[MacPorts] #65990: Importing py310-oset generates "ImportError: cannot import name 'MutableSet' from 'collections'"

[MacPorts]

#65990: Importing py310-oset generates "ImportError: cannot import name
'MutableSet' from 'collections'"
-------------------------+--------------------
  Reporter:  outis       |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  High        |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  py310-oset  |
-------------------------+--------------------
Changes (by outis):

 * Attachment "py310-oset.patch" added.

 fix: updates module name

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Ticket URL: <https://trac.macports.org/ticket/65990>
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