List comprehension

listComprehension.py

## This is the same as
arr = ['test ', 'this', ' thing ']
[x.trim() for x in arr]

## This
vals = []
for x in arr
	vals.append(x.trim())
return vals


## This is the same as
[int(t) if t.isdigit() else t for t in re.split(r'(\d+)', key)]

## This
if t.isDigit():
	return [int(t)]
else:
	vals = []
	for t in re.split(r'(\d+)', key)
		vals.append(t)
	return vals