gio.FileInputStream Base class for implementing streaming input gio.FileInputStream gio.InputStream query_info attributes cancellableNone query_info_async attributes callback io_priorityglib.PRIORITY_DEFAULT cancellableNone user_dataNone query_info_finish result +-- gobject.GObject +-- gio.InputStream +-- gio.FileInputStream gio.FileInputStream implements gio.Seekable gio.FileInputStream provides input streams that take their content from a file. gio.FileInputStream implements gio.Seekable, which allows the input stream to jump to arbitrary positions in the file, provided the filesystem of the file allows it. In addition to the generic g_seekable_ API, gio.FileInputStream has its own API for seeking and positioning. To find the position of a file input stream, use gio.Seekable.tell(). To find out if a file input stream supports seeking, use gio.Seekable.can_seek(). To position a file input stream, use gio.Seekable.seek(). query_info attributes cancellableNone attributes : a file attribute query string. cancellable : optional gio.Cancellable object, None to ignore. Returns : a gio.FileInfo, or None on error. The query_info() method queries a file input stream the given attributes. This function blocks while querying the stream. For the asynchronous (non-blocking) version of this function, see gio.FileInputStream.query_info_async(). While the stream is blocked, the stream will set the pending flag internally, and any other operations on the stream will fail with gio.ERROR_PENDING. query_info_async attributes callback io_priorityglib.PRIORITY_DEFAULT cancellableNone user_dataNone attributes : a file attribute query string. callback : a GAsyncReadyCallback to call when the request is satisfied. io_priority : the of the request. cancellable : optional gio.Cancellable object, None to ignore. user_data : the data to pass to callback function. The query_info_async() method queries the stream information asynchronously. When the operation is finished callback will be called. You can then call gio.FileInputStream.query_info_finish() to get the result of the operation. For the synchronous version of this function, see gio.FileInputStream.query_info(). If cancellable is not None, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error gio.ERROR_CANCELLED will be set query_info_finish result result : a gio.AsyncResult. Returns : a gio.FileInfo, or None on error. The query_info_finish() method finishes an asynchronous file append operation started with gio.FileInputStream.query_info_async().