def __init__(self, file, mode="<STR_LIT:r>", compression=ZIP_STORED, allowZip64=False):
if mode not in ("<STR_LIT:r>", "<STR_LIT:w>", "<STR_LIT:a>"):<EOL><INDENT>raise RuntimeError('<STR_LIT>')<EOL><DEDENT>if compression == ZIP_STORED:<EOL><INDENT>pass<EOL><DEDENT>elif compression == ZIP_DEFLATED:<EOL><INDENT>if not zlib:<EOL><INDENT>raise RuntimeError("<STR_LIT>")<EOL><DEDENT><DEDENT>else:<EOL><INDENT>raise RuntimeError("<STR_LIT>")<EOL><DEDENT>self._allowZip64 = allowZip64<EOL>self._didModify = False<EOL>self.debug = <NUM_LIT:0>  <EOL>self.NameToInfo = {}    <EOL>self.filelist = []      <EOL>self.compression = compression  <EOL>self.mode = key = mode.replace('<STR_LIT:b>', '<STR_LIT>')[<NUM_LIT:0>]<EOL>self.pwd = None<EOL>self.comment = '<STR_LIT>'<EOL>if isinstance(file, str):<EOL><INDENT>self._filePassed = <NUM_LIT:0><EOL>self.filename = file<EOL>modeDict = {'<STR_LIT:r>' : '<STR_LIT:rb>', '<STR_LIT:w>': '<STR_LIT:wb>', '<STR_LIT:a>' : '<STR_LIT>'}<EOL>try:<EOL><INDENT>self.fp = open(file, modeDict[mode])<EOL><DEDENT>except IOError:<EOL><INDENT>if mode == '<STR_LIT:a>':<EOL><INDENT>mode = key = '<STR_LIT:w>'<EOL>self.fp = open(file, modeDict[mode])<EOL><DEDENT>else:<EOL><INDENT>raise<EOL><DEDENT><DEDENT><DEDENT>else:<EOL><INDENT>self._filePassed = <NUM_LIT:1><EOL>self.fp = file<EOL>self.filename = getattr(file, '<STR_LIT:name>', None)<EOL><DEDENT>if key == '<STR_LIT:r>':<EOL><INDENT>self._GetContents()<EOL><DEDENT>elif key == '<STR_LIT:w>':<EOL><INDENT>pass<EOL><DEDENT>elif key == '<STR_LIT:a>':<EOL><INDENT>try:                        <EOL><INDENT>self._RealGetContents()<EOL>self.fp.seek(self.start_dir, <NUM_LIT:0>)<EOL><DEDENT>except BadZipfile:          <EOL><INDENT>self.fp.seek(<NUM_LIT:0>, <NUM_LIT:2>)<EOL><DEDENT><DEDENT>else:<EOL><INDENT>if not self._filePassed:<EOL><INDENT>self.fp.close()<EOL>self.fp = None<EOL><DEDENT>raise RuntimeError('<STR_LIT>')<EOL><DEDENT>
Open the ZIP file with mode read "r", write "w" or append "a".