pyShearLab does not work with Python 2.X

[stefanloock]

Due to a bug in SLgetWedgeBandpassAndLowpassFilters2D located in the pySLUtilities.py, pyShearLab currently does not work with Python versions below 3.0:

File "pySLUtilities.py", line 543, in SLgetWedgeBandpassAndLowpassFilters2D filterLow2[-1-shearLevel].shape = (1, len(filterLow2[-1-shearLevel])) ValueError: cannot reshape array of size 9 into shape (1,1)

[identidata]

this happens because in python 2 you need to add a dot to the divisor to get a float number.

In python 3.X

>>> 3 / 2
1.5

in python 2.x

>>> 3/2
1

to get a float quotient in python 2.x you need to do

>>> 3/2.
1.5

so change line 154 in pyShearLab2D.py, function SLgetShearletSystem2D from

shearLevels = np.ceil(np.arange(1,nScales+1)/2).astype(int)

to

shearLevels = np.ceil(np.arange(1,nScales+1)/2.).astype(int) 

and build again