python - I have error 'Attempt to use a closed connection.' -


i have problems code. so, want add data accces writing in form. (i not in programming).

from tkinter import * import pypyodbc import ctypes  form=tk () form.title ("add data") form.geometry ('400x200')  #create connection con = pypyodbc.connect('driver={microsoft access driver (*.mdb)};uid=admin;usercommitsync=yes;threads=3;safetransactions=0;pagetimeout=5;maxscanrows=8;maxbuffersize=2048;fil={ms access};driverid=25;defaultdir=c:/users/hp/desktop/pitl;dbq=c:/users/hp/desktop/pitl/pitl.mdb;') cursor = con.cursor ()  = entry (form, width=20, font="arial 16") a.pack () b = entry (form, width=20, font="arial 16") b.pack ()  def add (event):     cursor.execute ("insert crime (`number_of_article`, `id_of_criminal`) values (?, ?)", (a, b))  con.commit () cursor.close () con.close ()  button=button(form, text = 'push me') button.pack () button.bind ('<button-1>', add)  form.mainloop ()

my error is:

exception in tkinter callback traceback (most recent call last):   file "c:\users\hp\appdata\local\programs\python\python36-32\lib\tkinter\__init__.py", line 1699, in __call__     return self.func(*args)   file "c:\users\hp\desktop\pitl\add data.py", line 19, in add     cursor.execute ("insert crime (`number_of_article`, `id_of_criminal`) values (?, ?)", (a, b))   file "c:\users\hp\appdata\local\programs\python\python36-32\lib\site-packages\pypyodbc-1.3.4-py3.6.egg\pypyodbc.py", line 1470, in execute     self._free_stmt(sql_close)   file "c:\users\hp\appdata\local\programs\python\python36-32\lib\site-packages\pypyodbc-1.3.4-py3.6.egg\pypyodbc.py", line 1987, in _free_stmt     raise programmingerror('hy000','attempt use closed connection.') pypyodbc.programmingerror: ('hy000', 'attempt use closed connection.')

also, if change code (below) a = '*any number*' b = '*any number*', program work

a = entry (form, width=20, font="arial 16") a.pack () b = entry (form, width=20, font="arial 16") b.pack ()

you're closing connections before add called, move close calls bottom of code.


Comments

Post a Comment

Popular posts from this blog

ubuntu - PHP script to find files of certain extensions in a directory, returns populated array when run in browser, but empty array when run from terminal -

i running os ububtu 16.04. ultimate goal able run php script cron job every minute. here php script located @ /var/www/html/tests/test/index.php : <?php $directorypath = $_server['document_root']."/tests/test/data/"; echo "directorypath: $directorypath<br><br>";//check $imagefilepathsarray = glob($directorypath . "*.{png,gif}", glob_brace); echo "<br><br>imagefilepathsarray: "; print_r($imagefilepathsarray);//check ?> when open php script in browser visiting url my-ip-address/tests/test/index.php , get: directorypath: /var/www/html/tests/test/data/ imagefilepathsarray:array( [0] => /var/www/html/tests/test/data/pic.png [1] => /var/www/html/tests/test/data/pic.gif ) before writing cron job in crontab file, need check if can run anywhere using terminal . opened ubuntu terminal @ /home/ location, , executed in terminal: sudo php /var/www/html/tests/test/index.php i got following out...
Read more

php - How can i create a user dashboard -

today have questions you, want create user dashboard site, include (obviously), users data, example -email -username -and others stuff how can information, , print them in html page? if can, how can these information via php sessions? shuld use session? example, if user login, , start new session ( session_start() ), how can data print in dashboard? should use php "project"? in advice, have day , thank time!
Read more

javascript - How to detect toggling of the fullscreen-toolbar in jQuery Mobile? -

i have jquery mobile page fixed full-screen toolbar, data-tap-toggle enabled. straight under toolbar have positioned banner should slide upwards when toolbar hiding , slide downward when toolbar showing. jquery mobile toggles toolbar applying , removing ui-fixed-hidden class - sadly, can't find in documentation of toolbar widget toggle , hide or show event that. how can detect when toolbar toggled, reposition banner? .banner { position: fixed; background-color: darkseagreen; top: 46px; min-height: 48px; width: 100%; text-align: center; line-height: 48px; } <!doctype html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> <link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css"> <script src="https://code.jquery.com/jquery-1....
Read more