can't read "dir": no such variable
    while executing
"file join $dir yaml.tcl"
    (in namespace eval "::request" script line 4)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
if {![package vsatisfies [package provide Tcl] 8.5]} {return}

package ifneeded yaml         0.4.1 [list source [file join $dir yaml.tcl]]
package ifneeded huddle       0.3   [list source [file join $dir huddle.tcl]]
package ifneeded huddle::json 0.1   [list source [file join $dir json2huddle.tcl]]