Ironruby core - Jun 2009 - Accessing open-uri from the same directory

Hi,

I am have placed open-uri in the same directory as my application and I
am trying to include open-uri in my application using the require
attribute.

require File.dirname(__FILE__) + ''/open-uri''

It throws the following error:



C:\ironruby\ironruby\Merlin\Main\Languages\Ruby\Libs>ir test.rb
:0:in `require'': no such file to load -- uri (LoadError)
        from ./open-uri.rb:1
        from test.rb:4
        from :0:in `require''

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

Hi Mohammad,

It happens because open-uri tries to load the uri library and it fails 
to find it.

I couldn''t reproduce this behavior on my end...
The uri library should be located at 
<path_to_merlin>\External.LCA_RESTRICTED\Languages\Ruby\redist-libs\ruby\1.8\uri.rb
Is there a chance you''re changing the $LOAD_PATH array?

By the way, why would you want to copy the open-uri lib to your 
application directory? The standard library folder is a part of the file 
lookup paths, so no matter where your application is installed to, the 
standard libraries (like open-uri) will still be available.

Shay.
----------------------------
Shay Friedman
http://www.ironshay.com
Follow me: http://twitter.com/ironshay
-- 
Posted via http://www.ruby-forum.com/.

it can be useful when  you want to deploy your application to systems where
you don''t know if ironruby is installed etc. I''m doing the
same for an
ironrubymvc application.
I still have to find a nicer solution to that maybe by reusing the ironruby
configuration to make those paths configurable.
---
Met vriendelijke groeten - Best regards - Salutations
Ivan Porto Carrero
Blog: http://flanders.co.nz
Twitter: http://twitter.com/casualjim
Author of IronRuby in Action (http://manning.com/carrero)



On Wed, Jun 17, 2009 at 6:11 AM, Shay Friedman <lists at ruby-forum.com>
wrote:
> Hi Mohammad,
>
> It happens because open-uri tries to load the uri library and it fails
> to find it.
>
> I couldn''t reproduce this behavior on my end...
> The uri library should be located at
>
>
<path_to_merlin>\External.LCA_RESTRICTED\Languages\Ruby\redist-libs\ruby\1.8\uri.rb
> Is there a chance you''re changing the $LOAD_PATH array?
>
> By the way, why would you want to copy the open-uri lib to your
> application directory? The standard library folder is a part of the file
> lookup paths, so no matter where your application is installed to, the
> standard libraries (like open-uri) will still be available.
>
> Shay.
> ----------------------------
> Shay Friedman
> http://www.ironshay.com
> Follow me: http://twitter.com/ironshay
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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How can IronRuby work if it''s not installed?
-- 
Posted via http://www.ruby-forum.com/.

it are just DLL''s you could host them inside your own
application.ir.exe
also calls out to those libraries to do its work
---
Met vriendelijke groeten - Best regards - Salutations
Ivan Porto Carrero
Blog: http://flanders.co.nz
Twitter: http://twitter.com/casualjim
Author of IronRuby in Action (http://manning.com/carrero)



On Wed, Jun 17, 2009 at 10:06 AM, Shay Friedman <lists at
ruby-forum.com>wrote:
> How can IronRuby work if it''s not installed?
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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I am using the following code to scrape the webpage.

button = Button.new
button.Text = ''Scrape URL''
button.Location = System::Drawing::Point.new(108,61)
button.click  do |sender,args|

  page = File.open("http://www.azamsharp.com/Default.aspx")
  System::Windows::Forms::MessageBox.Show(page.read)

end

I get the following error message:

Invalid argument - URI formats are not supported

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

if you have openuri required
just remove the File that should work
or

uri = URI.parse("http://somewhere.com/default.aspx")
uri.open do |f|
  #some logic here
end

or

you could just use

open("http://somewhere.com/default.aspx") do |f|
   # some logic here
end

taken from
http://www.ruby-doc.org/stdlib/libdoc/open-uri/rdoc/classes/OpenURI.html
---
Met vriendelijke groeten - Best regards - Salutations
Ivan Porto Carrero
Blog: http://flanders.co.nz
Twitter: http://twitter.com/casualjim
Author of IronRuby in Action (http://manning.com/carrero)



On Wed, Jun 17, 2009 at 4:34 PM, Mohammad Azam <lists at ruby-forum.com>
wrote:
>
> I am using the following code to scrape the webpage.
>
> button = Button.new
> button.Text = ''Scrape URL''
> button.Location = System::Drawing::Point.new(108,61)
> button.click  do |sender,args|
>
>  page = File.open("http://www.azamsharp.com/Default.aspx")
>  System::Windows::Forms::MessageBox.Show(page.read)
>
> end
>
> I get the following error message:
>
> Invalid argument - URI formats are not supported
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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You''re trying to use the File class to open URIs which is not
supported.
Try open instead of File.open (and add require "open-uri" as well).

Shay.
----------------------------
Shay Friedman
http://www.ironshay.com
Follow me: http://twitter.com/ironshay
-- 
Posted via http://www.ruby-forum.com/.

If I put:

require ''open-uri''

then it throws the error that error locating the file
''open-uri''.

I used the following code:

def scrape_page()

uri = URI.parse("http://somewhere.com/default.aspx")

end

And now it throws the exception:

Unintitialzied constant Object: URI



Ivan Porto carrero wrote:
> if you have openuri required
> just remove the File that should work
> or
> 
> uri = URI.parse("http://somewhere.com/default.aspx")
> uri.open do |f|
>   #some logic here
> end
> 
> or
> 
> you could just use
> 
> open("http://somewhere.com/default.aspx") do |f|
>    # some logic here
> end
> 
> taken from
> http://www.ruby-doc.org/stdlib/libdoc/open-uri/rdoc/classes/OpenURI.html
> ---
> Met vriendelijke groeten - Best regards - Salutations
> Ivan Porto Carrero
> Blog: http://flanders.co.nz
> Twitter: http://twitter.com/casualjim
> Author of IronRuby in Action (http://manning.com/carrero)
-- 
Posted via http://www.ruby-forum.com/.

I tried to add a require ''open-uri'' but for some reason it is
not able
to locate the open-uri files.

I have placed the open-uri in the libs folder and I said:

require ''libs/open-uri'' but it is not able to locate the file.
-- 
Posted via http://www.ruby-forum.com/.

what version of ironruby are you using?it looks like your search paths are
messed up.

for example does require File.dirname(__FILE__) +
''/libs/open-uri'' work?

---
Met vriendelijke groeten - Best regards - Salutations
Ivan Porto Carrero
Blog: http://flanders.co.nz
Twitter: http://twitter.com/casualjim
Author of IronRuby in Action (http://manning.com/carrero)



On Wed, Jun 17, 2009 at 6:55 PM, Mohammad Azam <lists at ruby-forum.com>
wrote:
>
> If I put:
>
> require ''open-uri''
>
> then it throws the error that error locating the file
''open-uri''.
>
> I used the following code:
>
> def scrape_page()
>
> uri = URI.parse("http://somewhere.com/default.aspx")
>
> end
>
> And now it throws the exception:
>
> Unintitialzied constant Object: URI
>
>
>
> Ivan Porto carrero wrote:
> > if you have openuri required
> > just remove the File that should work
> > or
> >
> > uri = URI.parse("http://somewhere.com/default.aspx")
> > uri.open do |f|
> >   #some logic here
> > end
> >
> > or
> >
> > you could just use
> >
> > open("http://somewhere.com/default.aspx") do |f|
> >    # some logic here
> > end
> >
> > taken from
> >
http://www.ruby-doc.org/stdlib/libdoc/open-uri/rdoc/classes/OpenURI.html
> > ---
> > Met vriendelijke groeten - Best regards - Salutations
> > Ivan Porto Carrero
> > Blog: http://flanders.co.nz
> > Twitter: http://twitter.com/casualjim
> > Author of IronRuby in Action (http://manning.com/carrero)
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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Can you check if the open-uri.rb file exists in the folder:
<path_to_merlin>\External.LCA_RESTRICTED\Languages\Ruby\redist-libs\ruby\1.8\
-- 
Posted via http://www.ruby-forum.com/.

I have placed the open-uri file in the libs folder within the project. 
But for some reason it blows up and says unable to locate open-uri file.

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

I tried with the path and got the following error:

require File.dirname(__FILE__) + ''/libs/open-uri''

C:\IronRubyProjects\IronRubyTaskListApplication>ir main_form.rb
:0:in `require'': no such file to load -- uri (LoadError)
        from ./libs/open-uri.rb:1
        from main_form.rb:4
        from :0:in `require''


Ivan Porto carrero wrote:
> what version of ironruby are you using?it looks like your search paths 
> are
> messed up.
> 
> for example does require File.dirname(__FILE__) +
''/libs/open-uri'' work?
> 
> ---
> Met vriendelijke groeten - Best regards - Salutations
> Ivan Porto Carrero
> Blog: http://flanders.co.nz
> Twitter: http://twitter.com/casualjim
> Author of IronRuby in Action (http://manning.com/carrero)
-- 
Posted via http://www.ruby-forum.com/.

Here is the version:


C:\IronRubyProjects\IronRubyTaskListApplication>ir -v
IronRuby 0.5.0.0 on .NET 2.0.0.0

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

ok you also need the uri file
open-uri has a dependency on that file.

But still I think your search paths are messed up.
how does you config look like?
Where is ironruby located

did you pick a release or build from git?
---
Met vriendelijke groeten - Best regards - Salutations
Ivan Porto Carrero
Blog: http://flanders.co.nz
Twitter: http://twitter.com/casualjim
Author of IronRuby in Action (http://manning.com/carrero)



On Wed, Jun 17, 2009 at 7:25 PM, Mohammad Azam <lists at ruby-forum.com>
wrote:
>
> I tried with the path and got the following error:
>
> require File.dirname(__FILE__) + ''/libs/open-uri''
>
> C:\IronRubyProjects\IronRubyTaskListApplication>ir main_form.rb
> :0:in `require'': no such file to load -- uri (LoadError)
>        from ./libs/open-uri.rb:1
>        from main_form.rb:4
>        from :0:in `require''
>
>
> Ivan Porto carrero wrote:
> > what version of ironruby are you using?it looks like your search paths
> > are
> > messed up.
> >
> > for example does require File.dirname(__FILE__) +
''/libs/open-uri'' work?
> >
> > ---
> > Met vriendelijke groeten - Best regards - Salutations
> > Ivan Porto Carrero
> > Blog: http://flanders.co.nz
> > Twitter: http://twitter.com/casualjim
> > Author of IronRuby in Action (http://manning.com/carrero)
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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are you hosting ironruby in your application or are you using the ir command
to run it?
Are the paths correct in ir.exe.config?
---
Met vriendelijke groeten - Best regards - Salutations
Ivan Porto Carrero
Blog: http://flanders.co.nz
Twitter: http://twitter.com/casualjim
Author of IronRuby in Action (http://manning.com/carrero)



On Wed, Jun 17, 2009 at 7:26 PM, Mohammad Azam <lists at ruby-forum.com>
wrote:
>
> Here is the version:
>
>
> C:\IronRubyProjects\IronRubyTaskListApplication>ir -v
> IronRuby 0.5.0.0 on .NET 2.0.0.0
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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I am using ir command to run it. It is all ruby code.

I went to the 
C:\ironruby\ironruby\Merlin\External.LCA_RESTRICTED\Languages\Ruby\redist-libs\ruby\1.8
folder and run the following code:

require ''open-uri''

it asked for stringio (not sure why it was missing) so I placed it in 
the 1.8 folder and ran again and it worked. But now when I use the same 
files for my project libs/stringio.rb it does not work.


C:\IronRubyProjects\IronRubyTaskListApplication>ir main_form.rb
:0:in `require'': no such file to load -- uri (LoadError)
        from ./libs/open-uri.rb:1
        from main_form.rb:4
        from :0:in `require''


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

Actually I checked using the ir.exe command line and it did not work 
either. It seems like the

C:\ironruby\ironruby\Merlin\External.LCA_RESTRICTED\Languages\Ruby\redist-libs\ruby\1.8

and

C:\ironruby\ironruby\Merlin\Main\Languages\Ruby\Libs

contains duplicate rb files. One open-uri is for url and other is for 
file system. I think the dependencies are messed up!
-- 
Posted via http://www.ruby-forum.com/.

for me the compiled binaries end up in:

C:\tools\ironruby\merlin\main\bin\debug

and this is how the relevant tag looks like in that ir.exe.config file

<set option=''LibraryPaths''
language=''Ruby''
value=''..\..\Languages\Ruby\libs;..\..\..\External.LCA_RESTRICTED\Languages\Ruby\Ruby-1.8.6p287\lib\ruby\site_ruby\1.8;..\..\..\External.LCA_RESTRICTED\Languages\Ruby\Ruby-1.8.6p287\lib\ruby\site_ruby;..\..\..\External.LCA_RESTRICTED\Languages\Ruby\Ruby-1.8.6p287\lib\ruby\1.8''/>


I know it''s lame but it works for me.

+ C:\tools\ironruby
(master) ? ir
IronRuby 0.5.0.0 on .NET 2.0.50727.4918
Copyright (c) Microsoft Corporation. All rights reserved.
>>> require ''open-uri''
=> true
>>>

---
Met vriendelijke groeten - Best regards - Salutations
Ivan Porto Carrero
Blog: http://flanders.co.nz
Twitter: http://twitter.com/casualjim
Author of IronRuby in Action (http://manning.com/carrero)



On Wed, Jun 17, 2009 at 7:48 PM, Mohammad Azam <lists at ruby-forum.com>
wrote:
> I am using ir command to run it. It is all ruby code.
>
> I went to the
>
>
C:\ironruby\ironruby\Merlin\External.LCA_RESTRICTED\Languages\Ruby\redist-libs\ruby\1.8
> folder and run the following code:
>
> require ''open-uri''
>
> it asked for stringio (not sure why it was missing) so I placed it in
> the 1.8 folder and ran again and it worked. But now when I use the same
> files for my project libs/stringio.rb it does not work.
>
>
> C:\IronRubyProjects\IronRubyTaskListApplication>ir main_form.rb
> :0:in `require'': no such file to load -- uri (LoadError)
>        from ./libs/open-uri.rb:1
>        from main_form.rb:4
>        from :0:in `require''
>
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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Usually, the one in
> C:\ironruby\ironruby\Merlin\Main\Languages\Ruby\Libs
Contains hacks or workarounds to load the correct one from
> C:\ironruby\ironruby\Merlin\External.LCA_RESTRICTED\Languages\Ruby\re
> dist-libs\ruby\1.8
In other cases, the first one may simply load code from C#.

What does your ir.exe.config look like?

Thanks,
JD

...there is no try
> -----Original Message-----
> From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-
> bounces at rubyforge.org] On Behalf Of Mohammad Azam
> Sent: Wednesday, June 17, 2009 11:01 AM
> To: ironruby-core at rubyforge.org
> Subject: Re: [Ironruby-core] Accessing open-uri from the same directory
>
> Actually I checked using the ir.exe command line and it did not work
either. It
> seems like the
>
> C:\ironruby\ironruby\Merlin\External.LCA_RESTRICTED\Languages\Ruby\re
> dist-libs\ruby\1.8
>
> and
>
> C:\ironruby\ironruby\Merlin\Main\Languages\Ruby\Libs
>
> contains duplicate rb files. One open-uri is for url and other is for file
system.
> I think the dependencies are messed up!
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core

I have the exact same path in the ir.exe.config file. But I can only run 
the open-uri if I am in the lib folder where the file is physically 
located.

This is really strange!
-- 
Posted via http://www.ruby-forum.com/.

Here is the part of the ir.exe.config file.


 <microsoft.scripting>
    <languages>
      <language names="IronPython;Python;py"
extensions=".py"
displayName="IronPython 2.6 Alpha" 
type="IronPython.Runtime.PythonContext, IronPython, Version=2.6.0.10, 
Culture=neutral, PublicKeyToken=null" />
      <language names="IronRuby;Ruby;rb" extensions=".rb"
displayName="IronRuby" type="IronRuby.Runtime.RubyContext,
IronRuby,
Version=0.5.0.0, Culture=neutral, PublicKeyToken=null" />
    </languages>

    <options>
      <set language="Ruby" option="LibraryPaths" 
value="..\..\Languages\Ruby\libs\;..\..\..\External.LCA_RESTRICTED\Languages\Ruby\redist-libs\ruby\site_ruby\1.8\;..\..\..\External.LCA_RESTRICTED\Languages\Ruby\redist-libs\ruby\1.8\"
/>
    </options>
  </microsoft.scripting>
-- 
Posted via http://www.ruby-forum.com/.

Here is the complete ir.exe.config file:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="microsoft.scripting" 
type="Microsoft.Scripting.Hosting.Configuration.Section, 
Microsoft.Scripting, Version=0.9.6.10, Culture=neutral, 
PublicKeyToken=null" requirePermission="false" />
  </configSections>

  <microsoft.scripting>
    <languages>
      <language names="IronPython;Python;py"
extensions=".py"
displayName="IronPython 2.6 Alpha" 
type="IronPython.Runtime.PythonContext, IronPython, Version=2.6.0.10, 
Culture=neutral, PublicKeyToken=null" />
      <language names="IronRuby;Ruby;rb" extensions=".rb"
displayName="IronRuby" type="IronRuby.Runtime.RubyContext,
IronRuby,
Version=0.5.0.0, Culture=neutral, PublicKeyToken=null" />
    </languages>

    <options>
      <set language="Ruby" option="LibraryPaths" 
value="..\..\Languages\Ruby\libs\;..\..\..\External.LCA_RESTRICTED\Languages\Ruby\redist-libs\ruby\site_ruby\1.8\;..\..\..\External.LCA_RESTRICTED\Languages\Ruby\redist-libs\ruby\1.8\"
/>
    </options>
  </microsoft.scripting>
</configuration>
-- 
Posted via http://www.ruby-forum.com/.