Why Does My Python Code Produce an 'IndentationError: unindent does not match any outer indentation level'?

Indentation Irregularity: Understanding the "IndentationError"

When attempting to compile Python code, you may encounter the following error: "IndentationError: unindent does not match any outer indentation level." While you might assume that the indentation appears correct, this error suggests otherwise.

One potential culprit behind this error is a mix of spaces and tabs in the indentation. To resolve this, perform a search and replace operation within your code editor to uniformly convert all tabs into spaces.

Here's an example:

import sys

def Factorial(n):  # return factorial
    result = 1
    for i in range(1, n):
        result = result * i
    print("factorial is ", result)
    return result

print(Factorial(10))

By ensuring that every indentation level uses the same character (either spaces or tabs), you can eliminate this indentation error.

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