""" Creates a TarPackageArchive from a existing Package
Arguments:
log - logger
pkg - a DescriptorPackage instance
tar_file_hdl - a writeable file handle to write tar archive data
""" Creates a TarPackageArchive from a existing Package
Arguments:
log - logger
pkg - a DescriptorPackage instance
tar_file_hdl - a writeable file handle to write tar archive data