473,652 Members | 3,132 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

MySQLdb reconnect

Does MySQLdb automatically reconnect if the connection to the database is
broken?

I'm asking this since I have a longrunning Python precess that is connected
to Mysql-4.1.11, and I execute "set names utf8" when I connect to it.

But after running a day the results from the python program were displayed
as if the "set names utf8" was not executed i.e. I got question marks where
utf-8 cyrillics should've appeared. After restarting the Python program
everything was ok, just as when I first started it.

The long running Python process is actually a scgi quixote web application.
--
damjan
Jul 19 '05 #1
2 5791
I don't beleive that it does. You can however call ping() on the
connection which should attempt an automatic reconnection.

See the docs for mysql_ping:

http://dev.mysql.com/doc/mysql/en/mysql-ping.html

I've never tested that, but I have a need for it also so let me know if
it works or not.

-Dan

Jul 19 '05 #2
> Does MySQLdb automatically reconnect if the connection to the database is
broken?
It seems so.
I'm asking this since I have a longrunning Python precess that is
connected to Mysql-4.1.11, and I execute "set names utf8" when I connect
to it.

But after running a day the results from the python program were displayed
as if the "set names utf8" was not executed i.e. I got question marks
where utf-8 cyrillics should've appeared. After restarting the Python
program everything was ok, just as when I first started it.


This is the sollution I've come to:

try:
# This will fail on MySQL < 4.1
db = MySQLdb.connect (godot.dbhost, godot.dbuser, godot.dbpass,
godot.dbname, use_unicode=1, init_command="s et names utf8")
except MySQLdb.Operati onalError:
db = MySQLdb.connect (godot.dbhost, godot.dbuser, godot.dbpass,
godot.dbname, use_unicode=1)
db.charset = 'utf8'
--
damjan
Jul 19 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

0
2096
by: Dave Harrison | last post by:
Hi all, got a problem combinging mx and MySQLdb, when I build and install both for my Python2.1 install on a Solaris 9 box I can import mx fine, but importing MySQLdb causing python to core dump. I am using egenenix 2.0.4 and MySQLdb 0.9.2. I have also replaced the -shared flag in the Makefile is /usr/local/lib/Python2.1/config with -G (a recommended solaris change to let the build of the modules work in the first place) -> notably I also...
1
2581
by: Peter Nikolaidis | last post by:
Greetings, I am attempting to get MySQLdb 0.9.2 installed on Mac OS 10.2 with a Fink distribution of Python 2.2.2. I have seen only a few posts on the subject, some of them relate to "conflicting header files," but I don't know what to do about conflicting header files, or where I would find them, and once I found them, which ones to remove. I have compiled MySQL 4.1 and installed into /usr/local/mysql, but since have moved to a Fink...
1
2998
by: Derek Fountain | last post by:
I was trying to use MySQLdb to connect to a database. All is OK, except I can't figure out how to get the details of an error. Suppose I try to connect to a non existant server, or with the wrong password - how do I get a meaningful error message which I can present to my user?
2
5045
by: Tim Williams | last post by:
I'm trying to write a simple python program to access a MySQL database. I'm having a problem with using MySQLdb to get the results of a SQL command in a cursor. Sometimes the cursor.execute works, sometimes not. From mysql: mysql> show databases; +-----------+ | Database |
2
2187
by: ws Wang | last post by:
MySQLdb is working fine at command line, however when I tried to use it with mod_python, it give me a "server not initialized" error. This is working fine: ----------------------- testmy.py ------------------------------- #!/usr/bin/python import MySQLdb db = MySQLdb.connect(host="localhost", user="root", passwd="mypass", db="my_db") cursor = db.cursor()
1
2732
by: Steve | last post by:
Darwin steve.local 8.3.0 Darwin Kernel Version 8.3.0: Mon Oct 3 20:04:04 PDT 2005; root:xnu-792.6.22.obj~2/RELEASE_PPC Power Macintosh powerpc MacOSX 10.4.3 mysql Ver 14.7 Distrib 4.1.14, for apple-darwin8.2.0 (powerpc) using readline 4.3 runing the software gives me steve:~/MySQL-python-1.2.0 steve$ python setup.py build
7
3528
by: Bernard Lebel | last post by:
Hello, I'm stumbled at a serious problem, and quite frankly getting desparate. This is a rather long-winded one so I'll try to get straight to the point. I have this Python program, that performs MySQL queries to a database. These queries are performed at regular intervals. Basically it is looking for fields that match certain criterias. Such fields are not present at all time. When the program finds such field, it then takes
1
702
by: Yi Xing | last post by:
Hi, I met the following error when I tried to install MySQLdb. I had no problem installing numarray, Numeric, Rpy, etc. Does anyone know what's the problem? Thanks! running install running build running build_py creating build
0
314
by: Steve Holden | last post by:
Vaibhav.bhawsar wrote: imported The point here is that MySQLdb is a package, not a module. Some packages have their top-level __init__.py import the package's sub-modules or sub-packages to make them immediately available within the package namespace (which is why, for example, you can access os.path.* when you have imported os) and others don't. MySQLdb clearly doesn't need to import the cursors module for its own
0
8279
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
8811
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
8703
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
8467
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
8589
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
0
5619
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
4291
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
2703
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
1591
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.