Esempio n. 1
0
 def __init__(self, file, mode, bufsize):
     import os
     self.__filename = file
     self.__backup = file + '~'
     try:
         os.unlink(self.__backup)
     except os.error:
         pass
     try:
         os.rename(file, self.__backup)
     except os.error:
         self.__backup = None
     self.__file = _orig_open(file, mode, bufsize)
     self.closed = self.__file.closed
     self.fileno = self.__file.fileno
     self.flush = self.__file.flush
     self.isatty = self.__file.isatty
     self.mode = self.__file.mode
     self.name = self.__file.name
     self.read = self.__file.read
     self.readinto = self.__file.readinto
     self.readline = self.__file.readline
     self.readlines = self.__file.readlines
     self.seek = self.__file.seek
     self.softspace = self.__file.softspace
     self.tell = self.__file.tell
     self.truncate = self.__file.truncate
     self.write = self.__file.write
     self.writelines = self.__file.writelines
Esempio n. 2
0
def open(file, mode = 'r', bufsize = -1):
    if 'w' not in mode:
        return _orig_open(file, mode, bufsize)
    return _BkFile(file, mode, bufsize)