I have a feeling this should be easily possible, but I fail to pass combinations of (lazy) lists to a delayed function:
def test(a,b):
return(str(a)+','+str(b))
a = [1,2] #not lazy for example
b = [3,4] #not lazy
c = dask.delayed(test)(a,b)
c = c.compute()
out:
'[1,2][3,4]'
desired output:
['1,3','1,4','2,3','2,4']
Also tried:
def test(c):
a = c[0]
b = c[1]
return(str(a)+','+str(b))
def combine_a_b(a,b):
return([(i,j) for i in a for j in b])
c = dask.delayed(combine_a_b)(a,b)
c = dask.delayed(test)(c)
c = c.compute()
out:
'(1,3)(1,4)'
What am I doing wrong here?
