ZeroDivisionError: float division by zero

[swapnil.rastogi]

How to Reproduce

While doing a GET operation on /backlog/Sprint Backlog, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'bscope': u'Sprint 4', 'name': u'Sprint Backlog', 'scope': None}

User agent: #USER_AGENT#

System Information

Trac	0.12.3
Agilo	0.9.8
Babel	0.9.6 (translations unavailable)
Docutils	0.8.1
Genshi	0.6
GIT	1.7.9.5
mod_wsgi	3.3 (WSGIProcessGroup WSGIApplicationGroup %{GLOBAL})
Pygments	1.4
pysqlite	2.6.0
Python	2.7.3 (default, Feb 27 2014, 20:09:21) [GCC 4.6.3]
pytz	2011k
setuptools	0.6c11
SQLite	3.7.9
jQuery	#JQUERY#

Enabled Plugins

agilo	0.9.8
TracGit	0.12.0.5dev

Python Traceback

Traceback (most recent call last):
  File "build/bdist.linux-x86_64/egg/trac/web/main.py", line 522, in _dispatch_request
    dispatcher.dispatch(req)
  File "build/bdist.linux-x86_64/egg/trac/web/main.py", line 243, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/local/lib/python2.7/dist-packages/agilo-0.9.8-py2.7.egg/agilo/api/view.py", line 155, in process_request
    return self._call_filters_and_handler(req, handler)
  File "/usr/local/lib/python2.7/dist-packages/agilo-0.9.8-py2.7.egg/agilo/api/view.py", line 143, in _call_filters_and_handler
    data = handler(req) or {}
  File "/usr/local/lib/python2.7/dist-packages/agilo-0.9.8-py2.7.egg/agilo/scrum/backlog/web_ui.py", line 325, in do_get
    chart = self._get_and_prepare_burndown_chart_if_neccessary(req, backlog)
  File "/usr/local/lib/python2.7/dist-packages/agilo-0.9.8-py2.7.egg/agilo/scrum/backlog/web_ui.py", line 304, in _get_and_prepare_burndown_chart_if_neccessary
    widget.prepare_rendering(req)
  File "/usr/local/lib/python2.7/dist-packages/agilo-0.9.8-py2.7.egg/agilo/scrum/burndown/charts.py", line 196, in prepare_rendering
    self._populate_with_sprint_and_viewer_timezone(self.data['sprint_name'], req.tz)
  File "/usr/local/lib/python2.7/dist-packages/agilo-0.9.8-py2.7.egg/agilo/scrum/burndown/charts.py", line 223, in _populate_with_sprint_and_viewer_timezone
    utc_ideal_data = self._calculate_ideal_burndown(utc_capacity_data, first_remaining_time, sprint)
  File "/usr/local/lib/python2.7/dist-packages/agilo-0.9.8-py2.7.egg/agilo/scrum/burndown/charts.py", line 352, in _calculate_ideal_burndown
    return calculate_ideal_burndown(utc_capacity_data, first_remaining_time, sprint)
  File "/usr/local/lib/python2.7/dist-packages/agilo-0.9.8-py2.7.egg/agilo/scrum/burndown/charts.py", line 138, in calculate_ideal_burndown
    ideal_burndown_proportion = 1 + (first_remaining_time.remaining_time - first_capacity) / first_capacity
ZeroDivisionError: float division by zero

[Jun Omae]

PluginIssue (AgiloForScrum).

[stefano.rago@…]

@jomae: thanks for the cc
@reporter: please upgrade to the latest version of Agilo for Trac