Python: Find the common values that appear in two given strings

Python String: Exercise-87 with Solution

Write a Python program find the common values that appear in two given strings.

Sample Solution:-

Python Code:

def intersection_of_two_string(str1, str2):
    result = ""
    for ch in str1:
        if ch in str2 and not ch in result:
            result += ch
    return result

str1 = 'Python3'
str2 = 'Python2.7'
print("Original strings:")
print("\nIntersection of two said String:") 
print(intersection_of_two_string(str1, str2))

Sample Output:

Original strings:

Intersection of two said String:


Flowchart: Find the common values that appear in two given strings.

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Python: Tips of the Day

Check if a given key already exists in a dictionary:

In is the intended way to test for the existence of a key in a dict.

d = {"key1": 10, "key2": 23}

if "key1" in d:
    print("this will execute")

if "nonexistent key" in d:
    print("this will not")

If you wanted a default, you can always use dict.get():

d = dict()

for i in range(100):
    key = i % 10
    d[key] = d.get(key, 0) + 1

and if you wanted to always ensure a default value for any key you can either use dict.setdefault() repeatedly or defaultdict from the collections module, like so:

from collections import defaultdict

d = defaultdict(int)

for i in range(100):
    d[i % 10] += 1

but in general, the in keyword is the best way to do it.

Ref: https://bit.ly/2XPMRyz