python - TypeError: __init__() got an unexpected keyword argument 'parent' -


i building application in google app engine cloud datastore backend.

my model base class

from google.appengine.ext import ndb

class cfcmodel(ndb.model):     """     base model can inherit other models. test     """     created_date = ndb.datetimeproperty(auto_now=true)     modified_date = ndb.datetimeproperty(auto_now_add=true)

the class model inherits 

class praisereport(cfcmodel):     def __init__(self):         self.username = ndb.stringproperty(repeated=true)         self.report = ndb.stringproperty(required=true)         super(praisereport, self).__init__()

i trying create object 

key = praisereportrepository.get_praise_report_key() praise_report_model = praisereport(parent=key) praise_report_model.username = praise_report.username praise_report_model.report = praise_report.report praise_report_model.put()

and following error

error    2016-05-25 09:34:59,882 app.py:1423] exception on /forms/add_praise_report [get] traceback (most recent call last):   file "/users/vinay/app-engine/cm-12/server/lib/flask/app.py", line 1817, in wsgi_app     response = self.full_dispatch_request()   file "/users/vinay/app-engine/cm-12/server/lib/flask/app.py", line 1477, in full_dispatch_request     rv = self.handle_user_exception(e)   file "/users/vinay/app-engine/cm-12/server/lib/flask/app.py", line 1381, in handle_user_exception     reraise(exc_type, exc_value, tb)   file "/users/vinay/app-engine/cm-12/server/lib/flask/app.py", line 1475, in full_dispatch_request     rv = self.dispatch_request()   file "/users/vinay/app-engine/cm-12/server/lib/flask/app.py", line 1461, in dispatch_request     return self.view_functions[rule.endpoint](**req.view_args)   file "/users/vinay/app-engine/cm-12/cfc/decorators/authentication.py", line 62, in authenticate_and_call_member     return func(*args, **kwargs)   file "/users/vinay/app-engine/cm-12/routes/praisereportroutes.py", line 34, in add_report     repo.add(report)   file "/users/vinay/app-engine/cm-12/cfc/data/praisereportrepository.py", line 12, in add     praise_report_model = praisereport(parent=key) typeerror: __init__() got unexpected keyword argument 'parent'

there quite few errors here. main 1 have overridden __init__ method not accept parameters, trying call with parameters. obviously, subclass method should accept same parameters base class, , pass parameters super call - done *args, **kwargs.

however not should overriding __init__ @ here. code have in overridden method not belong there. fields must defined @ class level; not work if define them inside method. move fields out, , remove method altogether.

class praisereport(cfcmodel):     username = ndb.stringproperty(repeated=true)     report = ndb.stringproperty(required=true)

-

Comments

Post a Comment

Popular posts from this blog

PySide and Qt Properties: Connecting signals from Python to QML -

i trying run simple pyside appliccation design made in qml. call function in qml python in separated thread. i have following qml view: import qt 4.7 rectangle { visible: true width: 100; height: 100 color: "lightgrey" text { id: datestr objectname: "datestr" x: 10 y: 10 text: "init text" font.pixelsize: 12 function updatedata(text) { datestr.text = qstr(text) console.log("you said: " + text) } } } here application: some imports.... #!/usr/bin/python import sys import time pyside import qtdeclarative, qtcore pyside.qtgui import qapplication pyside.qtdeclarative import qdeclarativeview the qthread worker.... #worker thread class worker(qtcore.qthread): updateprogress = qtcore.signal(int) def __init__(self, child): qtcore.qthread.__init__(self) self.child = child def run(self):
Read more

c# - DevExpress.Wpf.Grid.InfiniteGridSizeException was unhandled -

Image
when using devexpress, see error: devexpress.wpf.grid.infinitegridsizeexception unhandled message="by default, infinite grid height not allowed since grid rows rendered , hence grid work slowly. fix issue, should place grid container give finite height grid, or should manually specify grid's height or maxheight. note can avoid exception setting gridcontrol.allowinfinitegridsize static property true, in case grid run slowly." the problem dxgrid has infinite height. to fix, set height non-infinite. snoop absolutely invaluable this: if "height" xaml element infinite (i.e. 0 or nan ), can set using one of following: option 1: height="{binding path=actualheight, relativesource={relativesource mode=findancestor, ancestortype=uielement}}" option 2: verticalalignment="stretch" option 3: height="auto" hint: use verticalalignment="stretch" if child of grid <rowdefinition height=
Read more

scala - 'wrong top statement declaration' when using slick in IntelliJ -

Image
i'm porting project scala 2.9 2.10, therefore have use slick instead of scalaquery. i'm using slick 2.1.0 since supports ms access. according this tutorial , upgrade guide changed robs object class , added val robs : why error message wrong top statement declaration , how rid of it? edit: i'm new scala... according this question seems can't put val outside of methods or classes, right? code above directly in packge. right approach slick then? should move code in class or trait? according this changed val robs = tablequery[robs] to object robs extends tablequery(new robs(_)) {} . no warnings or errors anymore. :)
Read more