[MacPorts] #64457: build.py script in source code overrides 'build' tool

[MacPorts]

#64457: build.py script in source code overrides 'build' tool
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 Reporter:  blazewicz  |      Owner:  (none)
     Type:  defect     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.7.1
 Keywords:             |       Port:
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 I found this issue while investigating
 https://trac.macports.org/ticket/64425.

 When source code of Python project contains a script called `build.py` or
 a submodule called `build` it will override global installation of the
 {{{build}}} tool. This is when MacPorts invokes {{{/path/to/python -m
 build ...}}} local script/module will be invoked instead of intended tool.
 In such cases pep517 build will always fail.

 Issue begun after https://github.com/macports/macports-
 ports/commit/e94c8a1 and so far I found that it affects {{{py-pendulum}}}
 port.

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Ticket URL: <https://trac.macports.org/ticket/64457>
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