Except as otherwise expressly provided by this section, in every civil action brought in any district court of the United States under the Act entitled “An Act to protect trade and commerce against unlawful restraints and monopolies”, approved July 2, 1890, or any other Acts having like purpose that have been or hereafter may be enacted, in which the United States is the complainant and equitable relief is sought, any appeal from a final judgement entered in any such action shall be taken to the court of appeals pursuant to sections 1291 and 2107 of title 28. Any appeal from an interlocutory order entered in any such action shall be taken to the court of appeals pursuant to sections 1292(a)(1) and 2107 of title 28 but not otherwise. Any judgment entered by the court of appeals in any such action shall be subject to review by the Supreme Court upon a writ of certiorari as provided in section 1254(1) of title 28.