New in version 2.2.
The cgitb module provides a special exception handler for Python scripts. (Its name is a bit misleading. It was originally designed to display extensive traceback information in HTML for CGI scripts. It was later generalized to also display this information in plain text.) After this module is activated, if an uncaught exception occurs, a detailed, formatted report will be displayed. The report includes a traceback showing excerpts of the source code for each level, as well as the values of the arguments and local variables to currently running functions, to help you debug the problem. Optionally, you can save this information to a file instead of sending it to the browser.
To enable this feature, simply add one line to the top of your CGI script:
import cgitb; cgitb.enable()
The options to the enable() function control whether the report is displayed in the browser and whether the report is logged to a file for later analysis.
|[display[, logdir[, context[, format]]]])|
The optional argument display defaults to
1 and can be set
0 to suppress sending the traceback to the browser.
If the argument logdir is present, the traceback reports are
written to files. The value of logdir should be a directory
where these files will be placed.
The optional argument context is the number of lines of
context to display around the current line of source code in the
traceback; this defaults to
If the optional argument format is
"html", the output is
formatted as HTML. Any other value forces plain text output. The default
sys.exc_info(). If the info argument is not supplied, the current exception is obtained from