Can require 'date' be used in irb

ruby-talk
1

i get a lot of errors when i require 'date' in irb what's wrong
=> ["c:/ruby/lib/ruby/site_ruby/1.8",
"c:/ruby/lib/ruby/site_ruby/1.8/i386-ms
t", "c:/ruby/lib/ruby/site_ruby", "c:/ruby/lib/ruby/1.8",
"c:/ruby/lib/ruby/1
i386-mswin32", "."]
irb(main):003:0> require 'c:/ruby/lib/ruby/1.8/date.rb'
c:/ruby/lib/ruby/1.8/date.rb:238: warning: already initialized constant
MONTH
ES
c:/ruby/lib/ruby/1.8/date.rb:243: warning: already initialized constant
DAYNA

c:/ruby/lib/ruby/1.8/date.rb:247: warning: already initialized constant
ABBR_
THNAMES
c:/ruby/lib/ruby/1.8/date.rb:250: warning: already initialized constant
ABBR_
NAMES
c:/ruby/lib/ruby/1.8/date.rb:254: warning: already initialized constant
ITALY
c:/ruby/lib/ruby/1.8/date.rb:258: warning: already initialized constant
ENGLA
c:/ruby/lib/ruby/1.8/date.rb:262: warning: already initialized constant
JULIA
c:/ruby/lib/ruby/1.8/date.rb:266: warning: already initialized constant
GREGO
N
NameError: undefined method `today' for `DateTime'
        from c:/ruby/lib/ruby/1.8/date.rb:1261:in `undef_method'
        from c:/ruby/lib/ruby/1.8/date.rb:1261
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in
quire__'
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in
quire'

···

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

2

You're trying too hard. Just do
require 'date'

(What's happening is that date has already been required and added to $LOADED_FEATURES. But since you use the _full_ path to date it doesn't realize it's been required and requires the file again, giving you all those lovely errors. (The reason date has been already required is probably that you have RUBYOPT set to load rubygems))

···

On Jun 30, 2006, at 9:01 PM, dave rose wrote:

i get a lot of errors when i require 'date' in irb what's wrong
=> ["c:/ruby/lib/ruby/site_ruby/1.8",
"c:/ruby/lib/ruby/site_ruby/1.8/i386-ms
t", "c:/ruby/lib/ruby/site_ruby", "c:/ruby/lib/ruby/1.8",
"c:/ruby/lib/ruby/1
i386-mswin32", "."]
irb(main):003:0> require 'c:/ruby/lib/ruby/1.8/date.rb'
c:/ruby/lib/ruby/1.8/date.rb:238: warning: already initialized constant
MONTH
ES
c:/ruby/lib/ruby/1.8/date.rb:243: warning: already initialized constant
DAYNA

c:/ruby/lib/ruby/1.8/date.rb:247: warning: already initialized constant
ABBR_
THNAMES
c:/ruby/lib/ruby/1.8/date.rb:250: warning: already initialized constant
ABBR_
NAMES
c:/ruby/lib/ruby/1.8/date.rb:254: warning: already initialized constant
ITALY
c:/ruby/lib/ruby/1.8/date.rb:258: warning: already initialized constant
ENGLA
c:/ruby/lib/ruby/1.8/date.rb:262: warning: already initialized constant
JULIA
c:/ruby/lib/ruby/1.8/date.rb:266: warning: already initialized constant
GREGO
N
NameError: undefined method `today' for `DateTime'
        from c:/ruby/lib/ruby/1.8/date.rb:1261:in `undef_method'
        from c:/ruby/lib/ruby/1.8/date.rb:1261
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in
quire__'
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in
quire'

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

3

sounds like your install is messed up:

Mini:~ kev$ irb
irb(main):001:0> require 'date'
=> true

···

On 6/30/06, dave rose <bitdoger2@yahoo.com> wrote:

i get a lot of errors when i require 'date' in irb what's wrong
=> ["c:/ruby/lib/ruby/site_ruby/1.8",
"c:/ruby/lib/ruby/site_ruby/1.8/i386-ms
t", "c:/ruby/lib/ruby/site_ruby", "c:/ruby/lib/ruby/1.8",
"c:/ruby/lib/ruby/1
i386-mswin32", "."]
irb(main):003:0> require 'c:/ruby/lib/ruby/1.8/date.rb'
c:/ruby/lib/ruby/1.8/date.rb:238: warning: already initialized constant
MONTH
ES
c:/ruby/lib/ruby/1.8/date.rb:243: warning: already initialized constant
DAYNA

c:/ruby/lib/ruby/1.8/date.rb:247: warning: already initialized constant
ABBR_
THNAMES
c:/ruby/lib/ruby/1.8/date.rb:250: warning: already initialized constant
ABBR_
NAMES
c:/ruby/lib/ruby/1.8/date.rb:254: warning: already initialized constant
ITALY
c:/ruby/lib/ruby/1.8/date.rb:258: warning: already initialized constant
ENGLA
c:/ruby/lib/ruby/1.8/date.rb:262: warning: already initialized constant
JULIA
c:/ruby/lib/ruby/1.8/date.rb:266: warning: already initialized constant
GREGO
N
NameError: undefined method `today' for `DateTime'
        from c:/ruby/lib/ruby/1.8/date.rb:1261:in `undef_method'
        from c:/ruby/lib/ruby/1.8/date.rb:1261
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in
quire__'
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in
quire'

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

--
Kevin Clark
http://glu.ttono.us

4

Hello Logan,

···

On Jun 30, 2006, at 9:01 PM, dave rose wrote:
(What's happening is that date has already been required and added to
$LOADED_FEATURES. But since you use the _full_ path to date it

You are right, but i hope that somebody changes this in the future.
Storing relative file paths should be forbidden. It's not that
difficult in this case but it gets a real problem if it is relative to
"." and some library code changes the current working directory.

It is also a pure horror for us tool writers.

--
Best regards, emailto: scholz at scriptolutions dot com
Lothar Scholz http://www.ruby-ide.com
CTO Scriptolutions Ruby, PHP, Python IDE 's

5

1.9 stores full paths.

···

On Jun 30, 2006, at 9:59 PM, Lothar Scholz wrote:

Hello Logan,

> On Jun 30, 2006, at 9:01 PM, dave rose wrote:
> (What's happening is that date has already been required and added to
> $LOADED_FEATURES. But since you use the _full_ path to date it

You are right, but i hope that somebody changes this in the future.
Storing relative file paths should be forbidden. It's not that
difficult in this case but it gets a real problem if it is relative to
"." and some library code changes the current working directory.

--
Eric Hodel - drbrain@segment7.net - http://blog.segment7.net
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