Help Removing Prefixes

Python Help
1

I can’t get my output to remove the ‘https://’ prefix. I’m using the latest version of Python on Mac in Sublime Text. Any ideas?

nostarch_url = 'https://nostarch.com'
nostarch_url.removeprefix('https://')
print(nostarch_url)
2

Hi,

I am using PyCharm and it works fine.

Try:

nostarch_url = 'https://nostarch.com'
result = nostarch_url.removeprefix('https://')
print(result)
1 Like
3

Just downloaded it. Consider me a convert. Thank you!

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4

It has nothing to do with your IDE, your computer, your operating system or your version of Python. (removeprefix is a relatively recent addition, but in older versions you would get an AttributeError instead.)

It has to do with the fact that no method that you call on a string, changes the string.

When you use these methods, you get a new string object which you have to use instead.

It’s the same with .removeprefix as with .replace or anything else - because the str type is immutable.

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5

Wish the textbook mentioned this. Thanks for clarifying! :pray: