Can't seem to import pyqt_fit on spyder - python-2.7

Question

I have been using Atom.io to run my python codes but recently I was not able to run codes that require pyqt_fit. I could not find any packages on Atom that allow me to run pyqt. As such, I downloaded anaconda and spyder. I used homebrew to intall qt, sip, and pyqt.
In spyder, I tried to do the following:
import pyqt_fit
from pyqt_fit import plot_fit
import numpy as np
from matplotlib import pylab
x = np.arange(0,3,0.01)
y = 2*x + 4*x**2 + np.random.randn(*x.shape)
def fct(params, x):
(a0, a1, a2) = params
return a0 + a1*x + a2*x*x
fit = pyqt_fit.CurveFitting(x, y, (0,1,0), fct)
result = plot_fit.fit_evaluation(fit, x, y)
print(fit(x)) # Display the estimated values
plot_fit.plot1d(result)
pylab.show()
but I received the following errors:
runfile('/Users/Griffin/Atom/FYP Bifurcations/untitled1.py', wdir='/Users/Griffin/Atom/FYP Bifurcations')
Reloaded modules: pyqt_fit.utils, pyqt_fit.compat
Traceback (most recent call last):
File "<ipython-input-24-effdfa66efe9>", line 1, in <module>
runfile('/Users/Griffin/Atom/FYP Bifurcations/untitled1.py', wdir='/Users/Griffin/Atom/FYP Bifurcations')
File "/anaconda/lib/python2.7/site-packages/spyder/utils/site/sitecustomize.py", line 710, in runfile
execfile(filename, namespace)
File "/anaconda/lib/python2.7/site-packages/spyder/utils/site/sitecustomize.py", line 93, in execfile
builtins.execfile(filename, *where)
File "/Users/Griffin/Atom/FYP Bifurcations/untitled1.py", line 9, in <module>
import pyqt_fit
File "pyqt_fit/__init__.py", line 14, in <module>
from . import functions, residuals
File "pyqt_fit/functions/__init__.py", line 6, in <module>
from .. import loader
File "pyqt_fit/loader.py", line 3, in <module>
from path import path
ImportError: cannot import name path
Does it have anything to do with where I place the pyqt_fit folders?
Thanks in advance!

Answer 1

According to the PyQt-Fit requirements file, the path.py package is a dependency. However, the PyQt-Fit package has not been updated since 2015-02-11, and there have been incompatible changes made to path.py which it has not tracked. The specific error in the question is caused by this change, which removed path as an alias for the Path class.
To fix this, you could try monkey-patching path.py like this:
# before pyqt_fit is first imported
import path
path.path = path.Path
import pyqt_fit
from pyqt_fit import plot_fit
Alternatively, you could downgrade path.py to any version >= 2.4 and < 8.0.