How do I append one string to another in Python?

You can use the "+" operator to concatenate two strings in Python. Here's an example:

string1 = "Hello"
string2 = "world"
result = string1 + " " + string2
print(result)  # Output: "Hello world"

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You can also use the += operator to append one string to another:

string1 = "Hello"
string2 = "world"
string1 += " " + string2
print(string1)  # Output: "Hello world"

or the join() method of the first string, passing the second string as an argument:

string1 = "Hello"
string2 = "world"
result = " ".join([string1, string2])
print(result)  # Output: "Hello world"

Note that join() method expects a list of strings, so you have to pass a list containing the two strings you want to join.