class LicenseFinder::Pip

def prepare
  prep_cmd = "#{prepare_command} -r #{@requirements_path}"
  _stdout, stderr, status = Dir.chdir(project_path) { Cmd.run(prep_cmd) }
  return if status.success?
  log_errors stderr
  raise "Prepare command '#{prep_cmd}' failed" unless @prepare_no_fail
end