Appending a character multiple times to a string in Python can be easily achieved by using string multiplication and concatenation:
>>> 'a'*7
'aaaaaaa'
Here’s how you can do it:
Python allows you to "multiply" a string by an integer, which duplicates the string that many times.
original_str = "hello"
char_to_append = 'a'
times = 3 # Number of times to append
# Append character 'a' three times to the string "hello"
new_str = original_str + (char_to_append * times)
print(new_str) # Output: helloaaa
char_to_append * times
creates a string where the character char_to_append
is repeated times
times.original_str + ...
concatenates the original string with the new repeated characters.While not as efficient for this specific use case, you can also append characters using a loop, which might be more intuitive if coming from other programming languages.
original_str = "hello"
char_to_append = 'a'
times = 3
# Start with the original string
new_str = original_str
# Loop to append the character 'a' three times
for _ in range(times):
new_str += char_to_append
print(new_str) # Output: helloaaa
This method involves creating a list of the character repeated times
times and then joining it with the original string. It's more Pythonic and can be useful in more complex string operations.
original_str = "hello"
char_to_append = 'a'
times = 3
# Use join on an empty string with a list comprehension for the repeated character
new_str = original_str + ''.join([char_to_append for _ in range(times)])
print(new_str) # Output: helloaaa
String multiplication is generally the best option for simple character repetitions due to its simplicity and efficiency.
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