[three]Bean

New tw2.devtools WidgetBrowser features

May 02, 2011 | categories: python, toscawidgets View Comments

I pumped out two new tw2.devtools WidgetBrowser features this afternoon -- you can see them live at http://tw2-demos.threebean.org.

A view source link that pops open a jquery-ui dialog with the nicely formatted sourcecode of the demo widget rendered by the widget browser (hg commit).
Metadata pulled from pypi including the latest release available and the total number of downloads across all releases (hg commit).

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The 'view source' link stuff is pretty cool. I got the idea and the details both from the moksha demo dashboard using inspect and pygments. Here's the relevant piece of code:

import warnings
import inspect
import pygments
import pygments.lexers
import pygments.formatters

def prepare_source(s):
    try:
        source = inspect.getsource(s)
    except IOError as e:
        warnings.warn(repr(s) + " : " + str(e))
        return ""

    html_args = {'full': False}
    code = pygments.highlight(
        source,
        pygments.lexers.PythonLexer(),
        pygments.formatters.HtmlFormatter(**html_args)
    )

    return code

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The metadata part was trickier but to get the same information yourself, run:

import xmlrpclib

module = 'tw2.core'

pypi = xmlrpclib.ServerProxy('http://pypi.python.org/pypi')

total = sum([
    sum([
        d['downloads'] for d in pypi.release_urls(module, version)
    ])
    for version in pypi.package_releases(module, True)
])

print module, total

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