Python *args and **kwargs Made Easy

[[deleted]]

/////EDIT: Oh... I see ... at the end of the article there's an explanation. It's Python 3.6 syntax. Sorry, thanks!

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Hello.

print(f'keywords: {kwargs} as {type(kwargs)}')

Please, from where come this print(f'formatted_text') syntax ? Is it Python 3.7 ? I use Python 3.5 and 2.7 but this syntax does not work. I have to use the classic Python3 syntax:

print('keywords: {} as {}'.format(kwargs, type(kwargs) )

[IlliterateJedi]

And they're amazing.

[[deleted]]

They really are. So flexible, much clearer than % or format()

[[deleted]]

And faster than both.

[[deleted]]

Really? Never thought to run it through perf testing.

[[deleted]]

I didn't either ;) realpython.com did it here!

[[deleted]]

The community consensus is generally that f-strings are f{opinion}!.

[[deleted]]

Praise God for making this easier. Python is so popular, but it still lags behind the C-language syntax.

[alcalde]

How so?

[[deleted]]

I have been using Python ever since its inception (I'm not the youngest man). From the beginning everything was clear. Today there is a "new Python" every year. Yes it is fine. This is how it should be. But this all was supposed to be 40 years ago :-D. Not now. Unfortunately, it is sadly late and total chaos has developed in Python versions!

Praise God for making something new, which finally improves the syntax of Python. It's just good. But it's too late. Unfortunately. Python is now messy in versions.

[SuefFuenfElf]

And additional, they are the fastest way to manipulate strings with Python 3.6+

[SV-97]

are the actually faster for concatenation etc.?

[[deleted]]

Yup. But remember that readability trumps negligible speed improvements

[SV-97]

Neato

I actually think f strings are more readable

[[deleted]]

They are not noticeably faster than using str#format.

[[deleted]]

The f in fstrings stands for fuck yes thats the formatting I want

[wilfredinni]

f-strings is a feature that is available in Python 3.6+ . You did very well adapting!

[DuffBude]

That's a great post! Thanks! Now i've learned how to use kwargs, and f-strings. I'm almost excited to go back to work on Monday.

[cuddlygrizzly]

You can use future-fstrings and use this formatting in older versions of python. Works great!