Files in jython

Files

File objects are handled with built-in functions. The open method is used to open a file for reading or writing operations.

The following table shows the most common methods used for files

F

Operation	Description
f = open(filename [, mode='r'])	Opens a file in the proper mode: mode : 'r' : Read 'w' : Write. Create the file if it does not exist 'a' : Append. '+' : (added to the previous modes - example 'a+') opens the file for updates 'b' : (added to the previous modes - example 'rb') open the file in binary mode
f.close()	Closes the f file
f.fileno()	Returns descriptor of the f file
f.flush()	Empties the internal buffer of f
f.isatty()	Returns true if f is a TTY
f.read([size])	Reads a maximum of size bytes from the file and returns a string
f.readline()	Reads a line from f
f.readlines()	Reads until the end of file (EOF) and returns a list of lines
f.xreadlines()	Returns a sequence without reading until the end of file (preferred to readlines()
f.seek(offset[, whence=0])	Sets the file's current position to 'offset' bytes from 'whence': 0: from the beginning of the file 1: from the current location 2: from the end of the file
f.tell()	Returns the current location in the file
f.write(str)	Writes str into the file
f.writelines(list)	Writes a list of strings in the file