Python scripts should follow a common structure. By the end of this chapter, you will have learned the following: Finally, you'll learn how to access modules that provide additional functionality to the Python language. In addition to this, we'll cover statements, including decision support and looping structures to make decisions in your code, and/or looping through a code block multiple times along with the with statement, which is used extensively with the cursor objects from the ArcPy data access module that are used to insert, search, and update data.

We'll introduce you to these complex data structures, which you'll use extensively when you write geoprocessing scripts with ArcGIS. Classes and objects are a fundamental concept in object-oriented programming and in the Python language. Next, we'll look at the various built-in data types that Python offers, such as strings, numbers, lists, and dictionaries. From there, we'll delve into language features, such as adding comments to your code, creating and assigning data to variables, and built-in variable typing with Python, which makes coding with Python easy and compact. Initially, we'll cover how to create new Python scripts and edit existing scripts. In this chapter, we'll cover many of the basic language constructs found in Python.

Python supports many of the programming constructs found in other languages. Chapter 1. Fundamentals of the Python Language for ArcGIS

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