Add one Python string to another

String concatenation in Python combines two or more strings into a single string. Python provides several methods to add strings together, with the + operator and join() method being the most common approaches.

Using the + Operator

The + operator concatenates strings by combining them sequentially. This is the most straightforward method for joining strings ?

first_string = "What a beautiful "
second_string = "flower"

print("Given string s1:", first_string)
print("Given string s2:", second_string)

# Using + operator
result = first_string + second_string
print("Result after adding strings:", result)

Given string s1: What a beautiful 
Given string s2: flower
Result after adding strings: What a beautiful flower

Adding Numeric Strings

When working with numeric strings, the + operator performs concatenation, not arithmetic addition ?

num_str1 = '54'
num_str2 = '02'

print("Given string s1:", num_str1)
print("Given string s2:", num_str2)

result = num_str1 + num_str2
print("Result after adding numeric strings:", result)

Given string s1: 54
Given string s2: 02
Result after adding numeric strings: 5402

Using the join() Method

The join() method is more efficient for concatenating multiple strings. It takes an iterable of strings and joins them with a specified separator ?

first_string = "What a beautiful "
second_string = "flower"

print("Given string s1:", first_string)
print("Given string s2:", second_string)

# Using join() with empty separator
result = "".join([first_string, second_string])
print("Result using join():", result)

Given string s1: What a beautiful 
Given string s2: flower
Result using join(): What a beautiful flower

Join() with Multiple Strings

The join() method is particularly useful when concatenating many strings ?

words = ["Python", "is", "awesome"]
sentence = " ".join(words)
print("Joined sentence:", sentence)

# Join without separator
numbers = ['1', '2', '3', '4']
combined = "".join(numbers)
print("Combined numbers:", combined)

Joined sentence: Python is awesome
Combined numbers: 1234

Comparison

Conclusion

Use the + operator for simple concatenation of 2-3 strings. For joining multiple strings or when performance matters, use the join() method as it's more memory efficient.