I am web-scraping Bitcoin quotations from Coinsuper. It is a javascript page. When I first develop my code on Windows using Python 3.7, Selenium, and Chromium, it works well.
I want to deploy this code on my server to fetch data continuously. However, it doesn't work under Linux.
I am sure my code can work, at least on most websites, including Apple, Google, Baidu, Xueqiu, etc.
For the OS system, I have tried Debian 9 and Ubuntu 18.04.
For webdriver, I have tried both Chrome and Firefox.
For webdriver parameters, I have tried:
Add header, including fake-useragent
Ignore SSL certificate
Disable GPU
These make no difference.
I think it might because Coinsuper has some anti-scraping strategy. But I am also confused why the similar code can work on Windows but not on Linux. Are there any differences that might cause this situation?
The code:
from selenium import webdriver
chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument('--headless')
chrome_options.add_argument('--disable-gpu') # Only included in Linux version
chrome_options.add_argument('--no-sandbox') # Only included in Linux version
driver = webdriver.Chrome(options=chrome_options)
driver.get('https://www.coinsuper.com/trade')
print(driver.page_source)
driver.quit()
I am the one who asks this question. Thank you all for helping me! Finally, I have solved this problem.
#furas showed that my code could actually get responses from Coinsuper.
#Dalvenjia inspired me that this might be caused by IP blacklist, which is most probable for the cloud servers. And yes, I am using a cloud server.
Here is the solution:
Start a Shadowsocks server from my home IP address, or use any proxy you have.
Start Shadowsocks client on the server:
Add one more argument to ChromeDriver in Python script:
chrome_options.add_argument('--proxy-server=socks5://127.0.0.1:xxxx')
Now I can get contents by bypassing the IP blacklist.
I recommend you to use WebDriverManager dependency:
https://github.com/bonigarcia/webdrivermanager
By using WebDriverManager, you didn't need to download or manage drivers path in code.
I'm trying to use selenium from python but I'm having a problem running it on a RHEL5.5 server. I don't seem to be able to really start firefox.
from selenium import webdriver
b = webdriver.Firefox()
On my laptop with ubuntu this works fine and it starts a brings up a firefox window. When I log in to the server with ssh I can run firefox from the command line and get it displayed on my laptop. It is clearly firefox from the server since it has the RHEL5.5 home page.
When I run the python script above on the server it (or run it in ipython) the script hangs at webdriver.Firefox()
I have also tried
from selenium import webdriver
fb = webdriver.FirefoxProfile()
fb.native_events_enabled=True
b=webdriver.Firefox(fb)
Which also hangs on the final line there.
I'm using python2.7 installed in /opt/python2.7. In installed selenium with /opt/python2.7/pip-2.7.
I can see the firefox process on the server with top and it is using a lot of CPU. I can also see from /proc/#/environ that the DISPLAY is set to localhost:10.0 which seems right.
How can I get a browser started with selenium on RHEL5.5? How can I figure out why Firefox is not starting?
It looks like the problem I'm encountering is this selenium bug:
http://code.google.com/p/selenium/issues/detail?id=2852
I used the fix described in comment #9 http://code.google.com/p/selenium/issues/detail?id=2852#c9
That worked for me.
from selenium import webdriver
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support.ui import WebDriverWait # available since 2.4.0
import time
# Create a new instance of the Firefox driver
driver = webdriver.Firefox()
# go to the google home page
driver.get("http://www.google.com")
This opens a Firefox window but does not open a url.
I have a proxy server(but the address bar does not show the passed url)
I have two Firefox profiles.
Can 1 or 2 be an issue? if yes, then how can I resolve it?
It is a defect of Selenium.
I have the same problem in Ubuntu 12.04 behind the proxy.
Problem is in incorrect processing proxy exclusions. Default Ubuntu exclusions are located in no_proxy environment variable:
no_proxy=localhost,127.0.0.0/8
But it seems that /8 mask doesn't work for selenium. To workaround the problem it is enough to change no_proxy to the following:
no_proxy=localhost,127.0.0.1
Removing proxy settings before running python script also helps:
http_proxy= python script.py
I was facing exactly the same issue, after browsing for sometime,I came to know that it is basically version compatibility issue between FireFox and selenium. I have got the latest FireFox but my Selenium imported was older which is causing the issue. Issue got resolved after upgrading selenium
pip install -U selenium
OS: windows Python 2.7
I have resolved this issue.
If your jar files are older than the latest version and the browser has updated to latest version, then download:
the latest jar files from the selenium website http://www.seleniumhq.org/download/, and
the latest geckodriver.exe.
#Neeraj
I've resolved this problem, but i'm not sure if you are the same reason.
In general, my problem was caused by some permission issues.
I tried to move my whole project into ~/:
mv xxx/ ~/
and then i change give it the 777 permission:
chmod -R 777 xxx/
I'm not familiar with linux permission so i just do this to make sure i have permission to execute the program.
Even you don't have permission, the selenium program will not prompt you.
So, good luck.
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
WebDriver driver = new FirefoxDriver();
driver.manage().timeouts().implicitlyWait(30,TimeUnit.SECONDS);
driver.get("http://www.google.com");
OR
import org.openqa.selenium.support.ui.ExpectedConditions;
WebDriverWait wait = new WebDriverWait(driver,30);
driver.get("http://www.google.com");
//hplogo is the id of Google logo on google.com
wait.until(ExpectedConditions.presenceOfElementLocated(By.id("hplogo")));
I had the similar problem. All I had to do was delete the existing geckodriver.exe and download the latest release of the same. You can find the latest release here https://github.com/mozilla/geckodriver/releases.
A spent a lot of time on this issue and finally found that selenium 2.44 not working with node version 0.12.
Use node version 0.10.38.
I got the same error when issuing a URL without the protocol (like localhost:4200) instead of a correct one also specifying the protocol (e.g. http://localhost:4200).
Google Chrome works fine without the protocol (it takes http as the default), but Firefox crashes with this error.
I was getting similar problem and Stating string for URL worked for me. :)
package Chrome_Example;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
public class Launch_Chrome {
public static void main(String[] args) {
System.setProperty("webdriver.chrome.driver", "C:\\Users\\doyes\\Downloads\\chromedriver_win324\\chromedriver.exe");
String URL = "http://www.google.com";
WebDriver driver = new ChromeDriver();
driver.get(URL);
}
}
I had the same problem but with Chrome.
Solved it using the following steps
Install Firefox/Chrome webdriver from Google
Put the webdriver in Chrome's directory.
Here's the code and it worked fine
from selenium import webdriver
class InstaBot(object):
def __init__(self):
self.driver=webdriver.Chrome("C:\Program
Files(x86)\Google\Chrome\Application\chromedriver.exe")# make sure
#it is chrome driver
self.driver.get("https://www.wikipedia.com")
InstaBot()
Check your browser version and do the following.
1. Download the Firefox/Chrome webdriver from Google
2. Put the webdriver in Chrome's directory.
I was having the save issue when trying with Chrome. I finally placed my chromedrivers.exe in the same location as my project. This fixed it for me.
Update your driver based on your browser.
In my case for chrome,
Download latest driver for your chrome from here : https://chromedriver.chromium.org/downloads
Check chrome version from your browser at : chrome://settings/help.
While initialising your driver,
use driver = webdriver.Chrome(executable_path="path/to/downloaded/driver")
Please have a look at this HowTo: http://www.qaautomation.net/?p=373
Have a close look at section "Instantiating WebDriver"
I think you are missing the following code line:
wait = new WebDriverWait(driver, 30);
Put it between
driver = webdriver.Firefox();
and
driver.getUrl("http://www.google.com");
Haven't tested it, because I'm not using Selenium at the moment. I'm familiar with Selenium 1.x.
I was having the save issue. I assume you made sure your java server was running before you started your python script? The java server can be downloaded from selenium's download list.
When I did a netstat to evaluate the open ports, i noticed that the java server wasn't running on the specific "localhost" host:
When I started the server, I found that the port number was 4444 :
$ java -jar selenium-server-standalone-2.35.0.jar
Sep 24, 2013 10:18:57 PM org.openqa.grid.selenium.GridLauncher main
INFO: Launching a standalone server
22:19:03.393 INFO - Java: Apple Inc. 20.51-b01-456
22:19:03.394 INFO - OS: Mac OS X 10.8.5 x86_64
22:19:03.418 INFO - v2.35.0, with Core v2.35.0. Built from revision c916b9d
22:19:03.681 INFO - RemoteWebDriver instances should connect to: http://127.0.0.1:4444/wd/hub
22:19:03.683 INFO - Version Jetty/5.1.x
22:19:03.683 INFO - Started HttpContext[/selenium-server/driver,/selenium-server/driver]
22:19:03.685 INFO - Started HttpContext[/selenium-server,/selenium-server]
22:19:03.685 INFO - Started HttpContext[/,/]
22:19:03.755 INFO - Started org.openqa.jetty.jetty.servlet.ServletHandler#21b64e6a
22:19:03.755 INFO - Started HttpContext[/wd,/wd]
22:19:03.765 INFO - Started SocketListener on 0.0.0.0:4444
I was able to view my listening ports and their port numbers(the -n option) by running the following command in the terminal:
$netstat -an | egrep 'Proto|LISTEN'
This got me the following output
Proto Recv-Q Send-Q Local Address Foreign Address (state)
tcp46 0 0 *.4444 *.* LISTEN
I realized this may be a problem, because selenium's socket utils, found in: webdriver/common/utils.py are trying to connect via "localhost" or 127.0.0.1:
socket_.connect(("localhost", port))
once I changed the "localhost" to '' (empty single quotes to represent all local addresses), it started working. So now, the previous line from utils.py looks like this:
socket_.connect(('', port))
I am using MacOs and Firefox 22. The latest version of Firefox at the time of this post is 24, but I heard there are some security issues with the version that may block some of selenium's functionality (I have not verified this). Regardless, for this reason, I am using the older version of Firefox.
This worked for me (Tested on Ubuntu Desktop 11.04 with Python-2.7):
from selenium import webdriver
driver = webdriver.Firefox()
driver.get("http://www.stackoverflow.com")
Since you mentioned you use a proxy, try setting up the firefox driver with a proxy by following the answer given here proxy selenium python firefox
Try the following code
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
WebDriver DRIVER = new FirefoxDriver();
DRIVER.get("http://www.google.com");
You need to first declare url as a sting as below:
from selenium import webdriver
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support.ui import WebDriverWait # available since 2.4.0
import time
# Create a new instance of the Firefox driver
String URL = "http://www.google.com";
driver = webdriver.Firefox()
# go to the google home page
driver.get(URL);
The installation page here says to add the selenium server standalone jar to the CLASSPATH. What does the jar do? Do I need it? I ran some selenium code already and it works without it. I just instantiated IE doing
driver = driver.Ie()
I am running webdriver (selenium 2) in Python, trying to test IE9 (and then after test IE8). (I'm not using .NET, just running a .py file) Thanks!
That was the jar you needed to run with "Selenium 1". It is not necessary with Selenium 2 as far as I know. It may be used when doing remote testing (I haven't done that with Selenium 2), but it is definitely not needed for local testing.
I am trying to lauch a Selenium scrit from a Python script and it gets stuck at "11:16:32.144 INFO - Launching Firefox..."
The Selenium server is running well, I also tried the Selenium IDE and it works. I am using Ubuntu lynx, Firefox 3.6.23, Selenium server 2.11.0
What do you think it could be ?
Thank you very much.
Regards.
It could be that Selenium can't find firefox somehow?
Is the process ending? or just hanging?
Try starting selenium runner manually, say from ipython, something like:
from selenium import selenium
sr = selenium(host, port, "*firefox*", url)
sr.start()
and see if you get an exception?