Python-сообщество

for elem in g.doc.select("//a[@class='mainHitsSection catalogLvl2ItemHd']"):
        print "Категория: " + elem.attr("href")

from twisted.internet import protocol, reactor
import time
import threading
import redis
host = 'localhost'
port = 9879
class ListenRedis(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)
        print("Init redis")
        self.redis = redis.Redis()
        self.pubsub = self.redis.pubsub()
        self.pubsub.subscribe("test_sub")
        self.runing = True
        
    def run(self):
        for item in self.pubsub.listen():
            self.work(item)
                
    def work(self, item):
        if item["type"] != "message":
            return
            
        print(item)
        factory.send_data(item["data"])
class Twist_client(protocol.Protocol):
            
    def dataReceived(self, data):
        print (data.decode())
        
        if data.decode() == "OK":
            print("Server say say OK")
        
class Twist_Factory(protocol.ClientFactory):
    protocol = Twist_client
    client = Twist_client()
    
    def clientConnectionFailed(self, connector, reason):
        print( '1connection failed:', reason.getErrorMessage())
        time.sleep(2)
        connector.connect()
    def buildProtocol(self, addr):
        print ('Connected.')
        return Twist_client()        
    def clientConnectionLost(self, connector, reason):
        print( '2connection lost:', reason.getErrorMessage())
        time.sleep(2)
        connector.connect()
        
    def send_data(self, data):
        re.transport.write(data)
        
print("Start")
lis = ListenRedis()
lis.start()
        
factory = Twist_Factory()
re = reactor.connectTCP(host, port, factory)
reactor.run()

t ['ABC' ]={'test_value1':1,'test_value2':2}

easy_install tarantool

>>> import tarantool
>>> help(tarantool)

def get(arg):
    attributes['__table_args__'] = {'extend_existing': True,  # allows create same objects at one runtime
                                                  'prefixes': ["TEMPORARY"]}  # always creating temporary table
    return type(result.name, (Base,), attributes)  # returns new class with Properties of Object instance

>>> from app import get, engine
>>> from sqlalchemy.schema import CreateTable
>>> sim = get('sim_number')
>>> sim = get('sim_number') # допустим, понадобилось создать ещё один экземпляр
/usr/local/lib/python3.4/dist-packages/sqlalchemy/ext/declarative/clsregistry.py:167: SAWarning: This declarative base already contains a class with the same class name and module name as bill_classes.sim_number, and will be replaced in the string-lookup table.
  existing.add_item(cls)
Traceback (most recent call last):
  File "/usr/lib/python3.4/code.py", line 90, in runcode
    exec(code, self.locals)
  File "<input>", line 1, in <module>
  File "/media/spicin/7EB7608F698AE718/beeapi/bill_classes.py", line 139, in get
    return type(result.name, (Base,), attributes)  # returns new class with Properties of Object instance
  File "/usr/local/lib/python3.4/dist-packages/sqlalchemy/ext/declarative/api.py", line 55, in __init__
    _as_declarative(cls, classname, cls.__dict__)
  File "/usr/local/lib/python3.4/dist-packages/sqlalchemy/ext/declarative/base.py", line 254, in _as_declarative
    **table_kw)
  File "/usr/local/lib/python3.4/dist-packages/sqlalchemy/sql/schema.py", line 396, in __new__
    table._init_existing(*args, **kw)
  File "/usr/local/lib/python3.4/dist-packages/sqlalchemy/sql/schema.py", line 548, in _init_existing
    self._extra_kwargs(**kwargs)
  File "/usr/local/lib/python3.4/dist-packages/sqlalchemy/sql/schema.py", line 552, in _extra_kwargs
    self._validate_dialect_kwargs(kwargs)
  File "/usr/local/lib/python3.4/dist-packages/sqlalchemy/sql/base.py", line 282, in _validate_dialect_kwargs
    "named <dialectname>_<argument>, got '%s'" % k)
TypeError: Additional arguments should be named <dialectname>_<argument>, got 'prefixes'

def send_text(msg):
     text["state"]='normal'
     text.delete(1.0, END)
     text.insert("end", msg.decode('866'))
     text.update()
     text["state"]='disable'
...
cmd='call export.bat'
 proba=subprocess.check_output(cmd, stderr=subprocess.STDOUT)
 while True:
    s = proba.stdout.readline()
    if not s: break
    send_text(s)

cmd='bat\\Helpful information\\' + a
 proba=subprocess.check_output(cmd, stderr=subprocess.STDOUT)
 send_text(proba)

#!/usr/bin/python
# -*- coding: utf-8 -*-
from PyQt4 import QtCore, QtGui, QtOpenGL
from Webcam import Ui_MainWindow
import sys, cv, cv2, numpy
class Web(QtGui.QMainWindow, Ui_MainWindow):
    def __init__(self, parent = None):
        QtGui.QMainWindow.__init__(self, parent)
        self.setupUi(self)
class MyView(QtGui.QGraphicsView):
    def __init__(self,*args):
        QtGui.QGraphicsView.__init__(self,*args)
        self.scene = QtGui.QGraphicsScene()
        self.scene.addPixmap('1.png')
        view = MyView(self.scene)  
capture = cv.CaptureFromCAM(-1)
while True:
    img = cv.QueryFrame(capture)
    cv.ShowImage("WEB-camera", img)
    if cv.WaitKey(10) == 27:
        break
cv.DestroyWindow("WEB-camera")
if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    MainApp = Web()
    
    
    MainApp.show()
    sys.exit(app.exec_())