Function set_if_unset

scripts/gh_release.py:268–274

(name, value)

        env_extra = dict()
    
        def set_if_unset(name, value):
            v = os.environ.get(name)
            if v is None:
                log( f'Setting environment {name=} to {value=}')
                env_extra[ name] = value
            else:
                log( f'Not changing {name}={v!r} to {value!r}')
        set_if_unset( 'CIBW_BUILD_VERBOSITY', '1')
        # We exclude pp* because of `fitz_wrap.obj : error LNK2001: unresolved
        # external symbol PyUnicode_DecodeRawUnicodeEscape`.