December 2000
Intermediate to advanced
816 pages
16h 57m
English
Content preview from Core Python Programming
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3.2. Variable Assignment
This section focuses on variable assignment. We will discuss which identifiers make valid variables coming up in Section 3.3.
Equal sign ( = ) is the assignment operator
The equal sign ( = ) is the main Python assignment operator
anInt = -12 String = 'cart' aFloat = -3.1415 * (5.0 ** 2) anotherString = 'shop' + 'ping' aList = [ 3.14e10, '2nd elmt of a list', 8.82-4.371j ]
Be aware now that assignment does not explicitly assign a value to a variable, although it may appear that way from your experience with other programming languages. In Python, objects are referenced, so on assignment, a reference (not a value) to an object is what is being assigned, whether the object was just created or was a pre-existing object. ...
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