QGIS Python - Use Processing Tools in a Python Script

This QGIS video tutorial will teach you how to combine the power of the QGIS processing toolbox with the ease of Python automation. We use the buffer tool as an example of how to write a Python script that can run tools from the QGIS processing toolbox.

[JohnKessel-cn]

This is an older video, but it still applies. I was able to use these tips to add some additional housekeeping code to a script that I had developed but could easily get to run the housekeeping items that I didn't want to run manually. Really helpful for beginners like me!

[elzbietazielinska]

Thank you very much! I have been struggling to write a script in my work (I am not even a programmer but I try things) and I wasn`t aware that I can combine python and QGIS tools so easily! This saves me a lot of time.

[umee]

Thanks a lot guy, I have got a problem about Fixing Geometry and I use this clip to guide me. And it works.

[buannelgeosolution]

Please Answer: How to generate intermediate temporary layer in processing. Use this temporary layer in another process in the same script.

[AnimationLook]

Can you show the use of the editor and write your own plugin?

[snehakawale]

how to find the crossover area between the different shapefiles?

[selvalakshmi]

I have a processing script where I need to polygonize multiple rasters the code runs without an error but the results are not shown in proper location even if the output directory was defined. The log message depict that the result is stored in an local/ temp folder in an inappropriate name. Someone pls help me to resolve it

[aaronschwartz]

why do I only get syntax errors when doing exactly what he does here?

[joaofolgado]

Hi there,
Do you know how to use multiprocessing in qgis.
When i use multiprocessing in plugin they start a new instance of the aplication and give me a error.
I search for some information but i can't fine.
Can you help me ?
thank you very much

[poojarh]

i am not getting output file. it is showing empty.

[alessandrofanfani]

Thank you very much it is very important for me

[gtosevram]

Why should one do this instead of pushing a button?? (not joking or trying to be provocative)