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# (C) Copyright 2005-2025 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in LICENSE.txt and may be redistributed only under
# the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
"""
A re-usable method for calculating a unique name given a list of existing
names.
"""
def make_unique_name(base, existing=[], format="%s_%s"):
"""
Return a name, unique within a context, based on the specified name.
base: the desired base name of the generated unique name.
existing: a sequence of the existing names to avoid returning.
format: a formatting specification for how the name is made unique.
"""
count = 2
name = base
while name in existing:
name = format % (base, count)
count += 1
return name
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