can't read "dir": no such variable
    while executing
"file join $dir calendar.tcl"
    (in namespace eval "::request" script line 2)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
if { ! [package vsatisfies [package provide Tcl] 8.2] } {return}
package ifneeded calendar 0.2 [list source [file join $dir calendar.tcl]]