Example :

  Input:  lst = [[`Machine`,` London`, `Canada`,` France`], [ `Spain`,` Munich`], [`Australia`,` Mandi`]]  Output:  flist = [[`Canada`,` France`, `London`,` Machine`], [ `Munich`,` Spain`], [`Australia`,` Mandi`]] 

There are several ways to sort each list alphabetically.

Method # 1: Map Usage

# Python code to sort all sublists # in this list of strings   # Initialization list Input = [[ `Machine` , ` London` , `Canada` , ` France` , ` Lanka` ], [ ` Spain` , `Munich` ],   [ `Australia` , ` Mandi` ]]   # Using the map for sorting Output = list ( map ( sorted , Input ))   # Printout print (Output)

Exit:

[[`Canada `,` France `,` Lanka `,` London `,` Machine `], [` Munich `,` Spain `], [` Australia `,` Mandi `]]

Method # 2: Using lambda and sorting

# Python code to sort all sublists # in this list of strings   # Initialization list Input = [[ `Machine` , ` London` , `Canada` , `France` , `Lanka` ],   [ `Spain` , ` Munich` ], [ ` Australia` , `Mandi` ]]   # using lambda and sorted Output = [ sorted (x, key = lambda x: x [ 0 ]) for x in Input ]   # Printout print (Output)

Exit:

[ [`Canada`, `France`, `London`, `Lanka`, `Machine`], [`Munich`, `Spain`], [`Australia`, `Mandi`]]

Method # 3: Using iteration and sorting

# Python code to sort all sublists # in this list of lines    # Initialization list Input = [[ `Machine` , `London` , ` Canada` , ` France` , `Lanka` ], [ `Spain` , ` Munich` ] , [ `Australia` , `Mandi` ]]   # with Sublist editing for sublist in Input : sublist.sort ()   # Output to print print ( Input )

Output:

[[`Canada`, `France`, `Lanka`, `London`, `Machine`], [`Munich`, `Spain`], [`Australia`, `Mandi `]]