Hi everyone, welcome back to my blog where I share tips and tricks on Python programming. Today, I want to talk about a common error that you might encounter when working with sequences, such as lists, tuples, or strings. The error is: `typeerror: can't multiply sequence by non-int of type float`

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## What does this error mean and how can we fix it?

Let’s find out!

First of all, what is a sequence in Python?

A sequence is an ordered collection of items that can be accessed by index, such as `[1, 2, 3]`

or `"hello"`

. Sequences support some common operations, such as slicing, concatenation, and repetition. For example, we can slice a list to get a sublist, concatenate two strings to get a longer string or repeat a tuple to get a bigger tuple.

One of the operations that we can do with sequences is **multiplication**. Multiplication of a sequence by an integer `n`

means creating a new sequence that repeats the original sequence `n`

times. For example, `[1, 2] * 3`

returns `[1, 2, 1, 2, 1, 2]`

, and `"hi" * 2`

returns `"hihi"`

. This is useful when we want to create a sequence with a certain length or pattern.

However, what happens if we try to multiply a sequence by a non-integer, such as a float? For example, what if we write `[1, 2] * 2.5`

or `"hi" * 1.5`

? This is where the error occurs. Python does not know how to multiply a sequence by a fraction or a decimal number. It only accepts integers as the multiplier. Therefore, it raises a `typeerror: can't multiply sequence by non-int of type float.`

## How can we avoid this error?

There are two possible solutions:

- Convert the float to an integer before multiplying. For example,
`[1, 2] * int(2.5)`

or`"hi" * int(1.5)`

. This will truncate the decimal part and use the whole number as the multiplier. However, this might not be what we want if we need the exact number of repetitions. - Use a loop or a list comprehension to create the new sequence manually. For example,
`[x for x in [1, 2] for _ in range(2)]`

or`"".join(["hi" for _ in range(2)])`

. This will allow us to specify the exact number of repetitions for each item in the original sequence.

I hope this blog post helped you understand the `typeerror: can't multiply sequence by non-int of type float`

and how to fix it. If you have any questions or comments, please leave them below. Thanks for reading and happy coding!