Python---List-generated

#  list Generation #  list generation is list comprehensions, which is a very simple but powerful built-in import os#  build that can be used to create a list of Python  [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]l1 = list (range (1),  11)) print (' L1: ',  l1) #  generate  [1*1, 2*2, 3*3, ..., 10*10]# 1. Using loops to generate L2  = []for x in range (1, 11):     l2.append (x * x) Print (' L2: ',  l2) # 2. List Generation L2 = [x * x for x in range (1,  11)]print (' L2: ',  l2) # if condition filter only even squares l3 = [x * x for x in  range (1, 11)  if x % 2 == 0]print (' L3: ',  L3) #  uses a two-layer loop to generate the full array L4  = [m + n for m in  ' ABC '  for n in  ' XYZ ']print (' L4: ',  L4) #  lists all files and directory names under the current directory L5 = [d for d in os.listdir ('. ')] Print (' L5: ',  L5) #  uses two variables to generate LISTD = {' x ':  ' A ',  ' y ':  ' B ',  ' z ':  ' C '}l6 = [k +  ' = '  +  v for k, v in d.items ()]print (' L6: ',  l6) #  all the strings in a list into lowercase l =  [' Hello ',  ' World ',  ' IBM ',  ' Apple ']l7 = [s.lower ()  for s in  L]print (' L7: ',  L7)

Python---List-generated