Running rubiks.py returns ImportError

[chaNcharge]

• ev3dev version: 4.4.68-20-ev3dev-ev3
• ev3dev-lang-python version: 3.4.2

I followed all the instructions on the readme file in the MindCub3r demo, however, when I run it, it returns:

Traceback (most recent call last): File "rubiks.py", line 6, in from rubikscolorresolver import RubiksColorSolverGeneric File "/usr/local/lib/python3.4/dist-packages/rubikscolorresolver/init.py", line 4, in from sklearn.cluster import KMeans ImportError: No module named 'sklearn'

I tried to install sklearn, numpy, and scipy via pip, but it hangs during installation. Is there something I'm missing?

[ddemidov]

Where does rubikscolorresolver package come from? Is it one by @dwalton76? I think sklearn module that it tries to import should come from http://scikit-learn.org, but I am not sure it works on the EV3.

[dwalton76]

yep that is one of mine, it lives at https://github.com/dwalton76/rubiks-color-resolver

@chaNcharge can you try

$ sudo apt-get install python3-pip
$ sudo python3 -m pip install numpy
$ sudo python3 -m pip install scikit-learn
$ sudo python3 -m pip install scipy
$ sudo python3 -m pip install git+https://github.com/dwalton76/rubiks-color-resolver.git

[dwalton76]

I thought about this some more, none of those libraries are needed until you are dealing with a cube that is 4x4x4 or larger so I changed the code to lazy load those. So @chaNcharge do sudo python3 -m pip install git+https://github.com/dwalton76/rubiks-color-resolver.git and then to test to make sure everything is working do

rubiks-color-resolver.py --rgb '{"1": [39, 71, 43], "2": [54, 90, 62], "3": [5, 16, 17], "4": [41, 74, 50], "5": [64, 103, 74], "6": [33, 17, 5], "7": [30, 53, 31], "8": [50, 86, 59], "9": [33, 17, 6], "10": [24, 9, 4], "11": [23, 11, 5], "12": [22, 12, 4], "13": [5, 18, 18], "14": [6, 19, 21], "15": [4, 18, 17], "16": [6, 18, 18], "17": [4, 17, 18], "18": [4, 15, 15], "19": [5, 14, 12], "20": [5, 17, 18], "21": [28, 35, 6], "22": [32, 18, 6], "23": [44, 22, 8], "24": [29, 38, 7], "25": [25, 15, 5], "26": [33, 16, 5], "27": [28, 35, 6], "28": [4, 23, 9], "29": [5, 31, 11], "30": [28, 15, 4], "31": [5, 30, 11], "32": [6, 37, 14], "33": [35, 18, 5], "34": [4, 27, 10], "35": [4, 32, 10], "36": [33, 19, 5], "37": [35, 65, 37], "38": [5, 29, 11], "39": [5, 24, 8], "40": [51, 86, 60], "41": [32, 14, 6], "42": [27, 11, 4], "43": [49, 83, 58], "44": [25, 11, 4], "45": [25, 12, 5], "46": [22, 30, 6], "47": [31, 40, 7], "48": [25, 11, 5], "49": [28, 38, 7], "50": [37, 45, 9], "51": [25, 11, 4], "52": [23, 32, 6], "53": [29, 38, 7], "54": [5, 31, 10]}'

You should see this at the end of the output

2017-09-05 08:00:04,267    INFO: Cube

           Gr Gr Bu
           Gr Gr OR
           Gr Gr OR
 Rd Rd Rd  Bu Bu Ye  Wh Wh OR  Gr Wh Wh
 Bu Bu Bu  OR OR Ye  Wh Wh OR  Gr Rd Rd
 Bu Bu Bu  OR OR Ye  Wh Wh OR  Gr Rd Rd
           Ye Ye Rd
           Ye Ye Rd
           Ye Ye Wh

2017-09-05 08:00:04,267    INFO: 
          01 02 03 
          04 05 06 
          07 08 09 

10 11 12  19 20 21  28 29 30  37 38 39 
13 14 15  22 23 24  31 32 33  40 41 42 
16 17 18  25 26 27  34 35 36  43 44 45 

          46 47 48 
          49 50 51 
          52 53 54 

UULUUFUUFRRFRRFRRFLLDFFDFFDDDBDDBDDRBBBLLLLLLURRUBBUBB

[chaNcharge]

Thanks a lot @dwalton76, it works without an issue now!