Gems not working

ruby-talk
1

I do not have rails, but I like to use Ruby Gems. I installed gem
hpricot and when I run my script with 'ruby', it has trouble finding the
Hpricot library. When I run the same code in IRB, it finds the gem. I
do have require 'rubygems' before require 'hpricot'. The code fails on
line 5, where I use the hpricot library for the first time ( which seems
strange )

require 'rubygems'
require 'pricot'
require 'open-uri'
# load the RedHanded home page
doc = Hpricot(open("http://redhanded.hobix.com/index.html"))
# change the CSS class on links
(doc/"span.entryPermalink").set("class", "newLinks")
# remove the sidebar
(doc/"#sidebar").remove
# print the altered HTML
puts doc

This situation occurs when I run the script from teh command line:

ruby hpricot.rb

The same code runs perfectly in IRB. It would seem that IRB knows more
about gems while the ruby interpretor does not. What can I do about
this? Thanks.

···

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Posted via http://www.ruby-forum.com/.

2

Vincent Predoehl wrote:

I do not have rails, but I like to use Ruby Gems. I installed gem
hpricot and when I run my script with 'ruby', it has trouble finding the
Hpricot library. When I run the same code in IRB, it finds the gem. I
do have require 'rubygems' before require 'hpricot'. The code fails on
line 5, where I use the hpricot library for the first time ( which seems
strange )

require 'rubygems'
require 'pricot'

-----------^ typo?

···

--
Alex

3

name the script different from the thing you are requiring... 'test-hpricot.rb' maybe.

···

On Jun 28, 2007, at 10:30 , Vincent Predoehl wrote:

require 'rubygems'
require 'pricot'
...

This situation occurs when I run the script from teh command line:

ruby hpricot.rb

4

It's b/c you call your file 'hpricot.rb', rename the file to something
else and it should work.

···

-----Original Message-----
From: list-bounce@example.com [mailto:list-bounce@example.com] On Behalf
Of Vincent Predoehl
Sent: Thursday, June 28, 2007 1:30 PM
To: ruby-talk ML
Subject: Gems not working

I do not have rails, but I like to use Ruby Gems. I installed gem
hpricot and when I run my script with 'ruby', it has trouble finding the
Hpricot library. When I run the same code in IRB, it finds the gem. I
do have require 'rubygems' before require 'hpricot'. The code fails on
line 5, where I use the hpricot library for the first time ( which seems
strange )

require 'rubygems'
require 'pricot'
require 'open-uri'
# load the RedHanded home page
doc = Hpricot(open("http://redhanded.hobix.com/index.html"))
# change the CSS class on links
(doc/"span.entryPermalink").set("class", "newLinks") # remove the
sidebar (doc/"#sidebar").remove # print the altered HTML puts doc

This situation occurs when I run the script from teh command line:

ruby hpricot.rb

The same code runs perfectly in IRB. It would seem that IRB knows more
about gems while the ruby interpretor does not. What can I do about
this? Thanks.

--
Posted via http://www.ruby-forum.com/.

5

Alex Young wrote:

Vincent Predoehl wrote:

I do not have rails, but I like to use Ruby Gems. I installed gem
hpricot and when I run my script with 'ruby', it has trouble finding the
Hpricot library. When I run the same code in IRB, it finds the gem. I
do have require 'rubygems' before require 'hpricot'. The code fails on
line 5, where I use the hpricot library for the first time ( which seems
strange )

require 'rubygems'
require 'pricot'

-----------^ typo?

I saw the typo and fixed it. I regret the typo because it only added to
the confusion, but I still have the same problem.

···

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Posted via http://www.ruby-forum.com/\.

6

Doan, Alex wrote:

It's b/c you call your file 'hpricot.rb', rename the file to something
else and it should work.

The platform is MacOS X Tiger. I installed hpricot using balloons from
here and it works:
http://balloon.hobix.com/hpricot

The file name was probably the problem though. Either way I got it
working and I renamed the file.

···

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7

Vincent Predoehl wrote:

Alex Young wrote:

Vincent Predoehl wrote:

I do not have rails, but I like to use Ruby Gems. I installed gem
hpricot and when I run my script with 'ruby', it has trouble finding the
Hpricot library. When I run the same code in IRB, it finds the gem. I
do have require 'rubygems' before require 'hpricot'. The code fails on
line 5, where I use the hpricot library for the first time ( which seems
strange )

require 'rubygems'
require 'pricot'

-----------^ typo?

I saw the typo and fixed it. I regret the typo because it only added to the confusion, but I still have the same problem.

What platform is this on? What's the exact error?

···

--
Alex