tkinter.Canvas.coords should return a list, not a map

[abalkin]

BPO	10168
Nosy	@abalkin
Superseder	bpo-6878: changed return type from tkinter.Canvas.coords
Files	canvas-coords.diff

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2010-10-21.17:30:58.739>
created_at = <Date 2010-10-21.16:44:27.737>
labels = ['type-bug', 'expert-tkinter']
title = 'tkinter.Canvas.coords should return a list, not a map'
updated_at = <Date 2010-10-21.17:30:58.738>
user = 'https://github.com/abalkin'

bugs.python.org fields:

activity = <Date 2010-10-21.17:30:58.738>
actor = 'eric.araujo'
assignee = 'none'
closed = True
closed_date = <Date 2010-10-21.17:30:58.739>
closer = 'eric.araujo'
components = ['Tkinter']
creation = <Date 2010-10-21.16:44:27.737>
creator = 'belopolsky'
dependencies = []
files = ['19324']
hgrepos = []
issue_num = 10168
keywords = ['patch']
message_count = 1.0
messages = ['119316']
nosy_count = 1.0
nosy_names = ['belopolsky']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = 'resolved'
status = 'closed'
superseder = '6878'
type = 'behavior'
url = 'https://bugs.python.org/issue10168'
versions = ['Python 3.1', 'Python 3.2']

[abalkin]

Apparently a 2.x to 3.x migration artifact. Canvas.coords() is documented as returning a list:

    def coords(self, *args):
        """Return a list of coordinates for the item given in ARGS."""

but in 3.x it returns a map object.

Attached patch fixes that.