Error in app: cannot unpack non-iterable NoneType object

Константин Комков

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Jun 20, 2019, 5:21:28 AM6/20/19

to web2py-users

I have that string in controller:

res,flag=send_application(msg,entrant_XML)

and send_application function:

def send_application(msg,entrant_XML):
 #my code
 return('My message',False)

I get error:

Ticket ID

46.73.180.207.2019-06-20.10-47-49.e820b49a-8731-495f-9156-0d75ad265046

<class 'TypeError'> cannot unpack non-iterable NoneType object

Версия

web2py™	Version 2.18.5-stable+timestamp.2019.04.08.04.22.03
Python	Python 3.7.3: C:\Python\python.exe (prefix: C:\Python)

Traceback

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Traceback (most recent call last):
  File ".\gluon\restricted.py", line 219, in restricted
    exec(ccode, environment)
  File "C:\inetpub\wwwroot\applications\application\controllers/bak.py", line 2101, in <module>
  File ".\gluon\globals.py", line 421, in <lambda>
    self._caller = lambda f: f()
  File "C:\inetpub\wwwroot\applications\application\controllers/bak.py", line 1625, in send_app
    res,flag=send_application(msg,entrant_XML)
TypeError: cannot unpack non-iterable NoneType object

Error snapshot

TypeError(cannot unpack non-iterable NoneType object)

inspect attributes

Frames

File C:\inetpub\wwwroot\gluon\restricted.py in restricted at line 219 код аргументы переменные
File C:\inetpub\wwwroot\applications\application\controllers\bak.py in <module> at line 2101 код аргументы переменные
File C:\inetpub\wwwroot\gluon\globals.py in <lambda> at line 421 код аргументы переменные

File C:\inetpub\wwwroot\applications\application\controllers\bak.py in send_app at line 1625 код аргументы переменные

Function argument list

()

Code listing

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1629.         )
    )
    if form.process(formname='form',onvalidation=check_agreement).accepted:
        msg=create_application(rectorRank,rectorName,vuzName)
        entrant_XML=create_XML_entrant(form.vars.abit_pass)
        res,flag=send_application(msg,entrant_XML)
        if flag:
            heading = ''
            statement = ''
            clear_abit_app()

Variables

res	undefined
flag	undefined
global send_application	<function send_application>
msg	'<div align="right">My text</html>'
entrant_XML	'<?xml version="1.0" ?><entrant>\n <personaldat.../reg>\n </exam>\n </marks>\n </entrant>'

Константин Комков

unread,

Jun 20, 2019, 1:30:30 PM6/20/19

to web2py-users

I need add more information. Can error may be caused if my function don't have one condition:

def send_application(msg,entrant_XML):
    #Letter for operator
    try:
        oper = mail.send('oper...@domen.ru','Theme','Letter text...',attachments = files)
    except Exception:
        oper = False

    #Letter for entrant
    try:
        abit = mail.send(session.abit_email,'Theme','Letter text...')
    except Exception:
        abit = False

    if ((oper==True) & (abit==True)):
        return ('My message',True)
    elif ((oper==True) & (abit==False)):
        return ('My message',False)
    elif ((oper==False) & (abit==True)):
        return ('My message',False)

Here I don't have that:

    else ((False) & (False)):
        return ('My message',False)

Now I get return ('My message',True) in 25 percent of the time. How can I improve that result? Maybe I need take several attemts, but without sending two the same letter on one email. We have own mail server.

Val K

unread,

Jun 20, 2019, 3:19:34 PM6/20/19

to web2py-users

1. & - is bitwise operator (just in case)

2. why not just return ('My message', oper and abit)

Константин Комков

unread,

Jun 22, 2019, 3:04:41 AM6/22/19

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Val K, I know that & is betwice operator) I can not return ('My message', oper and abit) becouse string 'My message' is different like:

if ((oper==True) & (abit==True)):
        return ('My message 1',True)
    elif ((oper==True) & (abit==False)):
        return ('My message 2',False)
    elif ((oper==False) & (abit==True)):
        return ('My message 3',False)

I want to know what I need to do for function mail return me true and if it return me false i repeat call that function (maybe 5 times like call to databese in web2py) for improve that:

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