H201 Private Const WM_LBUTTONUP = &H202 ' Define a custom event Public Event CustomClick() PrivaRead more
setAllowsBackForwardNavigationGestures not working in flutter webview
import 'package:flutter/gestures.dart'; final _key = UniqueKey(); late final WebViewController webViewController; void initState() { super.initState(); webViewController = WebViewController(); if (webViewController is WebKitWebViewController) { (webViewController as WebKitWebViewController) .setAlloRead more
In the updated version of the
webview_flutter
plugin (version 4+), the way to enable swipe gestures for navigation has changed. Instead of using thegestureNavigationEnabled
property, you need to use thegestureRecognizers
property with aSet
of gesture recognizers.In the updated code, we’re using the
gestureRecognizers
property and providing a set of gesture recognizers. Specifically, we’re adding aVerticalDragGestureRecognizer
to enable vertical swipe gestures.Make sure to import
flutter/gestures.dart
at the top of your file to access the gesture recognizers.By adding the
See lessVerticalDragGestureRecognizer
, you should be able to enable swipe gestures for navigation on your iPhone device with the updated version of the plugin.