invalid command name "::opdb::NewOPdb"
    while executing
"::opdb::NewOPdb"
    (in namespace eval "::request" script line 3)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
catch {interp alias {} ::opdb1 {} }
catch {interp alias {} ::opdb2 {} }
set a [::opdb::NewOPdb]
$a readpdb -download 1ile
$a resname -chain A