import webapp2
import mysql.connector
class MainHandler(webapp2.RequestHandler):
def get(self):
db=mysql.connector.connect(host="localhost",user="root",password="bsit",database="registration")
mycursor=db.cursor()
mycursor.execute("select * from student")
result=mycursor.fetchall()
self.response.write(str(result))
app = webapp2.WSGIApplication([('/', MainHandler)], debug=True)
Internal Server Error
The server has either erred or is incapable of performing the requested operation.
Traceback (most recent call last):
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1535, in __call__
rv = self.handle_exception(request, response, e)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1529, in __call__
rv = self.router.dispatch(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1102, in __call__
return handler.dispatch()
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "C:\Users\Aaqib Nadeem\Desktop\db-test\main.py", line 6, in get
db=mysql.connector.connect(host="localhost",user="root",password="bsit",database="registration")
File "C:\Python27\lib\mysql\connector\__init__.py", line 162, in connect
return MySQLConnection(*args, **kwargs)
File "C:\Python27\lib\mysql\connector\connection.py", line 129, in __init__
self.connect(**kwargs)
File "C:\Python27\lib\mysql\connector\connection.py", line 454, in connect
self._open_connection()
File "C:\Python27\lib\mysql\connector\connection.py", line 418, in _open_connection
self._do_handshake()
File "C:\Python27\lib\mysql\connector\connection.py", line 141, in _do_handshake
packet = self._socket.recv()
File "C:\Python27\lib\mysql\connector\network.py", line 255, in recv_plain
errno=2055, values=(self.get_address(), _strioerror(err)))
OperationalError: 2055: Lost connection to MySQL server at 'localhost:3306', system error:
Please provide a solution of this error
There is no way to use MySQL with Google App Engine. You can use GAE Cloud SQL instead.
Related
I am recently working on a project that uses Google App Engine running on python2.7 on Ubuntu18.04. Files need to be uploaded to AWS S3, so we are using boto for this. However running the code outside the app works but when running it inside GAE it gives me the following error:
ERROR 2021-05-12 03:54:54,582 webapp2.py:1552] 'module' object has no attribute 'HTTPSConnection'
Traceback (most recent call last):
File "/home/depotter/Downloads/google-cloud-sdk-282.0.0-linux-x86_64/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.5.2/webapp2.py", line 1535, in __call__
rv = self.handle_exception(request, response, e)
File "/home/depotter/Downloads/google-cloud-sdk-282.0.0-linux-x86_64/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.5.2/webapp2.py", line 1529, in __call__
rv = self.router.dispatch(request, response)
File "/home/depotter/Downloads/google-cloud-sdk-282.0.0-linux-x86_64/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.5.2/webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "/home/depotter/Downloads/google-cloud-sdk-282.0.0-linux-x86_64/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.5.2/webapp2.py", line 1102, in __call__
return handler.dispatch()
File "/home/depotter/Downloads/google-cloud-sdk-282.0.0-linux-x86_64/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.5.2/webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "/home/depotter/Downloads/google-cloud-sdk-282.0.0-linux-x86_64/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.5.2/webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "/home/depotter/projects/mwcentral/server/./online_ordering/ctg/menu.py", line 204, in post
self.send_menu(company_key, store_id, timestamp)
File "/home/depotter/projects/mwcentral/server/./online_ordering/ctg/menu.py", line 257, in send_menu
result = self.upload_menu(menu, company_key_id, store_id)
File "/home/depotter/projects/mwcentral/server/./online_ordering/ctg/menu.py", line 295, in upload_menu
key.set_contents_from_string(file)
File "/home/depotter/projects/mwcentral/lib/boto/s3/key.py", line 1442, in set_contents_from_string
encrypt_key=encrypt_key)
File "/home/depotter/projects/mwcentral/lib/boto/s3/key.py", line 1309, in set_contents_from_file
chunked_transfer=chunked_transfer, size=size)
File "/home/depotter/projects/mwcentral/lib/boto/s3/key.py", line 762, in send_file
chunked_transfer=chunked_transfer, size=size)
File "/home/depotter/projects/mwcentral/lib/boto/s3/key.py", line 963, in _send_file_internal
query_args=query_args
File "/home/depotter/projects/mwcentral/lib/boto/s3/connection.py", line 671, in make_request
retry_handler=retry_handler
File "/home/depotter/projects/mwcentral/lib/boto/connection.py", line 1071, in make_request
retry_handler=retry_handler)
File "/home/depotter/projects/mwcentral/lib/boto/connection.py", line 913, in _mexe
self.is_secure)
File "/home/depotter/projects/mwcentral/lib/boto/connection.py", line 705, in get_http_connection
return self.new_http_connection(host, port, is_secure)
INFO 2021-05-12 03:54:54,590 module.py:865] remote-ordering: "POST /api/ctg/tasks/menu/send HTTP/1.1" 500 3685
WARNING 2021-05-12 03:54:54,590 taskqueue_stub.py:2149] Task task2 failed to execute. This task will retry in 40.000 seconds
File "/home/depotter/projects/mwcentral/lib/boto/connection.py", line 755, in new_http_connection
connection = http_client.HTTPSConnection(
AttributeError: 'module' object has no attribute 'HTTPSConnection'
Any help is appreciated!
I use requests library (or urllib3), trying to get xml page from web site. And my code is working, but when i use it in app engine it shows an error
Traceback (most recent call last):
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1535, in __call__
rv = self.handle_exception(request, response, e)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1529, in __call__
rv = self.router.dispatch(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1102, in __call__
return handler.dispatch()
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "C:\Users\Kirill\Desktop\Schedule\Schedule\main.py", line 51, in get
class_list = get_class_list()
File "C:\Users\Kirill\Desktop\Schedule\Schedule\get_class_urllib3.py", line 6, in get_class_list
r = http.request('POST', 'http://sgo.volganet.ru/lacc.asp?Function=GetClassListForSchool&SchoolID=1460')
File "C:\Users\Kirill\Desktop\Schedule\Schedule\urllib3\request.py", line 73, in request
**urlopen_kw)
File "C:\Users\Kirill\Desktop\Schedule\Schedule\urllib3\request.py", line 151, in request_encode_body
return self.urlopen(method, url, **extra_kw)
File "C:\Users\Kirill\Desktop\Schedule\Schedule\urllib3\poolmanager.py", line 165, in urlopen
response = conn.urlopen(method, u.request_uri, **kw)
File "C:\Users\Kirill\Desktop\Schedule\Schedule\urllib3\connectionpool.py", line 558, in urlopen
body=body, headers=headers)
File "C:\Users\Kirill\Desktop\Schedule\Schedule\urllib3\connectionpool.py", line 389, in _make_request
assert_header_parsing(httplib_response.msg)
File "C:\Users\Kirill\Desktop\Schedule\Schedule\urllib3\util\response.py", line 49, in assert_header_parsing
type(headers)))
TypeError: expected httplib.Message, got <type 'instance'>.
So can you help me to fix this problem or suggest any module I can use in app angine to create post request to differen site.
I would recommend using the API provided by AppEngine: urlfetch.fetch()
I'am trying to calculate a due date. Here's the code:
from datetime import datetime,timedelta
commande = self.pool.get('commandes').browse(cr, uid,commande_id,context=context)
date_commande= datetime.strptime(commande.date_commande, "%Y-%m-%d").date()
res['due_date']=date_commande+timedelta(days=20)
the field due_date is date type
I get this error:
XmlHttpRequestError INTERNAL SERVER ERROR
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>500 Internal Server Error</title>
<h1>Internal Server Error</h1>
<p>The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.</p>
I tested the code without timedelta and i still got the same error
the traceback:
Traceback (most recent call last):
File "werkzeug\serving.py", line 159, in run_wsgi
File "werkzeug\serving.py", line 146, in execute
File "C:\Program Files (x86)\OpenERP 7.0-20140120-002508\Server\server\openerp\service\wsgi_server.py", line 417, in application
return application_unproxied(environ, start_response)
File "C:\Program Files (x86)\OpenERP 7.0-20140120-002508\Server\server\openerp\service\wsgi_server.py", line 403, in application_unproxied
result = handler(environ, start_response)
File "C:\Program Files (x86)\OpenERP 7.0-20140120-002508\Server\server\openerp\addons\web\http.py", line 528, in __call__
return self.dispatch(environ, start_response)
File "C:\Program Files (x86)\OpenERP 7.0-20140120-002508\Server\server\openerp\addons\web\http.py", line 487, in __call__
return self.app(environ, start_wrapped)
File "werkzeug\wsgi.py", line 411, in __call__
File "C:\Program Files (x86)\OpenERP 7.0-20140120-002508\Server\server\openerp\addons\web\http.py", line 487, in __call__
return self.app(environ, start_wrapped)
File "werkzeug\wsgi.py", line 411, in __call__
File "C:\Program Files (x86)\OpenERP 7.0-20140120-002508\Server\server\openerp\addons\web\http.py", line 487, in __call__
return self.app(environ, start_wrapped)
File "werkzeug\wsgi.py", line 411, in __call__
File "C:\Program Files (x86)\OpenERP 7.0-20140120-002508\Server\server\openerp\addons\web\http.py", line 553, in dispatch
result = handler(request)
File "C:\Program Files (x86)\OpenERP 7.0-20140120-002508\Server\server\openerp\addons\web\http.py", line 618, in <lambda>
return lambda request: JsonRequest(request).dispatch(method)
File "C:\Program Files (x86)\OpenERP 7.0-20140120-002508\Server\server\openerp\addons\web\http.py", line 251, in dispatch
body = simplejson.dumps(response)
File "simplejson\__init__.py", line 286, in dumps
File "simplejson\encoder.py", line 228, in encode
File "simplejson\encoder.py", line 515, in _iterencode
File "simplejson\encoder.py", line 483, in _iterencode_dict
File "simplejson\encoder.py", line 483, in _iterencode_dict
File "simplejson\encoder.py", line 483, in _iterencode_dict
File "simplejson\encoder.py", line 525, in _iterencode
File "simplejson\encoder.py", line 202, in default
TypeError: datetime.date(2014, 3, 3) is not JSON serializable
Please can someone tell me where i made a mistake?
Thanks
Your problem in the response encoding to JSON as it can't parse datetime(date) to JSON, you should convert it to string using strftime function.
so you can try:
from datetime import datetime,timedelta
commande = self.pool.get('commandes').browse(cr, uid,commande_id,context=context)
date_commande= datetime.strptime(commande.date_commande, "%Y-%m-%d").date()
res['due_date']= datetime.strftime(date_commande+timedelta(days=20),"%Y-%m-%d")
I had a create a REST API using bottle framework, which receives calls from GAE. Once this REST API is invoked, it did some calculations and sent outputs as a zip file to AMAZON S3 server and return the link to GAE. Everything works fine expect the timeout issue. I tried to adjust the deadline of urlfetch to 60 seconds, which did not solve the problem. I appreciate any suggestions.
GAE side:
response = urlfetch.fetch(url=url, payload=data, method=urlfetch.POST, headers=http_headers, deadline=60)
Broser error info.:
Traceback (most recent call last):
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1535, in __call__
rv = self.handle_exception(request, response, e)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1529, in __call__
rv = self.router.dispatch(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1102, in __call__
return handler.dispatch()
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "D:\Dropbox\ubertool_src\przm5/przm5_output.py", line 22, in post
przm5_obj = przm5_rest_model.przm5(args)
File "D:\Dropbox\ubertool_src\przm5\przm5_rest_model.py", line 351, in __init__
self.convertSoil1, self.convert1to3, self.convert2to3)
File "D:\Dropbox\ubertool_src\przm5\przm5_rest_model.py", line 135, in get_jid
response = urlfetch.fetch(url=url, payload=data, method=urlfetch.POST, headers=http_headers)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\urlfetch.py", line 270, in fetch
return rpc.get_result()
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 612, in get_result
return self.__get_result_hook(self)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\urlfetch.py", line 410, in _get_fetch_result
'Deadline exceeded while waiting for HTTP response from URL: ' + url)
DeadlineExceededError: Deadline exceeded while waiting for HTTP response from URL: http://localhost:7777/my_model
REST server:
#route('/my_model', method='POST')
#auth_basic(check)
def my_model():
#run the model
run_my model()
#zip output files
zout=zipfile.ZipFile("test.zip","w")
for name in os.listdir(src1):
zout.write(name)
zout.close()
##upload file to S3
conn = S3Connection(key, secretkey)
bucket = Bucket(conn, 'przm5')
k=Key(bucket)
name1='PRZM5_'+name_temp+'.zip'
k.key=name1
###All the above steps are fine####
k.set_contents_from_filename('test.zip')
link='https://s3.amazonaws.com/'+my_file_path
return {'ff': ff}
run(host='localhost', port=7777, debug=True)
Errors from the REST server:
127.0.0.1 - - [07/Jan/2014 16:16:36] "POST /my_model HTTP/1.1" 200 1663
Traceback (most recent call last):
File "C:\Python27\Lib\wsgiref\handlers.py", line 86, in run
self.finish_response()
File "C:\Python27\Lib\wsgiref\handlers.py", line 128, in finish_response
self.write(data)
File "C:\Python27\Lib\wsgiref\handlers.py", line 212, in write
self.send_headers()
File "C:\Python27\Lib\wsgiref\handlers.py", line 270, in send_headers
self.send_preamble()
File "C:\Python27\Lib\wsgiref\handlers.py", line 194, in send_preamble
'Date: %s\r\n' % format_date_time(time.time())
File "C:\Python27\Lib\socket.py", line 324, in write
self.flush()
File "C:\Python27\Lib\socket.py", line 303, in flush
self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 10053] An established connection was aborted by the software in your host machine
127.0.0.1 - - [07/Jan/2014 16:16:36] "POST /my_model HTTP/1.1" 500 59
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 50953)
Traceback (most recent call last):
File "C:\Python27\Lib\SocketServer.py", line 295, in _handle_request_noblock
self.process_request(request, client_address)
File "C:\Python27\Lib\SocketServer.py", line 321, in process_request
self.finish_request(request, client_address)
File "C:\Python27\Lib\SocketServer.py", line 334, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "C:\Python27\Lib\SocketServer.py", line 651, in __init__
self.finish()
File "C:\Python27\Lib\SocketServer.py", line 710, in finish
self.wfile.close()
File "C:\Python27\Lib\socket.py", line 279, in close
self.flush()
File "C:\Python27\Lib\socket.py", line 303, in flush
self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 10053] An established connection was aborted by the software in your host machine
The deadline is a maximum value, once reached it'll fail. And it's failing with
Deadline exceeded while waiting for HTTP response
So you should try to catch that exception and try again.
If the entire operation can't be done in under 60 seconds then there is nothing else to be done, it's a hard limit in GAE that HTTP requests can't exceed 60 seconds.
I'm new to Python (as well as GAE), I'm trying to include gaesessions in my application, this is exactly what I did:
I copied the gaesessions folder to my src folder (the folder includes __init__.py file)
and added this to my working code:
from gaesessions import get_current_session
session = get_current_session()
I received the following error:
Traceback (most recent call last): File "C:\Program
Files\Google\google_appengine\google\appengine\runtime\wsgi.py", line
174, in Handle
result = handler(self._environ, self._StartResponse)
File "C:\Program
Files\Google\google_appengine\lib\webapp2\webapp2.py", line 1519, in
__call__
response = self._internal_error(e)
File "C:\Program
Files\Google\google_appengine\lib\webapp2\webapp2.py", line 1511, in
__call__
rv = self.handle_exception(request, response, e)
File "C:\Program
Files\Google\google_appengine\lib\webapp2\webapp2.py", line 1505, in
__call__
rv = self.router.dispatch(request, response)
File "C:\Program
Files\Google\google_appengine\lib\webapp2\webapp2.py", line 1253, in
default_dispatcher
return route.handler_adapter(request, response)
File "C:\Program
Files\Google\google_appengine\lib\webapp2\webapp2.py", line 1077, in
__call__
return handler.dispatch()
File "C:\Program
Files\Google\google_appengine\lib\webapp2\webapp2.py", line 547, in
dispatch
return self.handle_exception(e, self.app.debug)
File "C:\Program
Files\Google\google_appengine\lib\webapp2\webapp2.py", line 545, in
dispatch
return method(*args, **kwargs)
File "D:....\src\helloworld.py", line 13, in get
session = get_current_session()
File "D:....\src\gaesessions\__init__.py", line 36, in
get_current_session
return _tls.current_session
File "C:\Python27\lib\_threading_local.py", line 193, in
__getattribute__
return object.__getattribute__(self, name)
You've omitted the actual exception from your stack trace, but I'm guessing it's this:
AttributeError: 'local' object has no attribute 'current_session'
If so, you've most likely skipped the middleware configuration step. Create an appengine_config.py per the instructions and restart the dev server; this should resolve your error.