ex22 - revision

	#FUNCTIONS
print

raw_input([prompt])

from sys import argv
	sys			module / libraries
	argv		argument variable function
		var1, var2 = argv

from os.path import exists
	os.path		module
	exists		exists function
		exists(var)

open(filename, ['symbol'])
	'w'			write
	'r'			read (default)
	'a'			append
	'+'			read & write

f.read()
f.readline()
f.write(string)
f.truncate()
f.close()
f.seek(integer)

len(var)

def function_name(argument1, argument2):
	function formulae





	#SYMBOLS
#			hash / pound / mesh / oxgrid / octothorpe
""			double quotation marks
+			plus (concatenate or plus)
/			division sign
%			percentage sign / integer division remainder
-			minus sign
*			multiplication sign / asterisk
<			less-than
>			greater-than
<=			less-than-equal
>=			greater-than-equal
=			assignment operator
%s 			format string (string)
%d 			format string (integer)
%r 			format string (raw)
False		boolean value
True		boolean value
\			escape
\n			new line
\t 			tab
\r 			return
""", '''	triple quotes
_			underscore
+=			increment (eg. var += 1)