In my TracPM module, I want to give schedulers free reign over ticket
data. I used to do:
def computeSchedule(self, options, tickets):
# Convert list to dictionary, making copies so schedule can
# mess with the tickets.
ticketsByID = {}
for t in tickets:
ticketsByID[t['id']] = t
# Schedule the tickets
self.scheduler.scheduleTasks(options, ticketsByID)
but changes made by the scheduler were carried back to the caller. I
started with:
def computeSchedule(self, options, tickets):
# Convert list to dictionary, making copies so schedule can
# mess with the tickets.
ticketsByID = {}
for t in tickets:
ticketsByID[t['id']] = copy.copy(t)
# Schedule the tickets
self.scheduler.scheduleTasks(options, ticketsByID)
# Copy back the schedule results
for t in tickets:
for field in [ 'calc_start', 'calc_finish']:
t[field] = ticketsByID[t['id']][field]
But the ticket attritbutes weren't copied, only the references to them.
I tried but deepcopy() but that gives:
File "build/bdist.linux-x86_64/egg/tracjsgantt/tracjsgantt.py", line
558, in _add_tasks
self.pm.computeSchedule(options, self.tickets)
File "build/bdist.linux-x86_64/egg/tracjsgantt/tracpm.py", line 566,
in computeSchedule
ticketsByID[t['id']] = copy.deepcopy(t)
File "/usr/lib/python2.6/copy.py", line 162, in deepcopy
y = copier(x, memo)
File "/usr/lib/python2.6/copy.py", line 255, in _deepcopy_dict
y[deepcopy(key, memo)] = deepcopy(value, memo)
File "/usr/lib/python2.6/copy.py", line 189, in deepcopy
y = _reconstruct(x, rv, 1, memo)
File "/usr/lib/python2.6/copy.py", line 322, in _reconstruct
args = deepcopy(args, memo)
File "/usr/lib/python2.6/copy.py", line 162, in deepcopy
y = copier(x, memo)
File "/usr/lib/python2.6/copy.py", line 235, in _deepcopy_tuple
y.append(deepcopy(a, memo))
File "/usr/lib/python2.6/copy.py", line 189, in deepcopy
y = _reconstruct(x, rv, 1, memo)
File "/usr/lib/python2.6/copy.py", line 323, in _reconstruct
y = callable(*args)
TypeError: __init__() takes exactly 3 arguments (1 given)
Is this a known restriction of some Trac classes? A bug? My misuse of
deepcopy()?
This is in Trac 0.11.6.
Any insight appreciated.
Chris
--
Christopher Nelson, Software Engineering Manager
SIXNET - Solutions for Your Industrial Networking Challenges
331 Ushers Road, Ballston Lake, NY 12019
Tel: +1.518.877.5173, Fax: +1.518.877.8346 www.sixnet.com
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