# Install hpricot on Leopard

**URL:** <https://www.ruby-forum.com/t/install-hpricot-on-leopard/118897>\
**Category:** Ruby\
**Created:** [November 1, 2007, 5:54am UTC](https://www.ruby-forum.com/t/install-hpricot-on-leopard/118897 "2007-11-01T05:54:22Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![banry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/898d66/32.png) [@banry](https://www.ruby-forum.com/u/banry)\
**Post date:** [November 1, 2007, 5:54am UTC](https://www.ruby-forum.com/t/install-hpricot-on-leopard/118897/1 "2007-11-01T05:54:22Z")

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Oh, this was working SO nicely until I upgraded the OS…

I tried running my little site spider to keep my archive up-to-date  
and I got an error about mechanize not being available. No problem,  
I’ll just fire up gem and install it. Not so fast…

It requires hpricot and  
sudo gem install hpricot  
gave me errors that led me to the realization that new OS meant new  
compilers and the installation of XCode 3.0. (I’m quite new to the CLI  
stuff.)

Once I did that, hpricot and mechanize both installed okay. But I get:

/usr/local/lib/ruby/gems/1.8/gems/mechanize-0.6.10/lib/mechanize/  
inspect.rb:44: undefined method `pretty_inspect' for class`WWW::Mechanize::Page’ (NameError)  
from /usr/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:  
27:in `require' from /usr/local/lib/ruby/gems/1.8/gems/mechanize-0.6.10/lib/ mechanize.rb:42 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 32:in`require’  
from scrape.rb:13

Clues?

Thanks.  
–Colin

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<div class="post-metadata">

**Author:** ![banry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/898d66/32.png) [@banry](https://www.ruby-forum.com/u/banry)\
**Post date:** [November 1, 2007, 6:53am UTC](https://www.ruby-forum.com/t/install-hpricot-on-leopard/118897/2 "2007-11-01T06:53:57Z")

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On Oct 31, 2007, at 11:50 PM, Colin S. wrote:

> stuff.)  
> from /usr/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:  
> 32:in `require’  
> from scrape.rb:13
> 
> Clues?
> 
> Thanks.  
> –Colin

Make sure you use  
sudo install gem\_name\_here --include-dependencies

Also make sure your spider has the right shebang at the beginning. #!  
usr/bin/or/whatever  
Using the default Ruby on Leopard is definitely feasible now, but the  
path might be different from your old one.

Now make sure you’re requiring all the right stuff.  
require ‘rubygems’  
require ‘gem\_name\_here’

---

<div class="post-metadata">

**Author:** ![banry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/898d66/32.png) [@banry](https://www.ruby-forum.com/u/banry)\
**Post date:** [November 2, 2007, 4:21am UTC](https://www.ruby-forum.com/t/install-hpricot-on-leopard/118897/3 "2007-11-02T04:21:06Z")

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The first bit of scrape.rb

#! /usr/local/bin/ruby

# scrape.rb

# June 13 2007. Started writing my first Ruby program.

# June 16 2007. It is doing most of everything I wanted it to.

# Colin S… removed\_email\_address@domain.invalid

require ‘rubygems’ # the module for Ruby that keeps modules up to  
date  
require ‘cgi’  
require ‘open-uri’ # http module used by mechanize  
require ‘hpricot’  
require ‘mechanize’ # a nicely wrapped browser client

Agent = WWW::Mechanize.new # there’s one browser agent we’ll use  
globally, so it stores the cookies

MacBookPro:spider colin$ which ruby  
/usr/local/bin/ruby  
MacBookPro:spider colin$ ruby -v  
ruby 1.8.4 (2005-12-24) [i686-darwin8.10.1]

Same error still:  
MacBookPro:spider colin$ ruby scrape.rb  
/usr/local/lib/ruby/gems/1.8/gems/mechanize-0.6.10/lib/mechanize/  
inspect.rb:44: undefined method `pretty_inspect' for class`WWW::Mechanize::Page’ (NameError)  
from /usr/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:  
27:in `require' from /usr/local/lib/ruby/gems/1.8/gems/mechanize-0.6.10/lib/ mechanize.rb:42 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 32:in`require’  
from scrape.rb:14

Does anyone have mechanize working on Leopard?

–Colin

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<div class="post-metadata">

**Author:** ![banry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/898d66/32.png) [@banry](https://www.ruby-forum.com/u/banry)\
**Post date:** [November 2, 2007, 9:09am UTC](https://www.ruby-forum.com/t/install-hpricot-on-leopard/118897/4 "2007-11-02T09:09:43Z")

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Hi,

> from /usr/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:  
> 27:in `require' from /usr/local/lib/ruby/gems/1.8/gems/mechanize-0.6.10/lib/ mechanize.rb:42 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 32:in `require’  
> from scrape.rb:14

I am not sure this is leopard-related. I have the same bug submitted to  
the scRUBYt! lighthouse:

[http://scrubyt.lighthouseapp.com/projects/2912/tickets/17-undefined-method-pretty\_inspect-for-class-www-mechanize-page](http://scrubyt.lighthouseapp.com/projects/2912/tickets/17-undefined-method-pretty_inspect-for-class-www-mechanize-page)

and AFAIK this happens both on win32 and linux (ubuntu, at least). So I  
believe this is a mechanize bug, introduced in 0.6.10. I have tried to  
contact Aaron P. but got no response. I guess we should file a  
bug.

Cheers,  
Peter

* * *

[http://www.rubyrailways.com](http://www.rubyrailways.com)  
[http://scrubyt.org](http://scrubyt.org)

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<div class="post-metadata">

**Author:** ![banry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/898d66/32.png) [@banry](https://www.ruby-forum.com/u/banry)\
**Post date:** [November 15, 2007, 10:35am UTC](https://www.ruby-forum.com/t/install-hpricot-on-leopard/118897/5 "2007-11-15T10:35:59Z")

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Happens for me as well, on ubuntu 6.10, after a clean install of  
mechanize with dependencies.  
Any ideas?

---

<div class="post-metadata">

**Author:** ![banry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/898d66/32.png) [@banry](https://www.ruby-forum.com/u/banry)\
**Post date:** [November 15, 2007, 11:01am UTC](https://www.ruby-forum.com/t/install-hpricot-on-leopard/118897/6 "2007-11-15T11:01:16Z")

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Ok, this fixed it for me:  
[https://rubyforge.org/tracker/index.php?func=detail&aid=15049&group\_id=1453&atid=5709](https://rubyforge.org/tracker/index.php?func=detail&aid=15049&group_id=1453&atid=5709)

---

<div class="post-metadata">

**Author:** ![banry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/898d66/32.png) [@banry](https://www.ruby-forum.com/u/banry)\
**Post date:** [November 2, 2007, 4:26am UTC](https://www.ruby-forum.com/t/install-hpricot-on-leopard/118897/7 "2007-11-02T04:26:57Z")

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Am I the only one that sees that hpricot is installed by default on  
leopard?

-Ron