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23 lut 2013 · In short, open() creates new file objects, os.open() creates OS-level file descriptors, and os.fdopen() creates a file object out of a file descriptor. File descriptors are a low-level facility for working with files directly provided by the operating system kernel.
The os.fdopen() method returns an open file object connected to a file. Note: Available on both WINDOWS and UNIX platforms.
15 lut 2024 · This function allows us to convert a file descriptor (fd) into a corresponding file object, unleashing a range of possibilities for handling files with greater flexibility. Python’s os. open () method returns an open file object connected to the fd file descriptor.
This function is intended for low-level I/O. For normal usage, use the built-in function open(), which returns a file object with read() and write() methods (and many more). To wrap a file descriptor in a file object, use fdopen().
12 sty 2010 · I found out how to do direct I/O reading from a file: convert it into a file object and the use the readinto() method of python file objects to read into the mmap’d buffer. To add onto the original code above: fo = os.fdopen(f, ‘rw’) fo.readinto(m)
The fdopen () method of Python OS module accepts a file descriptor as a parameter value and returns a corresponding file object. This allows us to perform all the defined operations, such as reading and writing on the given file object.
The file descriptor is not dup'ed, and will be closed when the stream created by fdopen() is closed. The result of applying fdopen() to a shared memory object is undefined. In Python 3 os.fdopen is a wrapper/almost-alias for the open builtin function:
