cpython/Include/fileobject.h

/* File object interface */

#ifndef Py_FILEOBJECT_H
#define Py_FILEOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
	PyObject_HEAD
	FILE *f_fp;
	PyObject *f_name;
	PyObject *f_mode;
	int (*f_close)(FILE *);
	int f_softspace; /* Flag used by 'print' command */
	int f_binary; /* Flag which indicates whether the file is
			 open in binary (1) or test (0) mode */
} PyFileObject;

extern DL_IMPORT(PyTypeObject) PyFile_Type;

#define PyFile_Check(op) PyObject_TypeCheck(op, &PyFile_Type)
#define PyFile_CheckExact(op) ((op)->ob_type == &PyFile_Type)

extern DL_IMPORT(PyObject *) PyFile_FromString(char *, char *);
extern DL_IMPORT(void) PyFile_SetBufSize(PyObject *, int);
extern DL_IMPORT(PyObject *) PyFile_FromFile(FILE *, char *, char *,
                                             int (*)(FILE *));
extern DL_IMPORT(FILE *) PyFile_AsFile(PyObject *);
extern DL_IMPORT(PyObject *) PyFile_Name(PyObject *);
extern DL_IMPORT(PyObject *) PyFile_GetLine(PyObject *, int);
extern DL_IMPORT(int) PyFile_WriteObject(PyObject *, PyObject *, int);
extern DL_IMPORT(int) PyFile_SoftSpace(PyObject *, int);
extern DL_IMPORT(int) PyFile_WriteString(const char *, PyObject *);
extern DL_IMPORT(int) PyObject_AsFileDescriptor(PyObject *);

/* The default encoding used by the platform file system APIs
   If non-NULL, this is different than the default encoding for strings 
*/
extern DL_IMPORT(const char *) Py_FileSystemDefaultEncoding;

#ifdef __cplusplus
}
#endif
#endif /* !Py_FILEOBJECT_H */