如何在python中重置输入流？

我正在Python2.7中编写一个提示参数，以便使用命令行界面导入数据文件

REFERENCE = raw_input("Reference (*.shp):")
SEGMENTED = raw_input("Segmented (*.shp):")
METHOD = raw_input("Method (ke, pu, clinton):")
if METHOD != "ke" and METHOD != "pu" and METHOD != "clinton":
    raise ValueError("%s is not a valid method" % METHOD)
if METHOD == "ke" or METHOD == "clinton":
    THRESHOLD = input("Threshold (0.0 - 1.0):")
    if not check_threshold(THRESHOLD):
        raise AccuracyException("Threshold of %s is not valid" % THRESHOLD)
else:
    THRESHOLD = None
SEP = raw_input("Sep:")
if SEP != "space" and SEP != "tab" and SEP != "comma" and SEP != "colon" and SEP != "semicolon" and SEP != "hyphen" and SEP != "dot":
    raise ValueError("%s is not valid" % SEP)
HEADER = raw_input("Header (True/False):")
if HEADER.strip() != "True" and HEADER.strip() != "False":
    raise ValueError("%s is not valid" % HEADER)
# output 
OUTPUT = raw_input("Output (*.txt):")

---

加载后，我希望从一开始就重置，以便在不重新加载*.py文件的情况下导入新数据，因为我的目标是按照DJV的建议，使用py2exe将*.py转换为*.exe中的*.py，我认为这很简单，只要将脚本包装在while循环中，在用户完成所有选项后在while块的顶部继续

while True:
  REFERENCE = raw_input("Reference (*.shp):")
  SEGMENTED = raw_input("Segmented (*.shp):")
  METHOD = raw_input("Method (ke, pu, clinton):")
  if METHOD != "ke" and METHOD != "pu" and METHOD != "clinton":
    raise ValueError("%s is not a valid method" % METHOD)
  if METHOD == "ke" or METHOD == "clinton":
    THRESHOLD = input("Threshold (0.0 - 1.0):")
    if not check_threshold(THRESHOLD):
        raise AccuracyException("Threshold of %s is not valid" % THRESHOLD)
  else:
    THRESHOLD = None
  SEP = raw_input("Sep:")
  if SEP != "space" and SEP != "tab" and SEP != "comma" and SEP != "colon" and SEP != "semicolon" and SEP != "hyphen" and SEP != "dot":
    raise ValueError("%s is not valid" % SEP)
  HEADER = raw_input("Header (True/False):")
  if HEADER.strip() != "True" and HEADER.strip() != "False":
    raise ValueError("%s is not valid" % HEADER)
  # output 
  OUTPUT = raw_input("Output (*.txt):")

---

您的问题是什么？将所有内容放入

while

循环中，仅在用户输入时退出（一个附加输入，如

原始输入（“想要退出？”）

？@Robᵩ : 如何在python中重置输入流？