# Python compare two lists of strings | Examples

Python doesn’t have a direct method to compare a list. But there are multiple ways to compare the two lists of strings in python.

The following methods to perform List comparison:

Note: The cmp() function doesn’t use in Python 3.x version.

## Python compares two lists of strings example

Simple example code with all possible ways.

### Use reduce() and map() functions

``````import functools

list1 = ['A', 'B', 'C']
list2 = ['A', 'D', 'E']

if functools.reduce(lambda x, y: x and y, map(lambda a, b: a == b, list1, list2), True):
print("Both List are same")
else:
print("Not same")
``````

Output:

### Python collection.counter() method

The counter() function counts the frequency of the items in a list and stores the data as a dictionary in the format <value>:<frequency>.

``````import collections

list1 = ['A', 'B', 'C']
list2 = ['A', 'D', 'E']

if collections.Counter(list1) == collections.Counter(list2):
print("Both List are same")
else:
print("Not the same")
``````

Output: Not the same

### Use sort() method and == operator to compare lists

The sorted list and the == operator are used to compare the list, element by element.

``````list1 = ['A', 'B', 'C']
list2 = ['A', 'C', 'B']

list1.sort()
list2.sort()

if list1 == list2:
print("Both List are the same")
else:
print("Not same")
``````

Output: Both List are the same

### Python set() method and == operator to compare two lists

The equal == operator is used for comparison of the data items of the list in an element-wise fashion.

``````list1 = ['A', 'B', 'C']
list2 = ['A', 'C', 'B']

s1 = set(list1)
s2 = set(list2)

if s1 == s2:
print("Both List are the same")
else:
print("Not same")
``````

Output: Both List are the same

### Use Custom List Comprehension to Compare Two Lists

If the string list same then the list has zero elements.

``````list1 = ['A', 'B', 'C']
list2 = ['A', 'C', 'B']

res = [x for x in list1 + list2 if x not in list1 or x not in list2]

print(res)
``````

Output: []

Do comment if you have any doubts or suggestions on this Python list topic code.

Note: IDE: PyCharm 2021.3.3 (Community Edition)

Windows 10

Python 3.10.1

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.

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