This chapter begins our tour of the Python language. In an informal
sense, in Python, we do things with stuff. "Things" take the form of
operations like addition and concatenation, and "stuff" refers to the
objects on which we perform those operations. In this part of the book, our
focus is on that stuff, and the things our programs can do with it.
Somewhat more formally, in Python, data takes the form of
objectseither built-in objects that Python provides,
or objects we create using Python or external language tools such as C
extension libraries. Although we'll firm up this definition later, objects
are essentially just pieces of memory, with values and sets of associated
Because objects are the most fundamental notion in Python programming,
we'll start this chapter with a survey of Python's built-in object
By way of introduction, however, let's first establish a clear picture
of how this chapter fits into the overall Python picture. From a more
concrete perspective, Python programs can be decomposed into modules,
statements, expressions, and objects, as follows:
You have the skills to improve the way you interact with other people, influencing a more positive outcome for yourself, although there are still some common areas of concern that you need to consider before you can really say you live an anxiety-free life.
Ir you are unable to manage your time effectively you will not follow through on the promises you make yourself to improve your life. You might hnd yourself wanting and wishing things to be different but saying you dont have enough time to practise your new skills.
Time is a valuable commodity. How many times do you catch yourself saying, ‘I’d want to but don t have the time’ or There really does seem too much to do. ’ loo much activity leads to exhaustion; too little and you could become bored and frustrated. Ihere are 168 hours in a week and 8,760 hours in a 365-day year, and so with a finite amount of time it is important that you make the most of what you have. Try the following exercise to see how much of your time daily activities absorb.
Conventional sales wisdom says that there are two main types of selling professionals:
The Hunter: A meat-eating, fun-loving, gun-slinging, high-living, Cadillac-driving, close-em-at-any-cost salesdog.
The Farmer: A soft, cuddly, service-oriented, customer-loving, I-wanna-be-loved account manager.
This wisdom treats the skill-sets and personality traits of these types as if they were as different as night and day, as cats and dogs. Why is this conventional wisdom so prevalent? Lets examine some of the specific assumptions about the requirements of doing these two jobs that are presumed to be so different.
The Job of the Hunter:A Hunter, in the profession of selling, is a salesperson who is supposed to go out, find, and close new accounts. The Hunter must be tough as nails, highly resilient, able to quickly find opportunities, and above all else, be a closer in that old-fashioned sense we debunked in Chapter34.
The Job of the Farmer:A Farmer is a salesperson assigned to work with existing accounts a classic Account Manager. He must understand precisely what is going on within the account to ensure that the value of his product is being maximized, so that the customer would not seriously consider working with a competitor. The Farmer must also find opportunities for new applications for his products and services. He must develop relationships that serve his business well!
We are poised at the beginning of a new age: the Age of Nutraceuticals. Historically, we have seen that plants hold the secrets to many of our health problems and that pharmaceutical companies do not have the only effective products. The manufacturers of nutritional supplements are working today along parallel lines to conduct studies on plant derivatives that are more closely related to plants than their synthetic cousins.
These plant products and their components hold promises of greater health and a longer life at a fraction of the cost of pharmaceuticals. Modified citrus pectin is rapidly being recognized as one of the most important single nutraceuticals available today for both the prevention and treatment of serious illnesses. Scientific studies have demonstrated its usefulness in a number of different kinds of cancers, and its implications for heart disease and for removing heavy metal toxicity are both obvious and exciting. The studies that are being planned, or are underway, are expected to elicit still more applications.