I am using requests library of python to download a file of size approx. 40mb. But with my code i am getting file of size 14mb only. It is not showing any error(few warnings though before download file).
here is my code:
import requests
file_url = "https://file_url.tar"
user='username'
passw='password'
r = requests.get(file_url,auth=(user,passw),verify=False, stream = True)
with open("c.tar","wb") as code:
for chunk in r.iter_content(chunk_size=1024):
if chunk:
code.write(chunk)
I tried using without 'stream=True' too. but that also not working.
When i am puting this URL in browser i am getting complete file of 40 mb.
I tried this script on some other machine and it is working fine there(and i am getting those warnings here too).
These are the warnings i am getting:
SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#snimissingwarning.
SNIMissingWarning
InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
InsecurePlatformWarning
InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.org/en/latest/security.html
InsecureRequestWarning)
but i don't think there is a problem because of this because if i am running this script on some other system i am getting these warnings but script is working fine.
I am using urllib instead of requests
import urllib
url = "http://62.138.7.10/downloads/Bh2g2m.Bh2g.06.DR.M0viesC0unter.mp4?st=6MVZyTUL7X22v7ILOtB2XA&e=1502823147"
file_name = 'trial_video.mp4'
response = urllib.urlopen(url)
with open(file_name,'wb') as f:
f.write(response.read())
Hope this will help you
I have experienced similar problems with Requests. Requests is great for doing fancy JSON api POST requests etc, but for ordinary file downloads, pycurl is a much better tool. The complicated dependency on libcurl means you shouldn't try installing pycurl with pip; instead you need to download a copy from your distro, or use one of the prebuilt win32 modules from their site.
For what it's worth, when I was using requests for file downloads, I also set up logging, and I got some "broken pipe" errors. Maybe Requests disconnects early for performance reasons or something? I didn't have the patience to figure it out when I knew there was an alternative solution that works reliably.
Related
I'm writting a Flask app that connects to external soap service that uses TLS v1.2.
I'm using Python 2.7 and requests library in version 2.18.1.
I've contacted server owner and he told me that I need to include multiple client certificates in TLS connection. It's a chain of 3 certificates which I have in separate .pem files. (root + indermediate + my client certificate).
Server won't let me in if I would have just the last one.
I've tested this with SoapUI and Wireshark and it's true. I receive a response only when I provide the whole chain of 3 certificates.
I get an error from the server when passing just my client certificate.
From requests documentation you can read that as client certificate you can pass just one cert using:
session = requests.session()
session.cert = ('/path/client_cert.pem', '/path/private_key.pem')
response = session.post(SERVICE_URL, data=XML_CONTENT, headers=HEADERS)
I get an error even if my "client_cert.pem" file is a bundle of 3 certificates (just like you do it in session.verify with CA certs). I can see on Wireshark that only the first one is used in TLS connection.
Is there any way to include multiple certificates TLS connection in Python's requests library?
Maybe I should use different library or override some of it's code?
I've got it!
I had some legacy library versions installed.
It seems that this issue was fixed by requests library developers in version 1.23. I also had to update urllib3.
My current requirements.txt is:
requests==2.22.0
urllib3==1.25.2 # compatible with requests 2.22
For following spec everything works perfecly. I've checked TLS connection on Wireshark. All certificates from "client_cert.pem" chain are passed.
If you'll have problems like this in the future remember to check if your requests and urllib3 library versions are compatible.
Thank you guys!
I'm developing a python program to grab all images from a website and download them to a folder along with creating a csv file to store all of this information. I'm utilizing urllib and continue to get an error about ssl certificate failure. I'm running on Jupyter notebook, Windows 10, and Python 3.7.
I tried pip installing certifi and urllib but those are already satisfied. I've tried restarting Jupyter and that does not fix the problem. I'm not really sure where to start to fix this as I'm not super familiar with urllib.
I expect this to download the images and output to the csv file, and it does output to the csv file, but the image won't download when I get this error:
The error doesn't halt the program but it does inhibit the intended function of the program.
If you are using urllib library use context parameter when you gave request to open URL. Here is implementation:
import urllib.request
import ssl
#Ignore SSL certificate errors
ssl_context = ssl.create_default_context()
ssl_context.check_hostname = False
ssl_context.verify_mode = ssl.CERT_NONE
html = urllib.request.urlopen(url, context=ssl_context).read()
If you are able to consider using the requests library instead of urllib, you just do
import requests
response = requests.get('your_url', verify=False)
But also consider the warning here.
I'm trying to parse the data from this url:
https://www.chemeo.com/search?q=show%3Ahfus+tf%3A275%3B283
But I think this is failing because the website uses SSL TLS 1.3. How can I enable my Python script, below, to connect using SSL in urllib.request?
I've tried using an SSL context but this doesn't seem to work.
This is the Python 3.6 code I have:
import urllib.request
import ssl
from bs4 import BeautifulSoup
scontext = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
chemeo_search_url = "https://www.chemeo.com/search?q=show%3Ahfus+tf%3A275%3B283"
print(chemeo_search_url)
with urllib.request.urlopen(chemeo_search_url, context=scontext) as f:
print(f.read(200))
Try:
ssl.PROTOCOL_TLS
From the docs on "PROTOCOL_SSLv23":
Deprecated since version 2.7.13: Use PROTOCOL_TLS instead.
note:
Be sure to have the CA certificate bundles installed, like on a minimal build of alpine linux, busybox, the certs have to be installed. Also sometimes if python wasn't compiled with SSL support, it might be necessary to to do so. Also depending on which version of OpenSSL has been compiled will determine which features for SSL will be usable.
Also note chemeo site doesn't use TLSv1.3 ... it is still experimental and not all that secure at the time of this writing, they currently support tls 1.0, 1.1, 1.2 using "letsencrypt" as their cert provider.
I am unable to issue a request to piratebay using requests with python2.7. I did the same with python3.4 and it worked ok. The line which I'm trying to execute:
r = requests.get("http://thepiratebay.se/browse/201", verify=False)
I did the verify=False to try and escape all the SSL jargon to no avail. It's a small personal project anyway..
I also tried to change the version of SSL using this link, however it still is giving me
requests.exceptions.SSLError: [Errno 1] _ssl.c:510: error:14077438:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert internal error.`
Thanks
The site thepiratebay.se requires Server Name Indication (SNI) and will throw an alert if the client does not support it. While python3 supported SNI for a while already with python2.7 SNI was only added with version 2.7.9. My guess is that you are using an older version of python 2.7 and that's why run into this error.
I know how to use requests very well, yet for some reason I am not succeeding in getting the proxies working. I am making the following request:
r = requests.get('http://whatismyip.com', proxies={'http': 'http://148.236.5.92:8080'})
I get the following:
requests.exceptions.ConnectionError: [Errno 10060] A connection attempt failed b
ecause the connected party did not properly respond after a period of time, or e
stablished connection failed because connected host has failed to respond
Yet, I know the proxy works, because using node:
request.get({uri: 'http://www.whatismyip.com', proxy: 'http://148.236.5.92:8080'},
function (err, response, body) {var $ = cheerio.load(body); console.log($('#greenip').text());});
I get the following (correct) response:
148.236.5.92
Furthermore, when I try the requests request at all differently (say, without writing http:// in front of the proxy), it just allows the request to go through normally without going through a proxy or returning an error.
What am I doing wrong in Python?
It's a known issue: https://github.com/kennethreitz/requests/issues/1074
I'm not sure exactly why it's taking so long to fix though. To answer your question though, you're doing nothing wrong.
As sigmavirus24 says, this is a known issue, which has been fixed, but hasn't yet been packaged up into a new version and pushed to PyPI.
So, if you need this in a hurry, you can upgrade from the git repo's master.
If you're using pip, this is simple. Instead of this:
pip install -U requests
Do this:
pip install -U git+https://github.com/kennethreitz/requests
If you're not using pip, you'll probably have to explicitly git clone the repo, then easy_install . or python setup.py or whatever from your local copy.