loading dictionary from a file

[Amit Gupta]

Need a python trick, if it exists:

I have a file that stores key, value in following format
--
"v1" : "k1",
"v2" : "k2"
--

Is there a way to directly load this file as dictionary in python. I
could do (foreach line in file, split by ":" and then do dictionary
insert). Wondering, if some python built-in function can just read a
valid dictionary-file and load it?

Thanks

[Miki]

Hello Amit,

Need a python trick, if it exists:

I have a file that stores key, value in following format
--
"v1" : "k1",
"v2" : "k2"
--

Is there a way to directly load this file as dictionary in python. I
could do (foreach line in file, split by ":" and then do dictionary
insert). Wondering, if some python built-in function can just read a
valid dictionary-file and load it?

def load_as_dict(filename):
return eval("{" + open(filename).read() + "}")

Note that this is a very big security hole.

HTH,
--
Miki <mi*********@gmail.com>
http://pythonwise.blogspot.com

[Adonis Vargas]

Amit Gupta wrote:

Need a python trick, if it exists:

I have a file that stores key, value in following format
--
"v1" : "k1",
"v2" : "k2"
--

Is there a way to directly load this file as dictionary in python. I
could do (foreach line in file, split by ":" and then do dictionary
insert). Wondering, if some python built-in function can just read a
valid dictionary-file and load it?

Thanks

If you could change the input data you can pickle the dict object then
save and reopen as needed.

import cPickle

data = {'k1': 'v1', 'k2': 'v2'}
output = open('output.dat', 'wb')
cPickle.dump(data, output)
output.close()
data1 = cPickle.load(open('output.dat', 'rb'))
print type(data1)
print data1

Hope this helps.

Adonis Vargas

[Fuzzyman]

Amit Gupta wrote:

Need a python trick, if it exists:

I have a file that stores key, value in following format
--
"v1" : "k1",
"v2" : "k2"
--

Is there a way to directly load this file as dictionary in python. I
could do (foreach line in file, split by ":" and then do dictionary
insert). Wondering, if some python built-in function can just read a
valid dictionary-file and load it?

If you change the format slightly you could use ConfgiObj <
http://www.voidspace.org.uk/python/configobj.html >.

key = value
"key2" = "value2"

Fuzzyman
http://www.voidspace.org.uk/python/weblog/index.shtml

Thanks