can't read "dir": no such variable
    while executing
"file join $dir stringprep.tcl"
    (in namespace eval "::request" script line 1)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
package ifneeded stringprep 1.0.1 [list source [file join $dir stringprep.tcl]]
package ifneeded stringprep::data 1.0.1 [list source [file join $dir stringprep_data.tcl]]
package ifneeded unicode 1.0.0 [list source [file join $dir unicode.tcl]]
package ifneeded unicode::data 1.0.0 [list source [file join $dir unicode_data.tcl]]