# -*- coding: utf-8 -*-
"""
Created on Thu Jan 10 12:45:14 2013

@author: narasimhapbl.1863
"""

import os
import sys
import subprocess

from PyQt4 import QtGui

class test(QtGui.QMainWindow):
    
    def __init__(self):
        
        super(test,self).__init__()
        self.but = QtGui.QPushButton(self)
        self.but.clicked.connect(self.GetUnc)

    def GetUnc(self):
        
        exist,path = self.GetUncSourcePath('z')
        print exist,path

    def GetUncSourcePath(self,driveLetter):
        
        """
        
        This will return the UNC () path of the network drive    
        
        Usage GetUncSourcePath('P:')
        
        """
    
        UNC_Path = ''
        
        try:

            DriveToCheck = driveLetter[:1]
            
            if os.path.exists('%s:' % DriveToCheck):
                print 'checking %s: drive' % DriveToCheck
                process = subprocess.Popen(["net use","%s:" % DriveToCheck],stdout=subprocess.PIPE,shell=True)
                out,err = process.communicate()
                splitLines = out.splitlines()
                LineSplit = splitLines[1].split()          
                UNC_Path = LineSplit[2]
                
                return (True,UNC_Path)
                
            else:
    
                QtGui.QMessageBox(QtGui.QMessageBox.Critical,'Drive Error','Drive Not Exists')
                return (False,None)
                            
        except Exception as ex:
            
            QtGui.QMessageBox(QtGui.QMessageBox.Critical,'Drive Error',ex.message)
            return (False,None)

if __name__=='__main__':
    app = QtGui.QApplication(sys.argv)
    win = test()
    win.show()
    sys.exit(app.exec_())