Seems SimpleCV is not running with Python3. Since Python2 is being phased out, I hope this gets fixed fairly soon.
This is what I get with sudo pip3 install SimpleCV:
Running setup.py install for SimpleCV
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/DrawingLayer.py", line 40
def __init__(self, (width, height)):
^
SyntaxError: invalid syntax
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/base.py", line 139
print 'unit test'
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/Color.py", line 213
print a
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/Features/BOFFeatureExtractor.py", line 68
print "Opening file: " + infile
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/Features/Blob.py", line 876
print self.mHullMask
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/Features/BlobMaker.py", line 97
except RuntimeError,e:
^
SyntaxError: invalid syntax
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/EXIF.py", line 1182
y = 0L
^
SyntaxError: invalid syntax
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/Font.py", line 68
print "Please pass a string"
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/MachineLearning/TreeClassifier.py", line 190
print "Opening file: " + infile
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/MachineLearning/SVMClassifier.py", line 181
print "Opening file: " + infile
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/MachineLearning/NaiveBayesClassifier.py", line 120
print "Opening file: " + infile
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/MachineLearning/KNNClassifier.py", line 153
print "Opening file: " + infile
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/Stream.py", line 62
except socket.error, e:
^
SyntaxError: invalid syntax
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/ImageClass.py", line 132
print "You need to install Beatutiul Soup to use this function"
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/Camera.py", line 363
print "coord: (" + str(d.mouseX) + "," + str(d.mouseY) + "), color: " + str(i.getPixel(d.mouseX,d.mouseY))
^
SyntaxError: invalid syntax
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/tests/test_display.py", line 80
print val
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/tests/YCrCbtests.py", line 6
print "Converted to YCrCb\n"
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/tests/vcamera_tests.py", line 19
print str(i) + ": " + str(props[i]) + "\n"
^
SyntaxError: invalid syntax
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/tests/test_cameras.py", line 17
print str(i) + ": " + str(props[i]) + "\n"
^
SyntaxError: invalid syntax
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/tests/tests.py", line 74
print val
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/tests/test_optional.py", line 91
print foundtext
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/tests/test_stereovision.py", line 54
print val
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/Shell/Shell.py", line 71
print "args", arg
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/Shell/Example.py", line 28
print "Available Examples:"
^
SyntaxError: Missing parentheses in call to 'print'
File "/usr/local/lib/python3.4/dist-packages/SimpleCV/Shell/Tutorial.py", line 35
print lb
^
SyntaxError: Missing parentheses in call to 'print'
programmin1
All 11 comments
If the missing parens are the only thing needed to migrate then this will be an easy fix. I will try to consult an expert on migration to see what other concerns there might be.
kuberlog
on 15 Jul 2016
To correct you on a few things: Python2, or more accurately, Python27 is not being phased out - there are some decent attempts from various sources to do so, but those who know what in the world are they doing, don't budge under the pressure. Python3X compared to Python27 is a tonne more confusing, weird, and frustrating, not something I'd recommend to programming newbies. Just go ahead and try Python27, and trust me when I say, that you'll love it (unless you got used to many Python3X-specific functions that is, and let me tell you, there aren't a lot of those)
Edit: This is a few years old statement, I'll keep it here, but it is not valid anymore.
golyalpha
on 8 Mar 2017
Support for Python 2.7 is ending in 2020, so I do think it's a valid concern. I feel like importing futures is a simple way to refactor the print statement errors. Does anyone know what else would need to change in order to enable forward compatibility?
mUtterberg
on 8 Sep 2018
@mUtterberg There's also the OpenCV2 to OpenCV3 upgrade the SimpleCV framework has to undergo.
golyalpha
on 9 Sep 2018
I'm new to Python and hoping to get started with some camera/vision coding on my Raspberry Pi. I've installed OpenCV 3.4.1 already (Eventually) but I think simplecv would be a better starting point.
But the simplecv website seems pretty out of date and as seen above, the install wont work properly with Python 3.
I've tried installing simplecv but when I try to run simplecv from the command line, I get all the same print errors as above. I have tried to fix these by adding the parentheses to the Python code but then I start getting various 'import' errors when I try to run simplecv.
I don't know how hard it would be to get simplecv updated to work on Python3, but I'd certainly appreciate trying it if/when it happens.
Below are the errors I'm getting now...
pi@raspberrypi:~ $ simplecv
RuntimeError: module compiled against API version 0xc but this version of numpy is 0xa
Traceback (most recent call last):
File "/usr/local/bin/simplecv", line 7, in
from SimpleCV.Shell import main
File "/usr/local/lib/python3.5/dist-packages/SimpleCV/__init__.py", line 3, in
from SimpleCV.base import *
File "/usr/local/lib/python3.5/dist-packages/SimpleCV/base.py", line 26, in
import scipy.ndimage as ndimage
File "/usr/local/lib/python3.5/dist-packages/scipy/ndimage/__init__.py", line 161, in
from .filters import *
File "/usr/local/lib/python3.5/dist-packages/scipy/ndimage/filters.py", line 37, in
from . import _nd_image
ImportError: numpy.core.multiarray failed to import
chrisgavinlondon
on 18 Sep 2018
@chrisgavinlondon, Sight Machine does seem to have abandoned this library, but there are numerous forks of it. I ended up forking it and have changed it to the point that I can install and run it on my Raspberry Pi, which defaults to Python 2.7 . The bugs from the 2.7 perspective were SUPER easy fixes once I was running my fork's version. I'm working on getting it up to a modern version of Python, but I'm sure others have been working on their own forks much longer than I have! At this point, we may be better off picking someone's solid fork and taking our SimpleCV party there.
But who knows?? Maybe @andrewbaldock @bremac @demaagdk @doclrogers @idfarmer @mechiris @oostendo @struckmannk or @xamox will see one of these threads and decide to loop people in for help! Maintaining a library, especially one this substantial, is a lot of work.
mUtterberg
on 18 Sep 2018
Hi @mUtterberg ... my fork attempted to move SimpleCV from Python2 to Python3. I fixed most of the issues. The main blocker currently is the internal data handling. SimpleCV uses a 3 channel (RGB) iplimage internally as a default, but iplimage is deprecated. It is recommended to use numpy.ndarray instead, but I hadn't found the time to port any code. I am willing to help out if you (or anyone else) has questions.
tpltnt
on 20 Sep 2018
Hi @mUtterberg ... my fork attempted to move SimpleCV from Python2 to Python3. I fixed most of the issues. The main blocker currently is the internal data handling. SimpleCV uses a 3 channel (RGB) iplimage internally as a default, but iplimage is deprecated. It is recommended to use numpy.ndarray instead, but I hadn't found the time to port any code. I am willing to help out if you (or anyone else) has questions.
Hi @mUtterberg I just wanna use SimpleCV to find a circle, do you thing with you fork I can do it? Or is it still not ready? Thanks
jairoareyes
on 18 Feb 2019
+1
bartmika
on 26 May 2019
Python 2 is officially sunset. Is there any plans to make simplecv python 3 compatible? It's a cool and simple to understand package. Thanks.
nelsonlim
on 15 Jul 2020
@jairoareyes I ended up using OpenCV itself, as recent releases of the python api are much more intuitive and more or less negate the need for a third-party api.
mUtterberg
on 15 Jul 2020
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Most helpful comment
Hi @mUtterberg ... my fork attempted to move SimpleCV from Python2 to Python3. I fixed most of the issues. The main blocker currently is the internal data handling. SimpleCV uses a 3 channel (RGB) iplimage internally as a default, but iplimage is deprecated. It is recommended to use numpy.ndarray instead, but I hadn't found the time to port any code. I am willing to help out if you (or anyone else) has questions.