Pending removal in Python 3.18

• No longer accept a boolean value when a file descriptor is expected. (Contributed by Serhiy Storchaka in gh-82626.)

• decimal:

  • The non-standard and undocumented Decimal format specifier 'N', which is only supported in the decimal module’s C implementation, has been deprecated since Python 3.13. (Contributed by Serhiy Storchaka in gh-89902.)

• Deprecations defined by PEP 829:

  • import lines in name.pth files are silently ignored.

  (Contributed by Barry Warsaw in gh-148641.)