February 2013
Intermediate to advanced
304 pages
6h 45m
English
Content preview from Programming ArcGIS 10.1 with Python CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 12. Error Handling and Troubleshooting
In this chapter, we will cover the following recipes:
- Exploring the default Python error message
- Adding Python exception handling structures (try/except/finally)
- Retrieving tool messages with GetMessages()
- Filtering tool messages by severity level
- Returning individual messages with GetMessage()
- Testing for and responding to specific error messages
Introduction
Various messages are returned during the execution of ArcGIS geoprocessing tools and functions. These messages can be informational in nature or indicate warning or error conditions that can result in the tool not creating the expected output or in outright failure of the tool to execute. These messages do not appear as message boxes. Instead, you will ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.