python - print([[i+j for i in "abc"] for j in "def"]) -

i'm new python.

i stumped upon 1 of comprehension

print([[i+j in "abc"] j in "def"])

could please me convert comprehension in loop?

i'm not getting desired result loop:

list = [] list2 = []  j in 'def':     in 'abc':         list.append(i+j)     list2 = list print (list)

the above try loop. i' missing something. below should desired result in loop want.

([[‘ad’, ‘bd’, ‘cd’], [‘ae’, ‘be’, ‘ce’], [‘af’, ‘bf’, ‘cf’]])

which believe matrice.

thanks in advance.

the easiest thing unravel comprehension take 1 comprehension @ time , write that loop. so:

[[i+j in "abc"] j in "def"]

becomes:

outer_list = [] j in "def":     outer_list.append([i + j in "abc"])

alright, cool. we've gotten rid of outer comprehension can unravel inner comprehension next:

outer_list = [] j in "def":     inner_list = []     in "abc":         inner_list.append(i + j)     outer_list.append(inner_list)

Today