v0.30.4

What's Changed

There were complaints about the lack of a deprecation cycle for the legacy name
mapping policy. This version addresses the issue:

• The handling introduced in v.0.30.2 (raising an exception for clarity)
  is retained for cases when no name mapping policy is specified but function
  signature contains defaults in non-kwonly args and kwonly args are also
  defined::

  def main(alpha, beta=1, *, gamma=2):  # error — explicit policy required
  

  In a similar case but when kwonly args are not defined Argh now assumes
  the legacy name mapping policy (BY_NAME_IF_HAS_DEFAULT) and merely issues
  a deprecation warning with the same message as the exception mentioned above::

  def main(alpha, beta=2):    # `[-b BETA] alpha` + DeprecationWarning
  

  This ensures that most of the old scripts still work the same way despite the
  new policy being used by default and enforced in cases when it's impossible
  to resolve the mapping conflict.

  Please note that this "soft" handling is to be removed in version v0.33
  (or v1.0 if the former is not deemed necessary). The new name mapping policy
  will be used by default without warnings, like in v0.30.

— by @neithere

Full Changelog: v0.30.3...v0.30.4