puby Ruby 的 Python 接口

puby 是 Ruby 解释器的 Python 接口。

示例代码

解析 HTML

# python                                   # # ruby
from puby import Object as rb              # 
rb.require("nokogiri")                     # require "nokogiri"
rb.require("open-uri")                     # require "open-uri"

url = "HTTP://www.Google.com/search?q=foo" # url = "http://www.Google.com/search?q=foo"
doc = rb.Nokogiri.HTML.parse(rb.open(url)) # doc = Nokogiri::HTML.parse(open(url))

for link in doc.CSS("h3.r a"):             # doc.css("h3.r a").each do |link|
    print link.content()                   #     puts link.content
                                           # end

执行 JavaScript：

from puby import Object as rb              # 
rb.require('V8')                           # require "v8"

ctx = rb.V8.Context.new()                  # ctx = V8::Context.new
print ctx.eval("'Xzibit ' + 7 * 6")        # puts ctx.eval "'Xzibit ' + 7 * 6"

运行 Web 服务器：

from puby import Object as rb              # 
rb.require("rack")                         # require "rack"
                                           # 
def application(env):                      # def application(env)
    return [200,                           #   [200,
            {"Content-Type": "text/html"}, #    {"Content-Type" => "text/html"},
            ["Hello Puby!"]]               #    ["Hello Puby!"]]
                                           # end
rb.Rack.Handler.Thin.run(application)      # Rack::Handler::Thin.run method(:application)

回调示例：

from puby import Object as rb, RbCallback

rb.eval("""
class TestObj
    def save_callback cb
        @cb = cb
    end
    def call_callback x
        @cb.call(x)
    end
end
""")
obj = rb.TestObj.new()

def callback(x):
    return x+1

callback_rb = RbCallback(callback)
obj.save_callback(callback_rb)
print obj.call_callback(5)