Pete Emerson wrote:
On Mar 5, 6:10 pm, Andreas Waldenburger <use...@geekmail.invalid>
wrote:
On Fri, 5 Mar 2010 17:22:14 -0800 (PST) Pete Emerson
<pemer...@gmail.com> wrote:
[snip]
data['one'] = {}
data['one']['two'] = 'three'
print data
{'one': {'two': 'three'}}
And through some research, I discovered collections.defaultdict (new
in Python 2.5, FWIW):
import collections
data = collections.defaultdict(dict)
data['one']['two'] = 'three'
print data
defaultdict(<type 'dict'>, {'one': {'two': 'three'}})
[snip]
Your thoughts and comments are very much appreciated. I think my brain
already knows some of the answers, but my heart ... well, perl and I
go way back. Loving python so far, though.
Oh, by the way: That defaultdict route is a pretty solid solution. Not
sure what problem you're trying to solve -- depending on your usecase,
there might be a better approach.
If you're just asking hypothetically and you're trying to apply a
Perl idiom to Python, there probably *is* a better solution.
/W
--
INVALID? DE!
I found out about the need to declare the higher level as I was
reading in a JSON struct into a dict and then adding a new entry at a
lower level. Mostly just proof of concept stuff as I'm learning
python. I'm not sure that the use of defaultdict is really warranted
for me anywhere just yet. Mostly, I don't want to convert my perl to
python, that seems very counterproductive. Thank you very much for
your insight.
I was a little frightened of doing "import this" ("Hey, kid, run rm -
rf / and see what happens!"), but did, and the words are wise. :)
Pete
After reading the words of wisdom try "import this" a second time and
watch what happens, it's quite interesting if you're not expecting the
output.
Mark Lawrence.
--
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