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Direktori : /proc/thread-self/root/proc/self/root/lib64/python2.7/ |
Current File : //proc/thread-self/root/proc/self/root/lib64/python2.7/StringIO.pyc |
� \цdc @ s| d Z y d d l m Z Wn e k r3 d Z n Xd g Z d � Z d d d � � YZ d � Z e d k rx e � n d S( s File-like objects that read from or write to a string buffer. This implements (nearly) all stdio methods. f = StringIO() # ready for writing f = StringIO(buf) # ready for reading f.close() # explicitly release resources held flag = f.isatty() # always false pos = f.tell() # get current position f.seek(pos) # set current position f.seek(pos, mode) # mode 0: absolute; 1: relative; 2: relative to EOF buf = f.read() # read until EOF buf = f.read(n) # read up to n bytes buf = f.readline() # read until end of line ('\n') or EOF list = f.readlines()# list of f.readline() results until EOF f.truncate([size]) # truncate file at to at most size (default: current pos) f.write(buf) # write at current position f.writelines(list) # for line in list: f.write(line) f.getvalue() # return whole file's contents as a string Notes: - Using a real file is often faster (but less convenient). - There's also a much faster implementation in C, called cStringIO, but it's not subclassable. - fileno() is left unimplemented so that code which uses it triggers an exception early. - Seeking far beyond EOF and then writing will insert real null bytes that occupy space in the buffer. - There's a simple test set (see end of this file). i����( t EINVALi t StringIOc C s | r t d � n d S( Ns I/O operation on closed file( t ValueError( t closed( ( s /usr/lib64/python2.7/StringIO.pyt _complain_ifclosed&