https://wiki2.arcoslab.org/dokuwiki/ 2026-05-14T23:48:00+00:00 https://wiki2.arcoslab.org/dokuwiki/ https://wiki2.arcoslab.org/dokuwiki/lib/exe/fetch.php?media=favicon.ico text/html 2022-09-20T00:08:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki2.arcoslab.org/dokuwiki/doku.php?id=teaching:ie0117:proyectos:2013:i:waconsys:barcode_with_webcam&rev=1663632524&do=diff Decoding and scannig barcode with webcam Zbar installation First, you´ll need to install zbar packages and their python bindings. $ sudo apt-get install libzbar-dev zbar-tools python-zbar Now, you can run zbarcam directly from the terminal $ zbarcam /dev/video0 text/html 2022-09-20T00:08:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki2.arcoslab.org/dokuwiki/doku.php?id=teaching:ie0117:proyectos:2013:i:waconsys:python-mysql&rev=1663632524&do=diff Relating Python with MySQL MySQLdb is an thread-compatible interface to the popular MySQL database server that provides the Python database API, for install it: sudo apt-get install python-mysqldb Then it is just like using another package. So we can use a Python environment or a text file .py: text/html 2022-09-20T00:08:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki2.arcoslab.org/dokuwiki/doku.php?id=teaching:ie0117:proyectos:2013:i:waconsys:using_mysql&rev=1663632524&do=diff Creating and managing databases in MySQL First install the MySQL server. $ sudo apt-get install mysql-server Automatically it will request a root password. Now we can login mysqlserver, write in console: $ mysql -uroot -p And write your password. Now you can create and user, commands ends with semicolon: