[issue39624] Trace greedy replaces $prefix and $exec_prefix

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:

str.replace() can be replaced with re.sub() and \b marker.

Example:

>>> re.sub(r'\$prefix\b', '[xxx]', '$prefix $prefixpath')
'[xxx] $prefixpath'

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39624>
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