Connection error in python-requests - python

I'm trying to search using beautifulsoup with anaconda for python 3.6.
I am trying to scrape accuweather.com to find the weather in Tel Aviv.
This is my code:
from bs4 import BeautifulSoup
import requests
data=requests.get("https://www.accuweather.com/he/il/tel-
aviv/215854/weather-forecast/215854")
soup=BeautifulSoup(data.text,"html parser")
soup.find('div',('class','info'))
I get this error:
raise ConnectionError(err, request=request)
ConnectionError: ('Connection aborted.', OSError("(10060,
'WSAETIMEDOUT')",))
What can I do and what does this error mean?

What does this error mean
Googling for "errno 10600" yields quite a few results. Basically, it's a low-level network error (it's not http specific, you can have the same issue for any kind of network connection), whose canonical description is
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
IOW, your system failed to connect to the host. This might come from a lot of reasons, either temporary (like your internet connection is down) or not (like a proxy - if you are behind a proxy - blocking access to this host, etc), or quite simply (as is the case here) the host blocking your requests.
The first thing to do when you have such an error is to check your internet connection, then try to get the url in your browser. If you can get it in your browser then it's most often the host blocking you, most often based on your client's "user-agent" header (the client here is requests), and specifying a "standard" user-agent header as explained in newbie's answer should solve the problem (and it does in this case, or at least it did for me).
NB : to set the user agent:
headers = {
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36',
}
data = requests.get("https://www.accuweather.com/he/il/tel-aviv/215854/weather-forecast/215854", headers=headers)

The problem does not come from the code, but from the website.
If you add User-Agent field in the header of the request it will look like it comes from a browser.
Example:
from bs4 import BeautifulSoup
import requests
headers = {
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36',
}
data=requests.get("https://www.accuweather.com/he/il/tel-aviv/215854/weather-forecast/215854", headers=headers)

Related

Why does I get SSLV3_ALERT_HANDSHAKE_FAILURE error when requesting a website?

My code is below:
import urllib.request
import urllib.parse
from lxml import etree
HEADERS = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36'}
url = url + urllib.parse.quote(word)
print('search: ', word)
req = urllib.request.Request(url=url, headers=HEADERS, method='GET')
response = urllib.request.urlopen(req)
text = response.read().decode('utf-8')
This works fine, but after about 400 requests, I got this error:
urllib.error.URLError: <urlopen error [SSL: SSLV3_ALERT_HANDSHAKE_FAILURE] sslv3 alert handshake failure (_ssl.c:1076)>
What might be the cause of this?
The connection is being rejected during the TLS handshake for some reason. It could just be something transient (and a retry would work) or it may be due to a mismatch due to TLS protocol versions or ciphers. Or it could also be for other reasons that aren't immediately obvious, like a block list, or a broken server etc.
Adding some detection to your code that retries a few times then skips is probably a good general approach. Something like:
for i in range(0,3):
try:
# CONNECT
except:
continue
break
If you want to understand exactly why this particular URL is failing, the easiest solution is to download a copy of wireshark and see what is happening on the wire. There will likely be a TLS error, and possibly an alert code and message that gives more information.

Python-requests [('Connection aborted.', TimeoutError(10060) ]

I am using Python 3.7 with requests 2.23.0 library and trying to scrape a website, but get the following error message:
('Connection aborted.', TimeoutError(10060, 'A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond', None, 10060, None))
I used agent but no luck, I also tried to specify the timeout, still facing the same problem.
The website works fine when I access it through the browser
I used the same code with some other websites and it just worked fine.
Any kind of help is really appreciated.
-I am able to catch the exception, but I want to avoid it and actually access the website
Here is the code (just as simple as trying to access the website):
from requests import get
try:
agent = {'User-Agent':'Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36'}
url = "the url I'm trying to access"
html = get(url, headers = agent)
except (Exception) as error :
print ("Error", error)
Could it be something with the security of the website? I'd like to find a way to workaround
I could not comment due to low reputation,So posting as answer,
I think you will find your answer in below link:
Python3 error
I used selenium with user-agent option and I was able to access the website
user_agent = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.50 Safari/537.36'
options.add_argument('user-agent={0}'.format(user_agent))
Many thanks

getting past ReadTimeout from Python Requests

I'm trying to scrape the Home Depot website using Python and requests. Selenium Webdriver works fine, but takes way too much time, as the goal is to make a time-sensitive price comparison tool between local paint shops and power tool shops.
When I send a request to any other website, it works like normal. If I use any browser to navigate manually to the website, it also works fine (with or without session data/cookie data). I tried adding randomized headers into the request, but it does not seem to help the issue. From what I can see, it's not an issue of sending too many requests per time-period, (considering that selenium and manual browsing still works at any time.) I am confident that this specific issue is NOT because of a rate limitation.
my code:
from random import choice
import requests
import traceback
list_desktopagents = ['Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36']
def random_headers():
return {'User-Agent': choice(list_desktopagents),
'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'}
response = requests.get(
'https://www.homedepot.com/p/BEHR-1-gal-White-Alkyd-Semi-Gloss-Enamel-Alkyd-
Interior-Exterior-Paint-390001/300831629',
headers=myheaders,
timeout=10)
my error:
raise ReadTimeout(e, request=request)
requests.exceptions.ReadTimeout: HTTPSConnectionPool(host='www.homedepot.com', port=443): Read timed out. (read timeout=10)
Does anyone have a suggestion on what else I could do to successfully receive my response? I would prefer to use Requests, but anything that runs fast unlike selenium will be suitable. I understand that im being blocked, my question is not so much 'whats happening to stop me from scraping?', but rather, 'what can i do to further humanize my scraper so it allows me to continue?'
The error is coming from the User Agent. The reason why Selenium is working and not request is because Selenium is using a web driver to make the request, so it is more humanlike while request is much easier to be detected as a script. From Home Depot's robots.txt page it doesn't look like products are allowed for scraping. I just used this code and got a response by using this code:
headers={'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36'}
response = requests.get('https://www.homedepot.com/p/BEHR-1-gal-White-Alkyd-Semi-Gloss-Enamel-Alkyd-Interior-Exterior-Paint-390001/300831629', headers=headers)
print(response.content)
By using these user agents you can "trick" the site into thinking you are an actual person, which is what the web driver with Selenium does.

Python scraping script, avoid errors

I have large script where I scrape tweets from twitter without API because it's restricted. This script really do the job, but in some cases comes to an error like:
URLError: <urlopen error EOF occurred in violation of protocol (_ssl.c:590)>
Or something like:
URLError: <urlopen error [Errno 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond>
Of course, I am using User Agent
request = urllib2.Request(url, headers={"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.94 Safari/537.36"})
response = urllib2.urlopen(request).read()
So website will think that I am using some of these web browsers, the script really works and do the infinitely scroll, everything, but after some number of tweets comes to an error like these. Maybe twitter set me to the blacklist or something like that? I changed my IP, same is happening.. Or if the script change IP after 5 loops maybe, is it possible?
I am using these imports in my script:
from bs4 import BeautifulSoup
import json, csv, urllib2, urllib, re

Changing User Agent in Python 3 for urrlib.request.urlopen

I want to open a url using urllib.request.urlopen('someurl'):
with urllib.request.urlopen('someurl') as url:
b = url.read()
I keep getting the following error:
urllib.error.HTTPError: HTTP Error 403: Forbidden
I understand the error to be due to the site not letting python access it, to stop bots wasting their network resources- which is understandable. I went searching and found that you need to change the user agent for urllib. However all the guides and solutions I have found for this issue as to how to change the user agent have been with urllib2, and I am using python 3 so all the solutions don't work.
How can I fix this problem with python 3?
From the Python docs:
import urllib.request
req = urllib.request.Request(
url,
data=None,
headers={
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.47 Safari/537.36'
}
)
f = urllib.request.urlopen(req)
print(f.read().decode('utf-8'))
from urllib.request import urlopen, Request
urlopen(Request(url, headers={'User-Agent': 'Mozilla'}))
I just answered a similar question here: https://stackoverflow.com/a/43501438/206820
In case you just not only want to open the URL, but also want to download the resource(say, a PDF file), you can use the code as below:
# proxy = ProxyHandler({'http': 'http://192.168.1.31:8888'})
proxy = ProxyHandler({})
opener = build_opener(proxy)
opener.addheaders = [('User-Agent','Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/603.1.30 (KHTML, like Gecko) Version/10.1 Safari/603.1.30')]
install_opener(opener)
result = urlretrieve(url=file_url, filename=file_name)
The reason I added proxy is to monitor the traffic in Charles, and here is the traffic I got:
The host site rejection is coming from the OWASP ModSecurity Core Rules for Apache mod-security. Rule 900002 has a list of "bad" user agents, and one of them is "python-urllib2". That's why requests with the default user agent fail.
Unfortunately, if you use Python's "robotparser" function,
https://docs.python.org/3.5/library/urllib.robotparser.html?highlight=robotparser#module-urllib.robotparser
it uses the default Python user agent, and there's no parameter to change that. If "robotparser"'s attempt to read "robots.txt" is refused (not just URL not found), it then treats all URLs from that site as disallowed.

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