python - AttributeError: 'NoneType' object has no attribute 'sqlite_db' -


i don't understand how works. got code flaskr example. used work , doesn't.

i getting following error: attributeerror: 'nonetype' object has no attribute 'sqlite_db'

offending line: top.sqlite_db = sqlite_db

from champnotif_v2 import app flask import _app_ctx_stack, g import sqlite3  def get_db():     """opens new database connection if there none yet     current application context.     """     top = _app_ctx_stack.top     if not hasattr(top, 'sqlite_db'):         sqlite_db = sqlite3.connect(app.config['database'])         sqlite_db.row_factory = sqlite3.row         top.sqlite_db = sqlite_db      return top.sqlite_db

__init__.py

from flask import flask app = flask(__name__) app.config.from_pyfile('info.py')  import champnotif_v2.views

info.py

database = "freechamp.db"

it appears top none, not whatever expecting be. therefore _app_ctx_stack.top must none top being set to. need work out why _app_ctx_stack.top none , fix that, or if expected add check before using top in way, example:

top = _app_ctx_stack.top ... if top not none:     top.sqlite_db = sqlite_db

-

Popular posts from this blog

html/hta mutiple file in audio player -

ok started coding .hta application , pretty html page .hta extension , adde mp3 player , did work <object data="test.mp3" type="audio/mp3" width="200" height="40"> <param name="src" value="test.mp3"> <param name="autostart" value="0"> </object> but it's 1 song playing again , again , plz there way add multiple files playlist believe it's should added "src" parameters not sure, i'm starting did add "," in between , , tried ";" none of them working i'm waiting answers :d i wanna know if can show me how become familiar tag see it's helpful , powerful activex, audio,video,pdf .... files i'm waiting impatiently [i don't know object, plz plz more clear] get inspired example hta_audio_player.hta <html> <head> <title>hackoo audio player playlist hackoo 2014</title> <hta:app...
Read more

debugging - Reference - What does this error mean in PHP? -

what this? this number of answers warnings, errors , notices might encounter while programming php , have no clue how fix. community wiki, invited participate in adding , maintaining list. why this? questions "headers sent" or "calling member of non-object" pop on stack overflow. root cause of questions same. answers questions typically repeat them , show op line change in his/her particular case. these answers not add value site because apply op's particular code. other users having same error can not read solution out of because localized. sad, because once understood root cause, fixing error trivial. hence, list tries explain solution in general way apply. what should here? if question has been marked duplicate of this, please find error message below , apply fix code. answers contain further links investigate in case shouldn't clear general answer alone. if want contribute, please add "favorite" error message, warning or notic...
Read more