List integration as argument (beginner)
Question: I am writing a script in python, but I am a beginner (started yesterday).

Basically, I just create chunks that I fill with ~10 pictures, align them,
build the model, and build the texture. Now I have my chunks and I want to
align them...

From the [manual](http://downloads.agisoft.ru/pdf/photoscan_python_api.pdf):

> `PhotoScan.alignChunks(chunks, reference, method=’points’, accuracy=’high’,
> preselection=False)`
>
> Aligns speciﬁed set of chunks.
>
> **Parameters**
>
>   * chunks (list) – List of chunks to be aligned.
>   * reference (Chunk) – Chunk to be used as a reference.
>   * method (string) – Alignment method in [’points’, ‘markers’].
>   * accuracy (string) – Alignment accuracy in [’high’, ‘medium’, ‘low’].
>   * preselection (boolean) – Enables image pair preselection.
>

>
> Returns Success of operation.
>
> Return type `boolean`

I tried to align the chunks, but the script throws an error at line 26:

> TypeError: expected a list of chunks as an argument

Do you have any idea how I can make it work?

This is my current code:

    
    
    import PhotoScan
    doc = PhotoScan.app.document
    main_doc = PhotoScan.app.document
    chunk = PhotoScan.Chunk()
    proj = PhotoScan.GeoProjection()
    proj.init("EPSG::32641")
    gc = chunk.ground_control
    gc.projection = proj
    working_path = "x:\\New_agisoft\\ok\\Optical\\"
    for i in range (1,3):
        new_chunk = PhotoScan.Chunk()
        new_chunk.label = str(i)
        loop = i*10 
        loo = (i-1)*10
        doc.chunks.add(new_chunk)
        for j in range (loo,loop):
            file_path = working_path + str(j) + ".jpg"
            new_chunk.photos.add(file_path)
        gc = new_chunk.ground_control
        gc.loadExif()
        gc.apply()
        main_doc.active = len(main_doc.chunks) - 1
        doc.activeChunk.alignPhotos(accuracy="low", preselection="ground control")
        doc.activeChunk.buildModel(quality="lowest", object="height field", geometry="smooth", faces=50000)
        doc.activeChunk.buildTexture(mapping="generic", blending="average", width=2048, height=2048)
    PhotoScan.alignChunks(,1,method="points",accuracy='low', preselection=True)
    


Answer: 
    PhotoScan.alignChunks(,1,method="points",accuracy='low', preselection=True)
                          ^
    

Before the ',' you need the chunks!

