Python Basic grammar grooming (II.)

1, gevent use

#-*-coding:utf-8-*-ImportgeventImportPlatform fromGeventImportsubprocessdef_test_shell (script): Excute_data=[]; Err_data=[]; ifPlatform.system () = ="Windows": Popen=subprocess. Popen (script, Shell=false, Stdout=subprocess. PIPE, stderr=subprocess. PIPE) Excute_data=popen.stdout.readlines () err_data=Popen.stderr.readlines () forMsg_lineinchExcute_data:Print "return:%s"%(Msg_line.strip ()) forErr_lineinchErr_data:Print "err:%s"%(Err_line.strip ())defTalk (msg):Print(msg)def_test_spwan (): Gevent.spawn (talk,"Fredirc")if __name__=='__main__': _test_shell ('java-version') _test_spwan () Gevent.sleep (0.5)        #The above example prints out    #Err:java Version "1.6.0_37"    #Err:java (TM) SE Runtime Environment (build 1.6.0_37-b06)    #Err:java HotSpot (TM) Client VM (build 20.12-b01, mixed mode, sharing)    #Fredirc                

2, logging use

ImportLoggingImportOS fromLoggingImportFilehandlerdefGet_logger (): Logger= Logging.getlogger ('Fredric_file') Log_format='% (asctime) s% (filename) s% (Lineno) d% (levelname) s% (message) s'Formatter=logging. Formatter (Log_format) logfile= Os.path.join (Os.path.dirname (Os.path.abspath (__file__)),'Log','Fredric_log.log') Handler= Filehandler (logfile,"a") Handler.setformatter (formatter) Logger.addhandler (handler) Logger.setlevel (logging. ERROR)returnLoggerdefget_logger_console (): Logger= Logging.getlogger ("Fredric_console") Log_format='% (asctime) s% (filename) s% (Lineno) d% (levelname) s% (message) s'Formatter=logging. Formatter (log_format) Console=logging. Streamhandler () Console.setformatter (Formatter) Logger.addhandler (console) Logger.setlevel (logging. DEBUG)returnLoggerlogger_file=Get_logger () logger_console=Get_logger_console ()if __name__=='__main__': Logger_file.error ("Fiel Error") Logger_console.error ("Console Error") Logger_file.info ("Fiel Error") Logger_console.info ("Console Error")        

3. Imp use (similar to Java reflection)

#-*-coding:utf-8-*-ImportImpif __name__=='__main__':        #Get this modulemodule = Imp.load_module ("Test", *imp.find_module ("Test", ["./"]))        #instantiate the class in this moduleTemp=module.__getattribute__("Test")(); #methods included in the execution classTemp.do_staff ()#Printed: Do_staff:test Class        PrintTemp.__str__()#Printed: To_string:test Class    

Python Basic grammar grooming (II.)