Features

Testing

• A fixture for testing WSGI applications conveniently and in-process, in paste.fixture.TestApp
• A fixture for testing command-line applications, also in paste.fixture.TestFileEnvironment
• Check components for WSGI-compliance in paste.lint
• Check filesystem changes, with paste.debug.fsdiff

Server

• A threaded HTTP server in paste.httpserver
• A tool for seeing and killing errant threads in the HTTP server, in paste.debug.watchthreads

Dispatching

• Chain and cascade WSGI applications (returning the first non-error response) in paste.cascade
• Dispatch to several WSGI applications based on URL prefixes, in paste.urlmap
• Allow applications to make subrequests and forward requests internally, in paste.recursive
• Redirect error pages (e.g., 404 Not Found) to custom error pages, in paste.errordocument.

Web Application

• Easily deal with incoming requests and sending a response in paste.wsgiwrappers
• Work directly with the WSGI environment in paste.request
• Run CGI programs as WSGI applications in paste.cgiapp
• Traverse files and load WSGI applications from .py files (or static files), in paste.urlparser
• Serve static directories of files, also in paste.urlparser; also serve using the Setuptools pkg_resources resource API.
• Proxy to other servers, treating external HTTP servers as WSGI applications, in paste.proxy.
• Serve files (with support for If-Modified-Since, etc) in paste.fileapp

Tools

• Catch HTTP-related exceptions (e.g., HTTPNotFound) and turn them into proper responses in paste.httpexceptions
• Manage HTTP header fields with paste.httpheaders
• Handle authentication/identification of requests in paste.auth
• Create sessions in paste.session and paste.flup_session
• Gzip responses in paste.gzipper
• A wide variety of routines for manipulating WSGI requests and producing responses, in paste.request, paste.response and paste.wsgilib.
• Create Apache-style logs in paste.translogger
• Handy request and response wrappers in paste.wsgiwrappers
• Handling of request-local module globals sanely in paste.registry

Authentication

• Authentication using cookies in paste.auth.cookie and paste.auth.auth_tkt; login form in paste.auth.form
• Authentication using OpenID in paste.auth.open_id, using CAS in paste.auth.cas
• HTTP authentication in paste.auth.basic and paste.auth.digest
• Dispatch to different authentication methods based on User-Agent, in paste.auth.multi
• Grant roles based on IP addresses, in paste.auth.grantip

Debugging Filters

• Catch (optionally email) errors with extended tracebacks (using Zope/ZPT conventions) in paste.exceptions
• During debugging, show tracebacks with information about each stack frame, including an interactive prompt that runs in the individual stack frames, in paste.evalexception.
• Catch errors presenting a cgitb-based output, in paste.cgitb_catcher.
• Profile each request and append profiling information to the HTML, in paste.debug.profile
• Capture print output and present it in the browser for debugging, in paste.debug.prints
• Validate all HTML output from applications using the WDG Validator, appending any errors or warnings to the page, in paste.debug.wdg_validator

Other Tools

• A file monitor to allow restarting the server when files have been updated (for automatic restarting when editing code) in paste.reloader
• A class for generating and traversing URLs, and creating associated HTML code, in paste.url
• A small templating language (for internal use) in paste.util.template
• A class to help with loops in templates, in paste.util.looper
• Import modules and objects given a string, in paste.util.import_string
• Ordered dictionary that can have multiple values with the same key, in paste.util.multidict