In [https://groups.google.com/d/msg/comp.lang.tcl/crJ7BNsUJkY/9G4FEGoPaCgJ%|%tcl threads 2.1 question?], [comp.lang.tcl], 2001-09-05, [Donald Porter] gives a very nice example of the freedom that the programmer gains through the proper use of [namespace%|%namespaces].

The example speaks for itself:

======
# Someone provides the thread package with a thread::shared command:
namespace eval thread {
    namespace export shared
    proc shared {option args} {...}
}

# Author of the foo package has different opinions about names:
namespace eval foo {
    namespace import ::thread::shared
    # Shared what?  What a stupid ambiguous name!
    rename shared sharedVariable
    proc myLongCommandName {} {...; sharedVariable set counter 1; ...}
}

# Author of the bar package has yet a third view:
namespace eval bar {
    namespace import ::thread::shared
    # Stpd thrd pkg gonna give me RSI.
    rename shared sv
    proc x {} {...; sv set x 1; ...}
}
======

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