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mamta_parida

Aug-24-2018, 05:23 AM
I created a GUI using tkinter having nine different classes and all classes are in one one script file. I'm getting issue when trying to use one variable define in one class function of a file and used in another file of a class but getting error like not able to import or global variable not define
I tried all ways to import module such as
Import X, from X import *, from X import X, from X import a,b,c and X = __import__()
Any solution to this issue will be appreciated

Larz60+

Aug-24-2018, 01:37 PM
show code.
You need to instantiate (in the second file) the class that you want to get information from (in the first file).
pseudo example:

import X

# ... 
class myClass:
    def __init__(self):
        xinstance = X.xclassname(args)
        my value = xinstance.value
replace xinstcane with your name, and xclassname with name of class in X, and replace args with any values needed by x class.
note this is a new instance of X, so independent for any other instances of same class.

mamta_parida

Aug-27-2018, 03:32 AM
I want to use ser(Serial communication) which is define in Testing.py file. The code for the same is mentioned below. Whaatever you mentioned above i tired but getting error for that also. Posting my code below
Testing.py
from tkinter import *
import tkMessageBox
import Tkinter
from PIL import Image, ImageTk
import tkinter as Tkinter
import tkinter.messagebox as box
from tkMessageBox import *
from random import randint
import serial
from serial import tools
from serial.tools import list_ports
import serial.tools.list_ports
import binascii
import sys, string, os,subprocess
import time
import tkFileDialog
import glob
from tkFileDialog import askopenfilename
from tkFileDialog import *
import PIL
from ResultAuto_ITOM import AutomationTestingPage_ITOM
from ResultAuto_ITOM import ResultPage_Auto_ITOM

ser = ''


class MenuBar(Tkinter.Menu):
    def __init__(self, parent):
        Tkinter.Menu.__init__(self, parent)

        self.text = Text()
        self.text.pack()

        fileMenu = Tkinter.Menu(self, tearoff=False)
        self.add_cascade(label="File", underline=0, menu=fileMenu)

        fileMenu.add_command(label="Open Config File", underline=1, command=self.OpenFile)
        fileMenu.add_command(label="Save", underline=1, command=self.file_save)
        fileMenu.add_command(label="Exit", underline=1, command=self.quit)

        editMenu = Tkinter.Menu(self, tearoff=False)
        self.add_cascade(label="Edit", underline=0, menu=editMenu)
        editMenu.add_command(label="Undo            Ctrl+z       ", underline=1)
        editMenu.add_command(label="Redo            Ctrl+Shift+z ", underline=1)
        editMenu.add_command(label="Cut               Ctrl+x       ", underline=1)
        editMenu.add_command(label="Copy            Ctrl+c       ", underline=1)
        editMenu.add_command(label="Paste            Ctrl+v       ", underline=1)

        settingMenu = Tkinter.Menu(self, tearoff=False)
        self.add_cascade(label="Setting", underline=0, menu=settingMenu)

        submenu1 = Tkinter.Menu(settingMenu)
        submenu1.add_command(label="Start Communication", underline=1,command=self.Start_Communication)
        submenu1.add_command(label="Stop Communication", underline=1,command=self.Stop_Communication)
        settingMenu.add_cascade(label="System Settings",menu=submenu1, underline=0)

        helpMenu = Tkinter.Menu(self, tearoff=False)
        self.add_cascade(label="Help", underline=0, menu=helpMenu)
        #helpMenu.add_command(label="Help", underline=1)
        helpMenu.add_command(label="About", underline=1, command=self.About)

    def Start_Communication(self):
        #start =  TestingPage(self)
        #start.clicked()
        #TestingPage.clicked
        pass

    def Stop_Communication(self):
        #TestingPage.disconnect
        pass

    def quit(self):
        sys.exit(0)

    def OpenFile(self):
        #name = askopenfilename()
        file = tkFileDialog.askopenfilename()
        os.system(file)

    def file_save(self):
        f = asksaveasfile(mode='w', defaultextension=".txt")
        text2save = str(self.text.get(0.0, END))
        #f.write(text2save)
        #f.close()

    def About(self):
        box.showinfo('About', 'Version 1.1 \n'
                             'An Application to test the product using Serial Communication Protocol')

## Its the Testing page which contains six function such as init, thirdpage,automation, manual, resultauto and previousprg  ##
##  a. The init function where the child frame is initialized  ##
##  b. Third page function contains all the button and text button which appear in Testing page  ##
##  c. Automation function used to call the Automation testing page which contains the test related to automation  ##
##  d. Manual function used to call the Manual testing page which includes the test related to manual ##
##  e. Resultauto function used to call ResultAUto page and hide the TestingPage ##
##  f. Previousprg function used to call the ProgrammingPage window and hide the TestingPage  ##

class TestingPage(Tkinter.Tk):

    def __init__(self, child):
        Tkinter.Tk.__init__(self, child)
        self.child = child
        menubar = MenuBar(self)
        self.config(menu=menubar)
        self.thirdpage()

    def thirdpage(self):
        self.grid()
        self.title(
            "                                                                                                                                                                   TEST BENCH                                                                                               ")
        self.geometry("1280x800")

        self.labelframe = Tkinter.LabelFrame(self)
        self.labelframe.pack(fill="both", padx=60, pady=40, expand="yes")

        self.lbl = Tkinter.Label(self.labelframe, text="TESTING", width=28, font=("Arial Bold", 18))
        self.lbl.place(x=320, y=10)

        self.labelframe1 = Tkinter.LabelFrame(self.labelframe)
        self.labelframe1.place(x=50, y=60, height=570, width=1060)

        self.lbl5 = Tkinter.Label(self.labelframe1, text="SERIAL COMMUNICATION :", width=22, font=("Arial Bold", 12))
        self.lbl5.place(x=35, y=70)

        self.lbl6 = Tkinter.Label(self.labelframe1, text="COM PORT", width=10, font=("Arial Bold", 11))
        self.lbl6.place(x=35, y=150)

        ports = self.serial_ports()

        self.dropVar = StringVar(self.labelframe1)
        self.dropVar.set("")
        self.dropMenu = OptionMenu(self.labelframe1, self.dropVar, *ports, command=self.func)
        self.dropMenu.pack(padx=8, pady=8, side=LEFT)
        self.dropMenu.configure(width=8, font=("Arial Bold", 12))
        self.dropMenu.place(x=160, y=145)

        self.lbl7 = Tkinter.Label(self.labelframe1, text="BAUD RATE", width=10, font=("Arial Bold", 11))
        self.lbl7.place(x=310, y=150)

        self.dropVar1 = StringVar(self.labelframe1)
        self.dropVar1.set("")
        self.dropMenu1 = OptionMenu(self.labelframe1, self.dropVar1, 4800, 9600, 19200, 38400, 115200,command=self.func1)
        self.dropMenu1.pack(padx=8, pady=8, side=LEFT)
        self.dropMenu1.configure(width=8, font=("Arial Bold", 12))
        self.dropMenu1.place(x=435, y=145)

        self.btn8 = Tkinter.Button(self.labelframe1, text="CONNECT", width=10, font=("Arial Bold", 11),
                                   command=self.clicked)
        self.btn8.place(x=590, y=145)

        self.btn9 = Tkinter.Button(self.labelframe1, text="DISCONNECT", width=12, font=("Arial Bold", 11),
                                   command=self.disconnect)
        self.btn9.place(x=730, y=145)

        self.lbl3 = Tkinter.Label(self.labelframe1, text="PRODUCT SELECTION :", width=20, font=("Arial Bold", 12))
        self.lbl3.place(x=30, y=230)

        product_selection = ['ITOM', 'SMARTSTAT_EXTENSION']
        self.variable = StringVar(self.labelframe1)
        self.w = OptionMenu(self.labelframe1, self.variable, *product_selection,command=self.product_sel)
        self.w.pack(padx=8, pady=8, side=LEFT)
        self.w.configure(width=22, font=("Arial Bold", 11))
        self.w.place(x=35, y=290)
        self.variable.set("")

        self.btn6 = Tkinter.Button(self.labelframe, text="PREVIOUS", width=12, font=("Arial Bold", 14),
                                   command=self.previousprg)
        self.btn6.place(x=750, y=650)

        self.btn7 = Tkinter.Button(self.labelframe, text="NEXT", width=12, font=("Arial Bold", 14),
                                   command=self.resultauto)
        self.btn7.place(x=950, y=650)

    def serial_ports(self):

        ports = ['COM%s' % (i + 1) for i in range(256)]
        result = []
        for port in ports:
            try:
                s = serial.Serial(port)
                s.close()
                result.append(port)
            except (OSError, serial.SerialException):
                pass
        return result

    def clicked(self):
        global ser
        COM_Port = self.port
        Baud_Rate = self.baud
        self.btn8.config(state="disable")
        self.btn9.config(state="active")
        ser = serial.Serial(COM_Port, Baud_Rate)
        ser.isOpen()
        #return ser

    def product_sel(self, value):
        self.product = value
        print self.product

    def func(self, value):
        self.port = value

    def func1(self, value):
        self.baud = value

    def disconnect(self):
        self.btn8.config(state="active")
        self.btn9.config(state="disable")
        ser.close()

    def product_sel(self, value):
        self.product = value

        if self.product == "ITOM":
                self.lbl4 = Tkinter.Label(self.labelframe1, text="TESTING :", width=8, font=("Arial Bold", 12))
                self.lbl4.place(x=38, y=370)
                self.CheckVar1 = IntVar()
                self.C1 = Tkinter.Checkbutton(self.labelframe1, text="Automation Testing", variable=self.CheckVar1,onvalue=1, offvalue=1, height=5, width=20, command=self.auto_itom)
                self.C1.pack(padx=8, pady=8, side=LEFT)
                self.C1.configure(width=20, font=("Arial Bold", 10))
                self.C1.place(x=60, y=400)
                self.C2 = Tkinter.Checkbutton(self.labelframe1, text="Manual testing", onvalue=0,variable=self.CheckVar1,state="disable", offvalue=1, height=5, width=20)
                self.C2.pack(padx=8, pady=8, side=LEFT)
                self.C2.configure(width=18, font=("Arial Bold", 10))
                self.C2.place(x=53, y=450)

        elif self.product == "SMARTSTAT_EXTENSION":
                self.lbl4 = Tkinter.Label(self.labelframe1, text="TESTING :", width=8, font=("Arial Bold", 12))
                self.lbl4.place(x=38, y=370)
                self.CheckVar1 = IntVar()
                self.C1 = Tkinter.Checkbutton(self.labelframe1, text="Automation Testing", variable=self.CheckVar1,onvalue=1,offvalue=1, height=5, width=20, command=self.auto_smart)
                self.C2 = Tkinter.Checkbutton(self.labelframe1, text="Manual testing", onvalue=0, variable=self.CheckVar1,offvalue=0, height=5, width=20,command=self.manual_smart)
                self.C1.pack(padx=8, pady=8, side=LEFT)
                self.C1.configure(width=20, font=("Arial Bold", 10))
                self.C1.place(x=60, y=400)
                self.C2.pack(padx=8, pady=8, side=LEFT)
                self.C2.configure(width=18, font=("Arial Bold", 10))
                self.C2.place(x=53, y=450)
        else:
                pass


    def auto_itom(self):
        AutomationTestingPage_ITOM(self)

    def auto_smart(self):
        AutomationTestingPage_SMART(self)

    def manual_smart(self):
        ManualTestingPage_SMART(self)

    def resultauto(self):
        ResultPage_Auto_ITOM(self)
        self.withdraw()

    def previousprg(self):
        ProgrammingPage(self)
        self.withdraw()
I'm using the serial port in AutomationTesting.py file. The code for same is also mentioned below
AutomationTesting.py
from tkinter import *
import tkMessageBox
import Tkinter
from PIL import Image, ImageTk
import tkinter as Tkinter
import tkinter.messagebox as box
from tkMessageBox import *
from random import randint
import serial
from serial import tools
from serial.tools import list_ports
import serial.tools.list_ports
import binascii
import sys, string, os,subprocess
import time
import tkFileDialog
import glob
from tkFileDialog import askopenfilename
from tkFileDialog import *
import PIL
import Testing
#from Testing import TestingPage
#from Testing import ser
#import Testing
#from Testing import *


output = ''
serial_no = ''



## Its the Automation Testing Page which contains five function such as init, fourthpage, data, clicked, and out function  ##
##  a. The init function where the child frame is initialized  ##
##  b. Fourth page function contains all the button and text button which appear in Automation testing page  ##
##  c. Data function where the packet structure is defined for particular button  ##
##  d. Clicked function which call the data function and pass the result to out fucntion ##
##  e. Out function where all the output value is received from the clicked function and stored in doc format  ##

class AutomationTestingPage_ITOM(Tkinter.Frame):
	
    def __init__(self, child):
        Tkinter.Frame.__init__(self, child)
        autotest = Testing.TestingPage()
        value = autotest.value
        self.child = child
        self.fourthpage()

    def fourthpage(self):
        self.grid()

        self.fourthpage = Tkinter.Toplevel(self)
        self.fourthpage.wm_geometry("1280x800")
        self.fourthpage.title(
            "                                                                                                                                                                                               TEST BENCH                                          ")

        self.lbl = Tkinter.Label(self.fourthpage, text="AUTOMATION TESTING - ITOM", width=28, font=("Arial Bold", 18))
        self.lbl.place(x=450, y=30)

        self.labelframe1 = Tkinter.LabelFrame(self.fourthpage)
        self.labelframe1.pack(fill="both", padx=90, pady=90, expand="yes")

        self.label = Tkinter.Label(self.labelframe1, text="SERIAL NUMBER", width=15, font=("Arial Bold", 12))
        self.label.place(x=40, y=30)

        sv = StringVar(self.labelframe1)
        sv.trace("w", lambda name, index, mode, sv=sv: self.part(sv))
        self.txt = Tkinter.Entry(self.labelframe1, textvariable=sv, width=22, font=("Arial Bold", 14))
        self.txt.place(x=240, y=25)

        self.CheckVar1 = IntVar()
        self.C1 = Tkinter.Checkbutton(self.labelframe1, text="DAUGTHER BOARD DISPLAY TEST", variable=self.CheckVar1,
                                      onvalue=1, offvalue=0, height=5, width=35, command=self.clicked)
        self.C1.pack(padx=10, pady=10, side=LEFT)
        self.C1.configure(width=30, font=("Arial Bold", 13))
        self.C1.place(x=140, y=60)

        self.txt1 = Tkinter.Entry(self.labelframe1, width=15, font=("Arial Bold", 16))
        self.txt1.place(x=530, y=95)

        self.btn6 = Tkinter.Button(self.labelframe1, text="PASS", width=8, font=("Arial Bold", 13))
        self.btn6.place(x=780, y=92)

        self.CheckVar2 = IntVar()
        self.C2 = Tkinter.Checkbutton(self.labelframe1, text="SPI FLASH TEST", variable=self.CheckVar2,
                                      onvalue=1, offvalue=0, height=5, width=20)
        self.C2.pack(padx=10, pady=10, side=LEFT)
        self.C2.configure(width=20, font=("Arial Bold", 13))
        self.C2.place(x=115, y=130)

        self.txt2 = Tkinter.Entry(self.labelframe1, width=15, font=("Arial Bold", 16))
        self.txt2.place(x=530, y=163)

        self.btn7 = Tkinter.Button(self.labelframe1, text="PASS", width=8, font=("Arial Bold", 13))
        self.btn7.place(x=780, y=162)

        self.CheckVar3 = IntVar()
        self.C3 = Tkinter.Checkbutton(self.labelframe1, text="ITOM-RS485 TEST", variable=self.CheckVar3,
                                      onvalue=1, offvalue=0, height=5, width=20)
        self.C3.pack(padx=10, pady=10, side=LEFT)
        self.C3.configure(width=20, font=("Arial Bold", 13))
        self.C3.place(x=122, y=200)

        self.txt3 = Tkinter.Entry(self.labelframe1, width=15, font=("Arial Bold", 16))
        self.txt3.place(x=530, y=233)

        self.btn8 = Tkinter.Button(self.labelframe1, text="PASS", width=8, font=("Arial Bold", 13))
        self.btn8.place(x=780, y=230)

        self.CheckVar4 = IntVar()
        self.C4 = Tkinter.Checkbutton(self.labelframe1, text="BLUETOOTH TEST", variable=self.CheckVar4,
                                      onvalue=1, offvalue=0, height=5, width=20)
        self.C4.pack(padx=10, pady=10, side=LEFT)
        self.C4.configure(width=20, font=("Arial Bold", 13))
        self.C4.place(x=124, y=270)

        self.txt4 = Tkinter.Entry(self.labelframe1, width=15, font=("Arial Bold", 16))
        self.txt4.place(x=530, y=301)

        self.btn9 = Tkinter.Button(self.labelframe1, text="PASS", width=8, font=("Arial Bold", 13))
        self.btn9.place(x=780, y=298)

        self.CheckVar5 = IntVar()
        self.C5 = Tkinter.Checkbutton(self.labelframe1, text="SENSOR TEST", variable=self.CheckVar5,
                                      onvalue=1, offvalue=0, height=5, width=20)
        self.C5.pack(padx=10, pady=10, side=LEFT)
        self.C5.configure(width=15, font=("Arial Bold", 13))
        self.C5.place(x=132, y=340)

        self.txt5 = Tkinter.Entry(self.labelframe1, width=15, font=("Arial Bold", 16))
        self.txt5.place(x=530, y=369)

        self.btn10 = Tkinter.Button(self.labelframe1, text="PASS", width=8, font=("Arial Bold", 13))
        self.btn10.place(x=780, y=368)

        self.CheckVar6 = IntVar()
        self.C6 = Tkinter.Checkbutton(self.labelframe1, text="LED's TEST", variable=self.CheckVar6,
                                      onvalue=1, offvalue=0, height=5, width=20)
        self.C6.pack(padx=10, pady=10, side=LEFT)
        self.C6.configure(width=10, font=("Arial Bold", 13))
        self.C6.place(x=145, y=410)

        self.txt6 = Tkinter.Entry(self.labelframe1, width=15, font=("Arial Bold", 16))
        self.txt6.place(x=530, y=437)

        self.btn11 = Tkinter.Button(self.labelframe1, text="PASS", width=8, font=("Arial Bold", 13))
        self.btn11.place(x=780, y=438)

        self.CheckVar7 = IntVar()
        self.C7 = Tkinter.Checkbutton(self.labelframe1, text="RS-485 TEST", variable=self.CheckVar7,
                                      onvalue=1, offvalue=0, height=5, width=20)
        self.C7.pack(padx=10, pady=10, side=LEFT)
        self.C7.configure(width=10, font=("Arial Bold", 13))
        self.C7.place(x=145, y=480)

        self.txt7 = Tkinter.Entry(self.labelframe1, width=15, font=("Arial Bold", 16))
        self.txt7.place(x=532, y=507)

        self.btn12 = Tkinter.Button(self.labelframe1, text="PASS", width=8, font=("Arial Bold", 13))
        self.btn12.place(x=780, y=508)

    def part(self, sv):
        global part
        part = sv
        return part.get()

    def data_tx(self):
        element = [0x4D, 0x08, 0xFF, 0x06, 0x1A, 0x52]
        data = bytearray(element)
        ser.write(data)
        receivedata = (ser.read(7))
        data1 = binascii.b2a_hex(receivedata)
        data2 = ord(receivedata[6])
        return data2

    def clicked(self):
        global data2
        self.txt1.insert(END, self.data_tx())
        self.txt1.delete(2, END)
        text1 = self.data_tx()

        if text1 == 18:
            self.btn6.configure(bg="green", fg="black", text="PASS", command=self.out)
            return "TEST PASS"
        else:
            self.btn6.configure(bg="red", fg="black", text="FAIL", command=self.out)
            return "TEST FAIL"

    def out(self):
        global output,serial_no
        output = self.clicked()
        serial_no = part.get()
        file = open('Automation_Test_Report.doc', 'w')
        file.write("                             TEST RESULT - AUTOMATION ITOM                      \n")
        file.write("                            -------------------------------                     \n")
        file.write("\n")
        file.write("\n")
        file.write("TEST SUMMARY:\n")
        file.write("\n")
        file.seek(0, 1)
        file.write("SERIAL NO:")
        file.seek(3, 1)
        file.write(serial_no)
        file.write("\n")
        file.write("\n")
        file.write("********************************************************************************\n")
        file.write("   TEST NUMBER                     TEST NAME                    TEST RESULT     \n")
        file.write("********************************************************************************\n")
        file.write("\n")
        file.seek(7, 1)
        file.write("1")
        file.seek(20, 1)
        file.write("DAUGTHER BOARD DISPLAY TEST")
        file.seek(10, 1)
        file.write(output)
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("\n")
        file.write("********************************************************************************\n")
        file.close()
The error which i recieved is 
Error:
Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 1541, in __call__
    return self.func(*args)
  File "D:\PyCharm\Main_Project_75F\Separate_GUI_Class\Testing.py", line 245, in auto_itom
    AutomationTestingPage_ITOM(self)
  File "D:\PyCharm\Main_Project_75F\Separate_GUI_Class\ResultAuto_ITOM.py", line 44, in __init__
    autotest = Testing.TestingPage()
Error:
Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 1541, in __call__
    return self.func(*args)
  File "D:\PyCharm\Main_Project_75F\Separate_GUI_Class\ResultAuto_ITOM.py", line 178, in clicked
    self.txt1.insert(END, self.data_tx())
  File "D:\PyCharm\Main_Project_75F\Separate_GUI_Class\ResultAuto_ITOM.py", line 170, in data_tx
    ser.write(data)
NameError: global name 'ser' is not defined

Larz60+

Aug-27-2018, 11:18 AM
the third line of this sequence is the culprit:
    def __init__(self, child):
        Tkinter.Frame.__init__(self, child)
        autotest = Testing.TestingPage()
The first error message doesn't seem to be complete. Did you post the whole error?
There should be more that explains what the issue is.
somewhere in the __init__ method of AutomationTestingPage_ITOM class you need to define ser
(self.ser = whatever)
then when referencing ser in other methods use self.ser
example in data_tx method,
def data_tx(self):
        element = [0x4D, 0x08, 0xFF, 0x06, 0x1A, 0x52]
        data = bytearray(element)
        self.ser.write(data)
        receivedata = (self.ser.read(7))
        data1 = binascii.b2a_hex(receivedata)
        data2 = ord(receivedata[6])
        return data2

mamta_parida

Aug-27-2018, 11:29 AM
The above mentioned things i tried as you mentioned previously in the comment.
Actually ser is define in Testing.py class where i'm selecting the serial port and baud rate and same variable i want to use in AutomationTesting.py file particularly in data function to write the data using serial port. But while compiling the script i'm getting error at that particular line in ser.write.
Error:
Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 1541, in __call__
    return self.func(*args)
  File "D:\PyCharm\Main_Project_75F\Separate_GUI_Class\AutomationTesting_ITOM.py", line 176, in clicked
    self.txt1.insert(END, self.data_tx())
  File "D:\PyCharm\Main_Project_75F\Separate_GUI_Class\AutomationTesting_ITOM.py", line 168, in data_tx
    ser.write(data)
AttributeError: 'str' object has no attribute 'write'

Larz60+

Aug-27-2018, 11:33 AM
do you mean here:
#from Testing import ser
Not that it's commented out, so never imported

mamta_parida

Aug-27-2018, 11:49 AM
If uncommented also its showing error that can't import ser

Larz60+

Aug-27-2018, 12:14 PM
then it needs to be installed, or check docs (may be serial or some other spelling)

mamta_parida

Aug-28-2018, 03:04 AM
Serial port was working in other one so i don't think serial port issue

Larz60+

Aug-28-2018, 08:49 AM
what was other one?
did it use the same serial package?
And I assume that it was running on same computer and was python script, is that correct?
the error is on the method write, and I don't see that command in the testing package (if I have the right one), please look at this and verify it's the correct package: https://pythonhosted.org/testing/#introduction
If so, look at available methods.
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