[Python] How can I replace multiple items in a string using a dictionary when the matched...

Given this dictionary and input strings:

d = { 'one': '1',
'two': '2',
'three': '3'
}

s1 = 'String containing <#one|> or <#two|> numbers. <#one|>, <#two|>, <#three|>'
s2 = 'Only replace items which are anchored. <#one|> is replaced, but not this one.'


How can I replace each occurrence of an anchored item <# |> using the dictionary d? The above strings should produce the output:

String containing 1 or 2 numbers. 1, 2, 3
Only replace items which are anchored. 1 is replaced, but not this one.


Using single pass multi replacement described here comes close to solving this, but doesn't handle the anchors.

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