mzURL.py 文件源码

def __init__(self, data_file, verbose=False, **kwargs):
        self.file_type = 'mzurl'
        # strip off the final slash, if it exists
        if data_file[-1] == '/':
            data_file = data_file[:-1]
        # Likewise, html or other madness.
        if any([data_file.lower().endswith(x) for x in ['html', 'raw', 'wiff']]):
            data_file = ".".join(data_file.split(".")[:-1])
        self.data_file = data_file # actually a URL to a file
        self.verbose = verbose

        self._scans = None # cache of scan_info results for the whole file

        # A string with the name and path of an appropriate temp file
        # (varies by platform)
        fd, self.cookie_file_name = tempfile.mkstemp(text=True)
        os.close(fd)

        # Handle to libcurl object
        self.crl = pycurl.Curl()

        # set some general options
        self.crl.setopt(pycurl.COOKIEFILE, self.cookie_file_name)
        self.crl.setopt(pycurl.COOKIEJAR, self.cookie_file_name)
        self.crl.setopt(pycurl.FOLLOWLOCATION, True)
        self.crl.setopt(pycurl.VERBOSE, verbose)

        self.output = cStringIO.StringIO()
        self.crl.setopt(pycurl.WRITEFUNCTION, self.output.write)

        # how would you store an info file?
        #if os.path.exists(data_file + '.mzi'):
            #self._info_file = data_file + '.mzi'
            #info_fh = open(self._info_file)
            #self._info_scans = cPickle.load(info_fh)
            #info_fh.close()
        #else:
            #self._info_file = None