can't find package SOAP::WSDL
    while executing
"package require SOAP::WSDL"
    (in namespace eval "::request" script line 6)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
#!/usr/bin/tclsh

package require SOAP
package require uri
package require dom
package require SOAP::WSDL


set wsdl_url http://www.ncbi.nlm.nih.gov/entrez/eutils/soap/v2.0/eutils.wsdl
set tok [http::geturl $wsdl_url]
if {[http::status $tok] eq "ok"} {
    set wsdl [http::data $tok]
}
http::cleanup $tok

# Process the WSDL and generate Tcl script defining the SOAP accessors.

set doc  [dom::DOMImplementation parse $wsdl]
set impl [SOAP::WSDL::parse $doc]

puts "$impl"

eval [set $impl]