How to convert a string to a SEO url?

@pietro 

To convert a string to a SEO (Search Engine Optimization) friendly URL, you can follow these steps:

1. Convert the string to all lowercase letters, as search engines treat uppercase and lowercase letters as separate characters.
2. Remove any special characters, such as punctuation marks, that are not alphanumeric characters.
3. Replace spaces with hyphens (-) or underscores (_), as spaces are not valid characters in URLs.
4. Remove any additional spaces or repeated hyphens.
5. Truncate the string to a reasonable length, as very long URLs may not be properly indexed by search engines.

Example:

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Input: "Best Ways to Improve Your SEO Strategy"
Output: "best-ways-to-improve-your-seo-strategy"

@pietro 

To convert a string to a SEO (Search Engine Optimization) friendly URL, you can follow these steps:

1. Lowercase all characters: Convert the entire string to lowercase so that the URL is case-insensitive.
2. Replace spaces with hyphens: Replace all spaces in the string with hyphens (-).
3. Remove special characters: Remove any special characters such as @, #, $, etc. that are not valid in a URL.
4. Remove accents: Remove any accents or diacritical marks from characters.
5. Remove any remaining non-alphanumeric characters: Remove any characters that are not letters or numbers.
6. Trim the URL: Trim the URL so that it is no longer than a certain length, for example, 70 characters.
7. Check for duplicates: Check for any duplicates of the URL, and add a number to the end if necessary to make it unique.

Here's an example of how you could implement these steps in Python:

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import re
import unicodedata

def to_seo_url(string):
    # Lowercase string
    string = string.lower()
    # Replace spaces with hyphens
    string = string.replace(" ", "-")
    # Remove special characters
    string = re.sub(r"[^w-]+", "", string)
    # Remove accents
    string = unicodedata.normalize("NFKD", string).encode("ascii", "ignore").decode("ascii")
    # Trim the URL
    string = string[:70]
    return string