- ANN tags:
- clojure
- project
- python published: true comments: true
Inspired by meh's Ruby-Clj module, I created the python equivalent "pyclj" last weekend. Pyclj is a clojure literal reader/writer for python. It enables data exchange between python and clojure, in a clojure-native way. It's Valentines Day today, I'd like to release it as the gift of python to clojure :)
The API is very simple. It's all like python's data modules (json, pickle)
[cc lang="python"]
import clj
clj.loads("[1 2 3]")
clj.dumps({"a":1, "b":2})
[/cc]
Clojure types are mapping to python data structures :
| Clojure | Python |
|---|---|
| list | list |
| vector | list |
| set | set |
| map | dict |
| nil | None |
| string | string |
| int | int |
| float | float |
| boolean | boolean |
| char | string |
| keyword | string |
But how we win clojure's heart from ruby?
We are faster.
Considering clojure literal below:
[cc lang="clojure"]
[1 2 3 true false nil {:a 21.3 :b 43.2} "Hello"]
[/cc]
Comparing ruby-clj(0.0.4.5, ruby 1.9.3p0) and pyclj(0.1.3 python 2.7.2):
[cc lang="ruby"]
require 'clj'
s = "[1 2 3 true false nil {:a 21.3 :b 43.2} \"Hello\"]"
t1 = Time.now()
for i in 0...10000
Clojure.parse(s)
end
puts Time.now()-t1
[/cc]
[cc lang="python"]
import clj
import time
s = "[1 2 3 true false nil {:a 21.3 :b 43.2} \"Hello\"]"
t1 = time.time()
for i in range(10000):
clj.loads(s)
print time.time()-t1
[/cc]
The result:
ruby: 13.451157809
python: 0.712423086166
Edit 20120216 13:30
ruby-clj 0.0.5.3 has resolved the performance issue :)
The new result ruby-clj/0.0.5.4 Vs pyclj0.1.4 (on my laptop):
ruby-clj: 2.044872364
pyclj: 1.19659209251
The project is hosted on github. Feel free to join the development and enhance it.