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Posted on January 7, 2023 (Updated on July 10, 2025)

Using Python from both OSGeo4W and ArcGIS Desktop?

Hiking & Activities

How to use Python with ArcGIS?

The simplest way to use Python in ArcGIS is to enter Python commands into the Python window. The Python window prompts with three greater-than symbols (>>>), indicating the first line of the code block to execute. Simple Python syntax can be immediately entered and executed from this first line.

Can I install Qgis and ArcGIS on the same computer?

Only one version of ArcGIS can be installed in your computer at a time, which is usually the latest version. So, it is not possible to use two versions at the same time to check on the data. While you can have multiple versions of QGIS installed on your computer at the same time.

Can I run ArcPy without ArcGIS?

With ArcMap, No. Arcpy is at many levels tied directly to one of the esri products, so you just can’t run stuff on machines with neither installed.
 

What version of Python does ArcGIS use?

Python 3

The primary differences are that ArcGIS Pro uses Python 3 and other ArcGIS products use Python 2, and ArcPy has some differences in the tools it includes; for example, the arcpy. mapping module is replaced by the arcpy.mp module.

Is ArcGIS desktop being phased out?

Does this mean that ArcMap is going away? No. Even after support for ArcMap ends in 2026, customers can continue to use ArcMap as long as their license is valid. However, all desktop development efforts are focused on ArcGIS Pro, and customers are encouraged to migrate to ArcGIS Pro.

Is Python or R better for GIS?

While R is good at visualization and statistical analysis, Python is particularly good at working with file systems, networks, web scraping, and automation. This is why Python is the default programming language for QGIS and ArcGIS, instead of R.
 

Do I need to install Python before QGIS?

QGIS, as distributed by OSGeo4W, usually comes with its own Python installation and its own packages that are independent of your “regular” Python installation. The easiest way to install a Python package into the OSGeo4W distribution is to open the OSGeo4W Shell and use pip from there.
 

Is QGIS harder than ArcGIS?

QGIS is the lean and nimble open-source version of ArcGIS. Simpler than ArcGIS, it is perfect for small projects which use less data, and since it’s free, it’s ideal for organizations with leaner budgets. It’s compatible with ArcGIS, however, so QGIS users can still accept and work with ArcGIS-specific files.
 

Why ArcGIS is better than QGIS?

QGIS is much faster than ArcGIS. Reliability: ArcGIS has better spatial topological analytical capabilities and provides more reliable results. The value of cluster tolerance in arc map is limited to 0.0000009.



20 Differences between QGIS and ArcGIS.

Differences QGIS ArcGIS
Reliability More reliable Comparatively less reliable

How do I add a Python script to ArcGIS?

In the list of side tabs, click the Exection tab.

  1. Type your Python code directly in the Execution tab.
  2. If encrypting your code is required, click the Encrypt button. and then provide a password.
  3. Optionally, if you already have a script, click the Folder button. and browse to the location of your script.


Is Python good for GIS?

Python is the scripting language of choice for ArcGIS Pro. It has its own module, ArcPy (where you’ll find the Python translation of all your favorite GIS functionalities). You can also run code directly in your project using Pro’s built-in Python window and immediately see the results on a map.
 

How do I add a Python script to ArcMap?

Right-click the toolbox or toolset in which you want to create the script tool, then click Add > Script. The illustration below shows the first panel of the Add Script dialog box. Enter a name for the script tool. Name is used when the script tool is run from Python.

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