The folded form combined multiple targets into one, which is not the
desired result.
'''
unfolded
l=['gcc5,', 'mingw5,'] e='gcc5,' p=('gcc5', '')
l=['gcc5,', 'mingw5,'] e='mingw5,' p=('mingw5', '')
folded
l=['gcc5,', 'mingw5,'] e='mingw5,' p=('gcc5', '', 'mingw5', '')
'''
import itertools
l = ['gcc5,', 'mingw5,']
print('unfolded')
for e in l:
for p in itertools.product(*[v.split('+') for v in e.split(',')]):
print("l=%r e=%r p=%r" % (l, e, p))
print('folded')
for p in itertools.product(*[
v.split('+') \
for e in l \
for v in e.split(',') \
]):
print("l=%r e=%r p=%r" % (l, e, p))
8f9b9d7504