can't find package biotext
    while executing
"package require biotext"
    (in namespace eval "::request" script line 49)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
#!/usr/local/bin/wish

set Lignes "I white magenta
J white magenta
L white magenta
M white magenta
V white magenta
R white blue
K white blue
F white red
Y white red
W white red
D white forestgreen
B white forestgreen
E white forestgreen
Z black green
Q black green
P white black
G black orange
H black cyan
N black cyan
S white darkviolet
T white darkviolet
A white darkviolet
U white darkviolet
C white darkviolet
X black dimgrey
. black dimgrey
0 black white
1 black white
2 black white
3 black white
4 black white
5 black white
    6 black white
7 black white
8 black white
9 black white
Space white white"

set Lmap [list]
foreach l [split $Lignes \n] {
    lassign [split [string trim $l] " "] n f b
    if {$n eq "Space"} {set n " "}
    lappend Lmap [list $n $f $b]
}

set auto_path [linsert $auto_path 0 /Volumes/moumou/Build/ToPack/lib]
package require biotext

pack [biotext .t]

set seq "AC..DEF.GHI.KL....MNPQ..RST.V..W..Y"
set Lseq [string repeat 20 $seq]

.t configure -foreground black -background DimGray
.t sequences $LSeq
.t mapping $Lmap
.t map on
.t configure -state normal