正则表达式在空闲时工作但不是脚本

Question

我正在使用正则表达式查找json文件中的数据元素。我已经定义了5种模式。

from pathlib import Path                # path, iterdir
import fileinput                        # read file input
import re                               # regular expressions
import os

def main():
    mainList = []                                           # the list of elements to populate
    p1 = re.compile('\s*(\[|{),')                           # pattern: open group              e.g., '     {'
    p2 = re.compile('\s*(\]|}),?')                          # pattern: close group             e.g., '     }'
    p3 = re.compile('\s*".*": (\[|{)')                      # pattern: element, no value       e.g., '  "lnccodes": ['
    p4 = re.compile('\s*".*": (".*"|[^[{]*),?')             # pattern: element & value         e.g., '  "abnormal": false,'
    p5 = re.compile('\s*".*"')                              # pattern: value only (rare; lab)  e.g., '  "urn:cl:ien:60:205:72"'
    p = Path(os.getcwd())                                   # create a path

    for file in p.glob('lab' + '*' + '.json'):              # inner loop through files to read elements and values
        infile = open(file.name, 'r')                           # open file
        start = False                                           # initialize start
        lineNumber = 0
        for line in infile:                                     # for each line in the selected file
            lineNumber = lineNumber + 1
            if start:                                           # if we've gotten to the data in the file
                splitLine = line.split('"')                     # get parsed array of parts
                if re.fullmatch(p4, line):                      # test most common match first --  this is element & value
                    element = splitLine[1]
                    if splitLine[2].strip() == ':':             # if not string, get value from 
                        value = splitLine[3]
                    else:
                        value = splitLine[2].split(':')         # remove ':' from values
                    mainList.append((element, value, file.name, lineNumber))
                    continue                                    # once a match is found & processed, get the next line
                elif re.fullmatch(p1, line):
                    continue
                elif re.fullmatch(p2, line):
                    continue
                elif re.fullmatch(p3, line):
                    element = splitLine[1]
                    continue
                elif re.fullmatch(p5, line):
                    value = splitLine[1]
                    mainList.append((element, value, file.name, lineNumber))
                    continue
            else:
                if "[" in line:                                             # look for beginning of data
                    start = True                                            # indicate it has started
                    element = None                                       # initialize element
                    infile.readline()                                       # start has one [ and one {
                    lineNumber = lineNumber + 1                             # so we skip the { artificially

        infile.close()
        for k in mainList:
            print(k)
main()

所有模式在IDLE中始终如一。

＃4在脚本中一致地工作; ＃2有时会工作（没有前导空格）。添加原始标志似乎没有任何效果。

我做错了什么？