Esri South Africa Python for Everyone

Python for Everyone

Introduction

Rudolf Eduard Matthew Lawrence

Presenters:

Presentation Outline

1. Introduction.

2. What is Python?

3. Why Python?

4. Where does it fit in?

5. Automate Workflow (Desktop)

6. Automate Workflow (Server)

7. ArcGIS Resources centres

8. Training

9. Closing

What is Python?

• Python was created in 1990 by Guido van Rossum

“Python is an easy to learn, powerful language… (with) high-level

data structures and a simple but effective approach to

object-oriented programming. Python’s elegant syntax and

dynamic typing…make it an ideal language for scripting…in many

areas and on most platforms.” –python.org

• Scripting language of ArcGIS

• Free, cross-platform, easy to learn, widely used, great community

Why Python?

• Automating workflow

• Productivity (faster)

• Cross platform

• Industry and Open Standards

• Scripting language

• Extend Model builder

• Scheduled tasks

• Standard install with ArcGIS

• Integrated with ArcGIS (ArcPy)

ArcGIS integration (ArcPY)

• Creates a useful and productive way to execute geographic

data analysis, data conversion, data management, and map

automation within the Python framework.

• ArcGIS applications written with ArcPy provide access to

numerous additional libraries available in the Python

community.

• GIS professionals and programmers can

benefit from integration with these

various disciplines.

Where does it fit in?

Automate Workflow (Desktop)

• Extending Geoprocessing in model builder• Automating repetitive tasks• Scheduled tasks• Bulk metadata reporting• Multiple Layouts

Automate Workflow (Desktop)

• Attribute manipulation• Geometry manipulation &

automation• Integrate 3rd party functions (non-Esri)

Demo (Desktop)

• Field calculator

• From model to script

• Script scheduling

• Batch process with log

• Batch process with email

• Batch metadata extraction

• Enhanced Data Driven Pages

• Geometry operations

• Sample Scripts

• ArcPY Documentation / Help reference

• Python window – (run buffer example)

• ArcPY list function – (list layers or MXD’s)

• Working with selections – (sample from training)

• Geometry – (sample from training)

• Sharing Geoprocessing package – (buffer / clip tool)

Demo (Desktop)

Automate Workflow (Server)

• Geodatabase admin tasks (compress)• ArcGIS Server admin tasks (start /stop services, status, logs)• Geoprocessing – Data extraction (clip & ship)• Printing (script)

GeodatabaseArcGIS Server

Geoprocessing

Printing

Automate Workflow

Demo (Server)

• Geodatabase automation tasks− Compress− Replication− other

• ArcGIS Server− Data extraction− Advanced printing− Administrative tasks

Need more info on Python…?

• Resources.esri.com− Concepts− Samples− Community− Video− Galleries

• Desktop Help and Tutorials

• Official Training courses

Official Python Training

• ArcGIS 3 Performing Analysis

• Introduction to Geo-processing Scripts using Python.

Are there any Questions?