How to know the Chrome version on Heroku - python

I am using the Heroku Chrome buildpack and am wondering what version it is running. I am trying to use it with a webpage but the webpage tells me I can't use it because the site needs chrome version 60 or above.
However the chromedriver used with it is version 103 something.
Is there some update that needs to happen or is the code not going to work?

To start with you need to manually spin-off the google-chrome browser and accessing chrome://settings/help you need to check the browser version as follows and update the browser version if required:
Once your program successfully initiates the Google Chrome browsing context you can extract the browser version on the run, programatically.

Related

Getting site can not be reached error while opening site using selenium and c#

I am writing automation for one of the site. I am able to access that site in chrome when I open that site manually in chrome or incognito mode. But when I am trying to launch it using automation in any browser its giving me site can not be reached error
Below is my simple code -
ChromeOptions options = new ChromeOptions();
options.AddArguments("excludeSwitches", "enable-automation");
options.AddArguments("useAutomationExtension", "False");
options.AddArgument("incognito");
IWebDriver driver = new ChromeDriver(options);
Console.WriteLine("Test MY Site");
driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(60);
driver.Manage().Window.Maximize();
driver.Manage().Cookies.DeleteAllCookies();
driver.Navigate().GoToUrl("https://example.net");
I tried with Selenium C#, Selenium Python , Cypress etc. but getting same error.
I also tried to launch site in chrome, edge, firefox and safari there also getting same error.
Note- I am using latest version of chrome, latest version of selenium and windows 10. I also tried after downgrading selenium and chrome
I have also tried setting proxy manual and automatic. also tried with no proxy setting. Internet connection is not at all issue since site is working fine when I am using that site manually in chrome
I found undetected-chrome driver helps in this case but I did find exe for undetected-chromedriver in order to launch site
Please help

How to use normal chrome completely without chromedriver selenium python not duplicate

How to use normal chrome completely without chromedriver selenium python not duplicate.
I am using python 3.8.8,os is windows 7 ultimate with pycharm as
IDE and chrome version is around 96. and my problem is that whenever I use my python script to scrape a website it uses chromedriver and when I specify what's given below:
options = Options ()
options.add_argument(r"user-data-dir=my chrome path which is not Executable instead the user data")
#this works but when opening chrome it shows "browser is controlled by automated software" and changing it to normal chrome. Exe won't work
Sure it uses normal chrome with my credentials but it still needs chromedriver to work and when I delete the chromedriver it throw an error and when I go into selenium source code in a file called site.py(or sites.py) which I changed the variable self. executable to chrome.exe path and it worked and it won't show the message browser is controlled by automated software but it won't do anything , it is just stuck there and what I want to do is use chrome as the browser to scrape without chromedriver in my pc is it possible? If yes please tell me how should I go on to do it and you can ask for further Clarification and details and Thanks in advance
By default, selenium is detected as an automated software and is flagged by most websites, and the flag is unable to be removed. There are, however, external libraries that can be installed that can remove the flag.
There are options here to try to get around the default flag and hide the fact the browser is automated.
Edit
I understand the question further, and see that you want a more portable chrome option. Chrome driver is a very specific program controlled by selenium and must be used. There is no substitute. You can use Firefox driver or internet explorer, but a webdriver must be used (hence the name driver for driving the main browser). When you specify the directory for the Chrome binary, you aren’t removing the middleman of the chromedriver, only Specifying where chrome driver needs to look!
Using Selenium you won't be able to initiate/spawn a new Browsing Context i.e. Chrome Browser session without the ChromeDriver.
The Parts and Pieces
As a minimum requirement, the WebDriver i.e the ChromeDriver talks to a browser through a driver and the communication is two way:
WebDriver passes commands to the browser through the driver
Receives information back via the same route.
Hence using ChromeDriver is a mandatory requirement.

How to install Selenium (python) on a Apache Web Server?

I have up and running an Apache Server with Python 3.x installed already on it. Right now I am trying to run ON the server a little python program (let's say filename.py). But this python program uses the webdriver for Chrome from Selenium. Also it uses sleep from time (but I think this comes by default, so I figure it won't be a problem)
from selenium import webdriver
When I code this program for the first time on my computer, not only I had to write the line of code above but also to manually download the webdriver for Chrome and paste it on /usr/local/bin. Here is the link to the file in case you wonder: Webdriver for Chorme
Anyway, I do not know what the equivalences are to configure this on my server. Do you have any idea how to do it? Or any concepts I could learn related to installing packages on an Apache Server?
Simple solution:
You don't need to install the driver in usr/local/bin. You can have the .exe anywhere and you can specify that with an executable path, see here for an example.
Solution for running on a server
If you have python installed on the server, ideally >3.4 which comes with pip as default. Then install ChromeDriver on a standalone server, follow the instructions here
Note that, Selenium always need an instance of a browser to control.
Luckily, there are browsers out there that aren't that heavy as the usual browsers you know. You don't have to open IE / Firefox / Chrome / Opera. You can use HtmlUnitDriver which controls HTMLUnit - a headless Java browser that does not have any UI. Or a PhantomJsDriver which drives PhantomJS - another headless browser running on WebKit.
Those headless browsers are much less memory-heavy, usually are faster (since they don't have to render anything), they don't require a graphical interface to be available for the computer they run at and are therefore easily usable server-side.
Sample code of headless setup
op = webdriver.ChromeOptions()
op.add_argument('headless')
driver = webdriver.Chrome(options=op)
It's also worth reading on running Selenium RC, see here on that.

Selenium firefox instances freeze

I have a process running to scrape some information in bulk. It uses selenium and starts one firefox instance per URL to be scraped.
Similar processes run on multiple instances (to split workload). On one such instance, now I see processes freezing. They keep running for hours and hours. I have put no conditional waits in my selenium scripts. Other instances are running fine (which are also scraping the same website).
Selenium version - 3.0.2
Geckodriver version - 0.13.0
Firefox version - Mozilla Firefox 50.1.0
I tried going through the geckodriver logs but could not make sense of anything. Any ideas on how to debug this further?

Selenium webdriver support for the latest versions of firefox and chrome

I am using selenium-2.35.0 and Python-2.7.
Testcases are written in python.
my python code to create driver object:
from selenium import webdriver
driver = webdriver.Remote(desired_capabilities={
"browserName": "firefox"
})
And run selenium server by,
java - jar selenium-server-standalone-2.35.0.jar
I had my code working in Firefox - 22 - had the selenium server running, able to run scripts in python, etc. So I'm confident the code works.
Recently, I updated FireFox to 23 and now all I get is
"[Errno 10061] No connection could be made because the target machine actively refused it."
I thought maybe I need to restart the server again, or something. But that seems to do nothing. Is this issue related to selenium webdriver's support for the latest browser version?
But as of this link http://selenium.googlecode.com/git/java/CHANGELOG , selenium supports Firefox - 23. If supported, code that run in Firefox - 22 should also run in Firefox - 23 without any code change.
And how can i make the same code work for chrome?
I have found that the newest version of firefox routinely doens't work immediately well with Selenium. Check out this firefox support matrix on Github that someone made. Unfortunately the only thing you can do is stop Firefox from auto-updating and keep your selenium tests running for firefox newest version minus 1 or 2. Chrome tends to work out of the box for Selenium, sometimes the Beta channel has fixed some selenium issues, so try that if you have a particular issue (on the other hand it may introduce other bugs). So in the end you need to be constantly weary of browser updates and routinely checking how they are working with the current version of selenium.
Check out this guide on how to get Selenium working with rolled back versions of firefox:
http://inkhorn.ca/selenium-python-on-ubuntu-using-firefox/
It will also fix any errors that have to do with “version xul**.0 not defined in file libxul.so”

Categories