String repetition is the process of repeating the contents of a string multiple times.

Python uses the * operator to repeat a string. The operator multiplies the string by an integer, producing a new string that contains the original string repeated the specified number of times.

String repetition is useful for creating separators, decorative patterns, repeated messages, padding, and simple text formatting.

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Syntax #

string_name * number

Components #

Component	Description
string_name	The string to be repeated.
*	Repetition operator.
number	Number of times the string is repeated. Must be an integer.

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Example 1: Repeating a String Three Times #

main.py

text = "Hi"

print(text * 3)

Output #

HiHiHi

Explanation #

• The string "Hi" is repeated three times.
• Python joins all repetitions into one new string.
• The original string remains unchanged.

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Example 2: Repeating a Character #

main.py

symbol = "*"

print(symbol * 10)

Output #

**********

Explanation #

• The character * is repeated ten times.
• This is commonly used to create separators or borders.

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Example 3: Repeating a Word with Spaces #

main.py

word = "Python "

print(word * 4)

Output #

Python Python Python Python

Explanation #

• The space is part of the string.
• Therefore, each repetition includes the trailing space.
• The words appear separated automatically.

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Example 4: Repeating an Empty String #

main.py

text = ""

print(text * 5)

Output #

Explanation #

• An empty string contains no characters.
• Repeating it any number of times still produces an empty string.

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Example 5: Using a Variable as the Repetition Count #

main.py

message = "Welcome! "
count = 3

print(message * count)

Output #

Welcome! Welcome! Welcome!

Explanation #

• The repetition count can be stored in a variable.
• Python repeats the string according to the variable’s value.

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Example 6: User Input #

main.py

word = input("Enter a word: ")

print(word * 2)

Sample Input #

Hello

Output #

HelloHello

Explanation #

• The user enters a string.
• The string is repeated twice.
• No space is added automatically.

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Example 7: Repeating a Numeric String #

main.py

number = "123"

print(number * 3)

Output #

123123123

Explanation #

• "123" is a string, not an integer.
• Python repeats the characters instead of performing multiplication.

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Example 8: Repeating Zero Times #

main.py

text = "Python"

print(text * 0)

Output #

Explanation #

• Repeating a string zero times produces an empty string.
• No error occurs.

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Example 9: Building a Divider Line #

main.py

divider = "-"

print(divider * 20)

Output #

--------------------

Explanation #

• The dash character is repeated twenty times.
• This technique is commonly used to create divider lines.

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Example 10: Checking the Result Type #

main.py

text = "Hi"

result = text * 5

print(result)
print(type(result))

Output #

HiHiHiHiHi
<class 'str'>

Explanation #

• Repetition creates a new string.
• The resulting object is still of type str.

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Common Mistakes #

1. Using a Floating-Point Number #

Incorrect

text = "Python"

print(text * 2.5)

Output #

TypeError: can't multiply sequence by non-int of type 'float'

Reason

The repetition count must be an integer.

Correct

print(text * 2)

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2. Expecting Spaces to Be Added Automatically #

Incorrect

text = "Hi"

print(text * 3)

Incorrect Expectation #

Hi Hi Hi

Actual Output #

HiHiHi

Reason

Python repeats the string exactly as written.

Correct

text = "Hi "

print(text * 3)

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3. Using a Negative Repetition Count #

Incorrect

text = "Python"

print(text * -2)

Incorrect Expectation #

PythonPython

Actual Output #

Reason

A negative repetition count returns an empty string.

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4. Confusing String Repetition with Numeric Multiplication #

Incorrect

print("10" * 3)

Incorrect Expectation #

30

Actual Output #

101010

Reason

"10" is a string.
The * operator repeats the string instead of multiplying numbers.

Correct

print(int("10") * 3)

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Best Practices #

• Use repetition to create separators and decorative text.
• Remember that spaces are repeated if they are part of the string.
• Use only integer values as the repetition count.
• Convert numeric strings to integers if arithmetic multiplication is required.
• Store the repeated string in a variable if it will be used multiple times.

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Key Points to Remember #

• The * operator repeats a string.
• The repetition count must be an integer.
• Repeating a string zero or a negative number of times returns an empty string.
• Python repeats the string exactly as written.
• String repetition creates a new string.
• The original string remains unchanged.
• The result of string repetition is always of type str.