TestMu 2025 - The Largest Virtual Software Testing Conference is Back | 50,000+ Attendees

How to use remove_listener method in Playwright Python

Best Python code snippet using playwright-python

web_socket.py

...13        print("WebSocket opened")14 15    def on_close(self):16        print("WebSocket closed")17        self.application.outq.remove_listener(self.sec_num)18        # self.application.pc.remove_event_listener(self)19    def on_message(self, message):20        #"op_type;amount;acc_local;acc_remote"21        # print message22        self.sec_num = self.application.outq.add_listener(self)23        info = json.loads(message)24        # {âestadoâ: <âcomienzoâ|âconfirmacionâ|âerrorâ>, 25        #  âidâ: nId, âtipoâ: <âconsignarâ|âretirarâ>, 26        #  âmontoâ: nMonto, 27        #  âcuentaDestinoâ: nCDestino, âcuentaOrigenâ: nCOrigen}28        # acc_num = 129        header = 'comienzo'30        # op_type = 'transaccion'31        # amount = 400032        # code = self.sec_num33        message = {u'id':self.sec_num,34                   u'estado':header, 35                   u'tipo':info['op_type'],36                   u'monto':info['amount'],37                   u'cuentaOrigen':info['acc_local'],38                   u'cuentaDestino':info['acc_remote'],39                   u'idCliente':int(self.get_cookie("authcookie").split('-')[0])}40        print message41        self.application.outq.init_transaction(message)42        # self.application.pc.publish_message(message)asdsdfsdfsdfsdfs.jhdkhgdhhkghjghghjf43    def notify_client(self, msg):44        self.write_message(msg)45        self.application.outq.remove_listener(self.sec_num)46class WebSocketHandlerAssociate(tornado.websocket.WebSocketHandler):47    def open(self, *args, **kwargs):48        # self.application.pc.add_event_listener(self)49        print("WebSocket opened")50 51    def on_close(self):52        print("WebSocket closed")53        self.application.outq.remove_listener(self.sec_num)54        # self.application.pc.remove_event_listener(self)55    def on_message(self, message):56        #"op_type;amount;acc_local;acc_remote"57        # print message58        self.sec_num = self.application.outq.add_listener(self)59        info = json.loads(message)60        #{âestadoâ: <âcomienzoâ|âconfirmacionâ|âerrorâ>âidâ: nId, âtipoâ: âasociarâ, âcuentaOrigenâ: nCOrigen, 61        #âbancoOrigenâ: <âbancandesâ|âllamabankâ> âcuentaDestinoâ: nCDestino, âbancoDestinoâ:  <âbancandesâ|âllamabankâ>, 62        #ânombreEmpleadoâ:nNombre, âvalorâ: nValor, âfrecuenciaâ:<âmensualâ|âquincenalâ>}63        # acc_num = 164        header = 'comienzo'65        # op_type = 'transaccion'66        # amount = 400067        # code = self.sec_num68        if  info['frec'] is 1:69            frecuencia = 'mensual'70        else:71            frecuencia = 'quincenal'72        message = {u'id':self.sec_num,73                   u'estado':header, 74                   u'tipo':'asociar',75                   u'valor':info['salario'],76                   u'frecuencia':frecuencia,77                   u'cuentaOrigen':info['cuenta'],78                   'bancoOrigen':"llamabank",79                   'bancoDestino':'bancandes',80                   u'cuentaDestino':info['cuenta_empl'],81                   u'idCliente':int(self.get_cookie("authcookie").split('-')[0])}82        print message83        self.application.outq.init_associate(message)84        # self.application.pc.publish_message(message)asdsdfsdfsdfsdfs.jhdkhgdhhkghjghghjf85    def notify_client(self, msg):86        self.write_message(msg)87        self.application.outq.remove_listener(self.sec_num)88class WebSocketHandlerPay(tornado.websocket.WebSocketHandler):89    def open(self, *args, **kwargs):90        # self.application.pc.add_event_listener(self)91        print("WebSocket opened")92 93    def on_close(self):94        print("WebSocket closed")95        self.application.outq.remove_listener(self.sec_num)96        # self.application.pc.remove_event_listener(self)97    def on_message(self, message):98        #"op_type;amount;acc_local;acc_remote"99        # print message100        self.sec_num = self.application.outq.add_listener(self)101        info = json.loads(message)102        #{âestadoâ: <âcomienzoâ|âconfirmacionâ|âerrorâ>âidâ: nId, âtipoâ: âasociarâ, âcuentaOrigenâ: nCOrigen, 103        #âbancoOrigenâ: <âbancandesâ|âllamabankâ> âcuentaDestinoâ: nCDestino, âbancoDestinoâ:  <âbancandesâ|âllamabankâ>, 104        #ânombreEmpleadoâ:nNombre, âvalorâ: nValor, âfrecuenciaâ:<âmensualâ|âquincenalâ>}105        # acc_num = 1106        header = 'comienzo'107        # op_type = 'transaccion'108        # amount = 4000109        # code = self.sec_num110        # {u'numCuenta': 123, u'saldo': 6666666, u'estado': u'comienzo', u'id': u'fghiop', u'tipo': u'pagar'111        message = {u'id':self.sec_num,112                   u'estado':header, 113                   u'tipo':'pagar',114                   u'numCuenta':info['acc'],115                   u'idCliente':int(self.get_cookie("authcookie").split('-')[0])}116        print message117        self.application.outq.init_pay(message)118        # self.application.pc.publish_message(message)asdsdfsdfsdfsdfs.jhdkhgdhhkghjghghjf119    def notify_client(self, msg):120        self.write_message(msg)121        self.application.outq.remove_listener(self.sec_num)122class WebSocketHandlerOperations(tornado.websocket.WebSocketHandler):123    def open(self, *args, **kwargs):124        # self.application.pc.add_event_listener(self)125        print("WebSocket opened")126        self.sec_num = self.application.outq.add_listener(self)127    def on_close(self):128        print("WebSocket closed")129        self.application.outq.remove_listener(self.sec_num)130    def on_message(self, message):131        # print(message)132        # [{"name":"draw","value":1},133        #  {"name":"columns","value":134        # [{"data":"fecha","name":"","searchable":true,"orderable":true,"search":{"value":"","regex":false}},{"data":"tipo","name":"","searchable":true,"orderable":true,"search":{"value":"","regex":false}},{"data":"id_cliente","name":"","searchable":true,"orderable":true,"search":{"value":"","regex":false}},{"data":"valor","name":"","searchable":true,"orderable":true,"search":{"value":"","regex":false}}]},{"name":"order","value":[{"column":0,"dir":"asc"}]},{"name":"start","value":0},{"name":"length","value":10},135        #  {"name":"search","value":{"value":"","regex":false}}]136        full = json.loads(message)137        data = full['data']138        draw = data[0]139        columns = data[1]140        order = data[2]141        start = data[3]142        length = data[4]143        search = data[5]...

accessories.py

Source: accessories.py

...36        # pylint: disable=not-callable37        hass = args[0].hass38        nonlocal lastargs, remove_listener39        if remove_listener:40            remove_listener()41            lastargs = remove_listener = None42        lastargs = {'hass': hass, 'args': [*args]}43        remove_listener = track_point_in_utc_time(44            hass, call_later_listener,45            dt_util.utcnow() + timedelta(seconds=DEBOUNCE_TIMEOUT))46        logger.debug('%s: Start %s timeout', args[0].entity_id,47                     func.__name__.replace('set_', ''))48    remove_listener = None49    lastargs = None50    name = getmodule(func).__name__51    logger = logging.getLogger(name)52    return wrapper53class HomeAccessory(Accessory):54    """Adapter class for Accessory."""...

_inputsensor.py

Source: _inputsensor.py

...11"""12class keyboardsensor_base(bee.worker):13    def set_add_listener(self, add_listener):14        self.add_listener = add_listener15    def set_remove_listener(self, remove_listener):16        self.remove_listener = remove_listener17    def place(self):18        libcontext.socket(("evin", ("input", "keyboard")), socket_flag())19        libcontext.socket(("evin", "add_listener"), socket_single_required(self.set_add_listener))20        libcontext.socket(("evin", "remove_listener"), socket_single_required(self.set_remove_listener))21        libcontext.plugin(("bee", "init"), plugin_single_required(self.enable))22    def enable(self):23        pass24    def disable(self):25        pass26"""    27class keyboardsensor_pulse(keyboardsensor_base):28  keycode = variable("str")29  parameter(keycode, "SPACE")  30  def __init__(self, keycode):31    self.pulses = []32    keyboardsensor_base.__init__(self, keycode)33    self.pressed = False34  def _pulse(self, channel, message):35    count = 136    if channel[1] == "keyreleased" and self.pressed == False: count = 237    if channel[1] == "keypressed" and self.pressed == True: count = 238    for n in range(count):39      for p in self.pulses: p()    40      self.pressed = not self.pressed41  def add_pulse(self, pulse):42    assert callable(pulse)43    self.pulses.append(pulse)44  def place(self):45    libcontext.socket("eventhandler", socket_single_required(self.set_eventhandler))  46    libcontext.socket(("input", "keyboard", "keyreleased"), socket_flag())47    if self.keycode not in asciilist:48      libcontext.socket(("input", "keyboard", "extended"), socket_flag())49    libcontext.socket("pulse", socket_supplier(self.add_pulse))50    keyboardsensor_base.place(self)    51  def enable(self):52    self.eventhandler.new_processor(("keyboard", "keypressed", self.keycode), self._pulse)53    self.eventhandler.new_processor(("keyboard", "keyreleased", self.keycode), self._pulse)54  def disable(self):55    self.eventhandler.remove_processor(("keyboard", "keypressed", self.keycode), self._pulse)56    self.eventhandler.remove_processor(("keyboard", "keyreleased", self.keycode), self._pulse)57"""58class mousesensor_base(bee.worker):59    def set_add_listener(self, add_listener):60        self.add_listener = add_listener61    def set_remove_listener(self, remove_listener):62        self.remove_listener = remove_listener63    def place(self):64        libcontext.socket(("evin", ("input", "mouse")), socket_flag())65        libcontext.socket(("evin", "add_listener"), socket_single_required(self.set_add_listener))66        libcontext.socket(("evin", "remove_listener"), socket_single_required(self.set_remove_listener))67        libcontext.plugin(("bee", "init"), plugin_single_required(self.enable))68    def enable(self):69        pass70    def disable(self):71        pass72    def __del__(self):73        self.disable()74"""75class mousebuttonsensor_pulse(mousebuttonsensor_base):...

threaded_event_emitter.py

Source: threaded_event_emitter.py

...37            return self.pool.apply_async(f, args, kwargs)38        wrapped = super().once(event, wrapped)39        self.wrappers[event].append((f, wrapped))40        return wrapped41    def remove_listener(self, event_name, func):42        """ Wrap the remove to translate from function to wrapped43            function.44        """45        for w in self.wrappers[event_name]:46            if w[0] == func:47                self.wrappers[event_name].remove(w)48                return super().remove_listener(event_name, w[1])49        # if no wrapper exists try removing the function...

StackOverFlow community discussions

Questions

Discussion

How to type F5 to refresh a page using Playwright Python

playwright is timing out before running page.pause()

Using Playwright for Python, how do I select an option from a drop down list?

What are the differences between Python Playwright sync vs. async APIs?

How to get playwright working on a docker container and deploy it to AWS Lambda

Web-scraping JavaScript page with Python

How to use playwright and beautifulsoup on web page which has pagination?

playwright headless chromium can't find selector, but finds it in UI mode

How to open a new tab using Python Playwright by feeding it a list of URLs?

how to locate the elements which only appear when mouse move to the specific spot in playwright?

afaik, playwright uses a virtual keyboard and does not exactly send the same signal as a real keyboard to the browser application.

consider going native and using something closer to kernel like pyautogui, after you've focused you window:

import pyautogui
pyautogui.press('f5')

https://stackoverflow.com/questions/74260772/how-to-type-f5-to-refresh-a-page-using-playwright-python

That happens because your webpage did not load totally, you can set a timeout like:

page.goto('https://www.zameen.com/', timeout=100000)

Or you can even don't wait till your page is loaded and just navigate without waiting the page to be fully loaded with timeout=0

page.goto('https://www.zameen.com/', timeout=0)

https://stackoverflow.com/questions/74746473/playwright-is-timing-out-before-running-page-pause

After trying many different variants, I guessed a working syntax

handle.selectOption({"label": "Banana"})

https://stackoverflow.com/questions/64306147/using-playwright-for-python-how-do-i-select-an-option-from-a-drop-down-list

Have you tried to download it as Binary package?

Maybe you can go over this libasound.so.2 package page and see if you can download it.

wget https://vault.centos.org/centos/8/AppStream/aarch64/os/Packages/alsa-lib-1.2.5-4.el8.aarch64.rpm

When I searched within apt, ubuntu package tool I don't see anything there

root@21be95fca6e6:/# apt search libasound.so.2
Sorting... Done
Full Text Search... Done

For instance, Vim package would appears like below

root@21be95fca6e6:/# apt search vim           
Sorting... Done
Full Text Search... Done
apvlv/jammy 0.4.0-2 arm64
  PDF viewer with Vim-like behaviour

https://stackoverflow.com/questions/72292983/how-to-get-playwright-working-on-a-docker-container-and-deploy-it-to-aws-lambda

EDIT Sept 2021: phantomjs isn't maintained any more, either

EDIT 30/Dec/2017: This answer appears in top results of Google searches, so I decided to update it. The old answer is still at the end.

dryscape isn't maintained anymore and the library dryscape developers recommend is Python 2 only. I have found using Selenium's python library with Phantom JS as a web driver fast enough and easy to get the work done.

Once you have installed Phantom JS, make sure the phantomjs binary is available in the current path:

phantomjs --version
# result:
2.1.1

#Example To give an example, I created a sample page with following HTML code. (link):

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Javascript scraping test</title>
</head>
<body>
  <p id='intro-text'>No javascript support</p>
  <script>
     document.getElementById('intro-text').innerHTML = 'Yay! Supports javascript';
  </script> 
</body>
</html>

without javascript it says: No javascript support and with javascript: Yay! Supports javascript

#Scraping without JS support:

import requests
from bs4 import BeautifulSoup
response = requests.get(my_url)
soup = BeautifulSoup(response.text)
soup.find(id="intro-text")
# Result:
<p id="intro-text">No javascript support</p>

#Scraping with JS support:

from selenium import webdriver
driver = webdriver.PhantomJS()
driver.get(my_url)
p_element = driver.find_element_by_id(id_='intro-text')
print(p_element.text)
# result:
'Yay! Supports javascript'

You can also use Python library dryscrape to scrape javascript driven websites.

#Scraping with JS support:

import dryscrape
from bs4 import BeautifulSoup
session = dryscrape.Session()
session.visit(my_url)
response = session.body()
soup = BeautifulSoup(response)
soup.find(id="intro-text")
# Result:
<p id="intro-text">Yay! Supports javascript</p>

https://stackoverflow.com/questions/8049520/web-scraping-javascript-page-with-python

Doing something similar for a project of mine, this is how I would do it.

from playwright.sync_api import sync_playwright

posts = ['https://playwright.dev/','https://playwright.dev/python/',]

def scrap_post_info(context, post):
    page = context.new_page()
    page.goto(post)
    print(page.title())
    # do whatever scraping you need to
    page.close()

with sync_playwright() as p:
    browser = p.chromium.launch()
    context = browser.new_context()
    for post in posts:
        scrap_post_info(context, post)
        # some time delay

browser.close()

Thing is the code snippet from the playwright docs is more about opening a new page after clicking a link on an existing page. Since you already have the urls ready, you can just visit each page one by one, and do your scraping.

https://stackoverflow.com/questions/72123509/how-to-open-a-new-tab-using-python-playwright-by-feeding-it-a-list-of-urls

page.hover(selector[, options])

After that you can do

page.waitForSlector(selector,{timeout:6000})

And then do what you need for your elem. You can read this:

https://playwright.dev/docs/api/class-page#page-hover

https://stackoverflow.com/questions/71738836/how-to-locate-the-elements-which-only-appear-when-mouse-move-to-the-specific-spo

Blogs

Check out the latest blogs from LambdaTest on this topic:

30 Top Automation Testing Tools In 2022

The sky’s the limit (and even beyond that) when you want to run test automation. Technology has developed so much that you can reduce time and stay more productive than you used to 10 years ago. You needn’t put up with the limitations brought to you by Selenium if that’s your go-to automation testing tool. Instead, you can pick from various test automation frameworks and tools to write effective test cases and run them successfully.

How To Use CSS Contain Property To Optimize Browsers

Playwright End To End Testing Tutorial: A Complete Guide

It is essential for a team, when speaking about test automation, to take the time needed to think, analyze and try what will be the best tool, framework, and language that suits your team’s needs.

Complete Selenium WebDriver Tutorial: Guide to Selenium Test Automation

When it comes to web automation testing, there are a number of frameworks like Selenium, Cypress, PlayWright, Puppeteer, etc., that make it to the ‘preferred list’ of frameworks. The choice of test automation framework depends on a range of parameters like type, complexity, scale, along with the framework expertise available within the team. However, it’s no surprise that Selenium is still the most preferred framework among developers and QAs.

Different Types Of Locators In Selenium WebDriver

This article is a part of our Content Hub. For more in-depth resources, check out our content hub on Selenium Locators Tutorial.

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.