On Tue, 8 Aug 2006, Tom Wilson wrote:
> could someone explain to me how the "import" function works?
Hi Tom,
Take a look at:
http://www.python.org/doc/tut/node8.html
and see if that helps; if not, come back and please feel free to ask more
questions about it. In a short summary: import allows us to load
additional "modules" into our program. These modules are often written by
other people, and provide a lot of interesting functions. There are a set
of modules that come standard with each Python distribution:
http://www.python.org/doc/lib/
For example, if we wanted to get an approximate value for pi, we could
find that in the 'math' module:
http://www.python.org/doc/lib/module-math.html
and to use it, we'd use 'import' to first pull math support into our
program:
######
import math
######
after which we can reach in and get a piece of pi:
######
print math.pi
######
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