Develop Reference

Python Requests OS Error 104 Connection Broken Error

Hi I am trying to a hit an API using requests module of python. The Api has to be hit 20000 times as the number of pages are around 20000. In every hit the data comes around 10 mb. By the end of the process it creates a json file of around 100gb. Here is the code I have written
with open('file.json','wb',buffering=100*1048567) as f:
while(next_page_cursor != ""):
with request.get(url,headers=headers) as response:
json_response = json.loads(response.content.decode('utf-8'))
"""
json response looks something like this
{
content:[{},{},{}........50 dictionaries]
next_page_cursor : "abcd"
}
"""
next_page_cursor = json_response['next_page_cursor']
for data in json_response['content']:
f.write((json.dumps(data) + "\n").encode())
But after running successfully for few pages the code fails giving the below error:
Traceback (most recent call last):
File "<command-1206920060120926>", line 65, in <module>
with requests.get(data_url, headers = headers) as response:
File "/databricks/python/lib/python3.7/site-packages/requests/api.py", line 75, in get
return request('get', url, params=params, **kwargs)
File "/databricks/python/lib/python3.7/site-packages/requests/api.py", line 60, in request
return session.request(method=method, url=url, **kwargs)
File "/databricks/python/lib/python3.7/site-packages/requests/sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "/databricks/python/lib/python3.7/site-packages/requests/sessions.py", line 686, in send
r.content
File "/databricks/python/lib/python3.7/site-packages/requests/models.py", line 828, in content
self._content = b''.join(self.iter_content(CONTENT_CHUNK_SIZE)) or b''
File "/databricks/python/lib/python3.7/site-packages/requests/models.py", line 753, in generate
raise ChunkedEncodingError(e)
requests.exceptions.ChunkedEncodingError: ('Connection broken: OSError("(104, \'ECONNRESET\')")', OSError("(104, 'ECONNRESET')"))

you need to use response.iter_content
https://2.python-requests.org/en/master/api/#requests.Response.iter_content

Download with Python from URL gives No Host Supplied error

I am trying to make app that download comics but whenever I try to download an image, it says no host supplied.
I really searched and there was nothing.
This is the code:
import requests,bs4
url='https://www.marvel.com/comics/issue/71314/edge_of_spider-geddon_2018_1'
res=requests.get(url,stream=True)
res.raise_for_status()
soup=bs4.BeautifulSoup(res.text)
elem=soup.select('div[class="row-item-image"] img')#.viewer-cnt .row .col-xs-12 #ppp img')
#print(elem)
comicurl='https:'+elem[0].get('src')
res=requests.get(comicurl,stream=True,allow_redirects=True)
res.raise_for_status()
with open(comicurl[comicurl.rfind('/')+1:],'wb') as i:
for chunk in res.iter_content(100000):
i.write(chunk)
I expect it to download the image but it gives me this error:
Traceback (most recent call last):
File "C:\Users\Islam\AppData\Local\Programs\Python\Python36\comicdownloader.py", line 10, in <module>
res=requests.get(comicurl,stream=True,allow_redirects=True)
File "C:\Users\Islam\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\api.py", line 75, in get
return request('get', url, params=params, **kwargs)
File "C:\Users\Islam\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\api.py", line 60, in request
return session.request(method=method, url=url, **kwargs)
File "C:\Users\Islam\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\sessions.py", line 519, in request
prep = self.prepare_request(req)
File "C:\Users\Islam\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\sessions.py", line 462, in prepare_request
hooks=merge_hooks(request.hooks, self.hooks),
File "C:\Users\Islam\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\models.py", line 313, in prepare
self.prepare_url(url, params)
File "C:\Users\Islam\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\models.py", line 390, in prepare_url
raise InvalidURL("Invalid URL %r: No host supplied" % url)
requests.exceptions.InvalidURL: Invalid URL 'https:https://i.annihil.us/u/prod/marvel/i/mg/6/b0/5b6c5e4154f75/portrait_uncanny.jpg': No host supplied
And it gives it to me whenever I try it on any website.

it looks like elem[0].get('src') evaluates to https://i.annihil.us/u/prod/marvel/i/mg/6/b0/5b6c5e4154f75/portrait_uncanny.jpg.
so on line comicurl='https:'+elem[0].get('src') you add http: in front of an already well formed url, making it invalid

Can't argue with this: Invalid URL 'https:https://i.annihil.us/u/prod -- the URL is really invalid, probably you should get rid of https in the following statement:
comicurl='https:'+elem[0].get('src')

python-requests: "NoneType" has no attribute read

I'm trying to create a Python Wrapper for an upcoming API, so far I've been getting along well, but I keep bumping my head into the same problem. When making a POST request to add a mod to a game through the API, I feed the following dict item into the POST request
{'name': "Necro's Test Mod", 'name_id': None, 'summary': "This is a test mod submitted through the API using python's request library.", 'description': "I'm only about 43% sure this will actually work, whats more likely is that it will fail and return some messed up error with some even weirder error message before i am contacted by the mod.io developper saying they have personally revoked my api key (This isn't actually true i just need words", 'homepage': 'www.edain.wikia.com', 'metadata_blob': 'None', 'stock': 1, 'tags': ['cool', 'python', 'api'], 'logo': <_io.BufferedReader name='C:\\Users\\Clement\\Pictures\\Background\\7z6cSaI-lord-of-the-rings-wallpaper-hd.jpg'>}
And that dictionnary is added as follows
BASE_PATH = "https://api.test.mod.io/v1"
headers = {
'Authorization': 'Bearer ' + client.access_token,
'Content-Type': 'multipart/form-data',
'Accept': 'application/json'
}
r = requests.post(BASE_PATH + '/games/181/mods'.format(self.id), files = dict, headers = headers)
However it returns the following traceback, leading me to believe that the API returns a blank response
Traceback (most recent call last):
File "C:\Users\Clement\Desktop\mod.io\test.py", line 40, in <module>
new_mod = game.add_mod(newmod)
File "C:\Users\Clement\Desktop\mod.io\modio\game.py", line 83, in add_mod
r = requests.post(BASE_PATH + '/games/{}/mods'.format(self.id), files = mod.__dict__, headers = headers)
File "C:\Users\Clement\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\api.py", line 112, in post
return request('post', url, data=data, json=json, **kwargs)
File "C:\Users\Clement\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\api.py", line 58, in request
return session.request(method=method, url=url, **kwargs)
File "C:\Users\Clement\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\sessions.py", line 494, in request
prep = self.prepare_request(req)
File "C:\Users\Clement\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\sessions.py", line 437, in prepare_request
hooks=merge_hooks(request.hooks, self.hooks),
File "C:\Users\Clement\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\models.py", line 308, in prepare
self.prepare_body(data, files, json)
File "C:\Users\Clement\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\models.py", line 496, in prepare_body
(body, content_type) = self._encode_files(files, data)
File "C:\Users\Clement\AppData\Local\Programs\Python\Python36\lib\site-packages\requests\models.py", line 159, in _encode_files
fdata = fp.read()
AttributeError: 'NoneType' object has no attribute 'read'
Here's the documentation for the particular POST request I am attempting.

The files argument is meant for file uploads. You probably want to use data instead here.
r = requests.post(
BASE_PATH + '/games/181/mods'.format(self.id),
data = dict,
headers = headers
)
You get this error because requests expects the value of name_id to be a file pointer with a read() method. But in your payload it's None.
And don't use dict as a variable name.

for range to send post request by using requests.Session(), it alert 'module' object has no attribute 'kqueue'

macOS 10.12.3 python 2.7.13 requests 2.13.0
I use requests package to send post request.This request need to login before post data.So I use request.Session() and load a logined cookie.
Then I use this session to send post data in cycle mode.
It is no error that I used to run this code in Windows and Linux.
Simple Code:
s = request.Session()
s.cookies = cookieslib.LWPCookieJar('cookise')
s.cookies.load(ignore_discard=True)
for user_id in range(100,200):
url = 'http://xxxx'
data = { 'user': user_id, 'content': '123'}
r = s.post(url, data)
...
But the program frequently (about every interval) crash, the error isAttributeError: 'module' object has no attribute 'kqueue'
Traceback (most recent call last):
File "/Users/gasxia/Dev/Projects/TgbookSpider/kfz_send_msg.py", line 90, in send_msg
r = requests.post(url, data) # catch error if user isn't exist
File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 535, in post
return self.request('POST', url, data=data, json=json, **kwargs)
File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 488, in request
resp = self.send(prep, **send_kwargs)
File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 609, in send
r = adapter.send(request, **kwargs)
File "/usr/local/lib/python2.7/site-packages/requests/adapters.py", line 423, in send
timeout=timeout
File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/connectionpool.py", line 588, in urlopen
conn = self._get_conn(timeout=pool_timeout)
File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/connectionpool.py", line 241, in _get_conn
if conn and is_connection_dropped(conn):
File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/util/connection.py", line 27, in is_connection_dropped
return bool(wait_for_read(sock, timeout=0.0))
File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/util/wait.py", line 33, in wait_for_read
return _wait_for_io_events(socks, EVENT_READ, timeout)
File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/util/wait.py", line 22, in _wait_for_io_events
with DefaultSelector() as selector:
File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/util/selectors.py", line 431, in __init__
self._kqueue = select.kqueue()
AttributeError: 'module' object has no attribute 'kqueue'

This looks like a problem that commonly arises if you're using something like eventlet or gevent, both of which monkeypatch the select module. If you're using those to achieve asynchrony, you will need to ensure that those monkeypatches are applied before importing requests. This is a known bug, being tracked in this issue.

Having issues getting firebase data through Oauth pin-auth session for Nest

Base script:
from sanction import Client
# client_id & client_secret are omitted but are valid
client_pin = input('Enter PIN:')
access_token_url = 'https://api.home.nest.com/oauth2/access_token'
c = Client(
token_endpoint=access_token_url,
client_id=client_id,
client_secret=client_secret)
c.request_token(code = client_pin)
[See edits for history]
Running c.request('/devices') returned:
Traceback (most recent call last):
File "C:\py\nest_testing_sanction.py", line 36, in <module>
c.request("/devices")
File "C:\Python34\lib\site-packages\sanction-0.4.1-py3.4.egg\sanction\__init__.py", line 169, in request
File "C:\Python34\lib\site-packages\sanction-0.4.1-py3.4.egg\sanction\__init__.py", line 211, in transport_query
File "C:\Python34\lib\urllib\request.py", line 258, in __init__
self.full_url = url
File "C:\Python34\lib\urllib\request.py", line 284, in full_url
self._parse()
File "C:\Python34\lib\urllib\request.py", line 313, in _parse
raise ValueError("unknown url type: %r" % self.full_url)
ValueError: unknown url type: 'None/devices?access_token=c.[some long session token]'
Given the output it seems like I need to be putting in a generic URL so I tried c.request('wss://developer-api.nest.com'):
Traceback (most recent call last):
File "C:\py\nest_testing_sanction.py", line 36, in <module>
data = c.request(query_url)
File "C:\Python34\lib\site-packages\sanction-0.4.1-py3.4.egg\sanction\__init__.py", line 171, in request
File "C:\Python34\lib\urllib\request.py", line 153, in urlopen
return opener.open(url, data, timeout)
File "C:\Python34\lib\urllib\request.py", line 455, in open
response = self._open(req, data)
File "C:\Python34\lib\urllib\request.py", line 478, in _open
'unknown_open', req)
File "C:\Python34\lib\urllib\request.py", line 433, in _call_chain
result = func(*args)
File "C:\Python34\lib\urllib\request.py", line 1257, in unknown_open
raise URLError('unknown url type: %s' % type)
urllib.error.URLError: <urlopen error unknown url type: nonewss>
I also tried https as per:
- same result
By contrast, this works (for a firebase.io virtual device):
firebase = firebase.FirebaseApplication('https://nesttest.firebaseio.com', None)
thermostat_result = firebase.get('/devices', 'thermostats')

In Python I would use something like sanction to keep things simple. You should be able to get it to work with the Nest API using code like: (untested, using token flow rather than pin flow)
from sanction.client import Client
# instantiating a client to get the auth URI
c = Client(auth_endpoint="https://home.nest.com/login/oauth2",
client_id=config["nest.client_id"])
# instantiating a client to process OAuth2 response
c = Client(token_endpoint="https://api.home.nest.com/oauth2/access_token",
client_id=config["nest.client_id"],
client_secret=config["nest.client_secret"])
The library is well documented, so you should be able to figure it out from here if something is missing.

This is more of a comment, but the system does not let me comment just yet.
To your question about where to put the web pin simply add code = pin to the request_token call.
c.request_token(code = nest_client_pin)
This still does not fully solve the issue as I can only use a PIN once. After I have used it once, every subsequent call will fail again as you describe. Still researching that.