while1 with pop block

[rocky]

# From 3.4.4 mailcap.py
# Bug was needing a grammar rule to add POP_BLOCK before the end of the while1.
# 3.3 apparently doesn't add this.
def readmailcapfile(line):
    while 1:
        if not line: break
        if line[0] == '#' or line.strip() == '':
            continue
        if not line:
            continue
        for j in range(3):
            line[j] = line[j].strip()
        if '/' in line:
            line['/'].append('a')
        else:
            line['/'] = 'a'
    return

Traceback (most recent call last):
  File "./unpyc3.py", line 2023, in <module>
    print(decompile(sys.argv[1]))
  File "./unpyc3.py", line 1197, in __str__
    self.display(istr)
  File "./unpyc3.py", line 1203, in display
    stmt.display(indent)
  File "./unpyc3.py", line 1046, in display
    self.display_undecorated(indent)
  File "./unpyc3.py", line 1070, in display_undecorated
    self.code.get_suite().display(indent + 1)
  File "./unpyc3.py", line 304, in get_suite
    dec.run()
  File "./unpyc3.py", line 1264, in run
    new_addr = method(addr, arg)
  File "./unpyc3.py", line 1330, in SETUP_LOOP
    d_body.run()
  File "./unpyc3.py", line 1262, in run
    new_addr = method(addr)
  File "./unpyc3.py", line 1579, in STORE_SUBSCR
    self.store(PySubscript(expr, sub))
  File "./unpyc3.py", line 1287, in store
    val.store(self, dest)
AttributeError: 'WhileStatement' object has no attribute 'store'