Python OS File/Directory os.fdatasync() Method Description The fdatasync() method forces the file with file descriptor fd to be written to disk. This does not force an update of the metadata. If you want to flush the buffer, you can use…
Python OS File/Directory os.closerange() Method Description The closerange() method closes all file descriptors from fd_low (inclusive) to fd_high (exclusive), ignoring errors. This method was introduced in Python 2.6. Syntax The syntax of the closerange() method is as follows: os.closerange(fd_low, fd_high)…
Python OS File/Directory os.write() Method Description The write() method writes the string str to the file descriptor fd. It returns the number of bytes actually written. Syntax Following is the syntax of the write() method: os.write(fd, str) Parameters fd –…
Python OS File/Directory os.dup() Method Description The dup() method returns a copy of the file descriptor fd, which can be used instead of the original descriptor. Syntax The syntax of the dup() method is as follows: os.dup(fd) Parameters fd –…
Python OS File/Directory os.fdopen() Method Description The method fdopen() returns an open file object connected to the file descriptor fd. You can then perform all defined functions on the file object. Syntax The syntax of the fdopen() method is as…
Python OS File/Directory os.fsync() Method Description The fsync() method writes the file corresponding to file descriptor fd to disk. If you have a Python file object f, first execute f.flush() and then execute os.fsync(f.fileno()) to ensure that all internal buffers…
Python OS File/Directory os.lseek() Method Description The lseek() method sets the current position of the file descriptor fd to the given position pos, modified according to how. Syntax The following is the syntax of the lseek() method: os.lseek(fd, pos, how)…
Python OS File/Directory os.open() Method Description Method open() Opens the file file, setting various flags according to flags and possibly setting its mode according to mode. The default mode is 0777 (octal), and the current umask value is first masked.…
Python OS File/Directory os.read() Method Description The read() method reads up to n bytes of data from file descriptor fd and returns a string containing the bytes read. If the end of the file pointed to by file descriptor fd…
Python OS File/Directory os.ftruncate() Method Description The ftruncate() method truncates the file corresponding to file descriptor fd to a size of at most length bytes. Syntax The syntax of the ftruncate() method is as follows: os.ftruncate(fd, length) Parameters fd −…