Simple Output

Numbers

Numbers are easy in python:

Integers

10, -4, 0

Reals

10.5, -30.3, 0.0

Imaginary

5j, -3J, (3+3j)

All the normal mathematical operators apply.

Python has several types of literal strings, use which ever is the most convenient:

Single quoted

'Single quoted strings must quote any \'s in them,
	  but "s don't have to be.'

Double quoted

"Double quoted strings must quote any \"s in them,
	  but 's don't have to be"

Triple quoted

"""Triple quoted strings are
   used when you want the
   string to span more than 
   one line."""

Python normally puts newlines at the end of a print statement:

print "foo"
print "bar"

outputs:

foo
bar

while

print "foo",
print "bar"

outputs:

foo bar

Note the space between foo and bar, this makes it easy to print out a lot of variables:

a="a"
b="b"
c="c"
print a,b,c

outputs:

a b c

but it can be a pain at times. A useful operator on strings is the multiplier:

print '-' * 30

outputs:

------------------------------

Python's print function supports a scanf type usage:

print "The value of pi is approximately %5.3f." % 3.14159265359

outputs:

The value of pi is approximately 3.142.

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Clinton Roy