[Python-Dev] f-strings (original) (raw)

Wagner Herculano wagherculano at hotmail.com
Fri Dec 15 20:08:49 EST 2017

Hi, Thank you all for your time. In fact I'm really a newbie and I need to study so hard (including English) to become someone like you all. I don't know if is possible, but I need to try. Once again, thank you all for your time and I'm sorry if I'm bother both of you.

Kind regards, Wagner Herculano.

From: Chris Barker - NOAA Federal <chris.barker at noaa.gov> Sent: Friday, December 15, 2017 2:49:08 PM To: Mariatta Wijaya Cc: Wagner Herculano; Python Dev Subject: Re: [Python-Dev] f-strings

That's covered under "format specifiers" I think. The PEP mentions this: https://www.python.org/dev/peps/pep-0498/#format-specifiers

I can see how a newbie might not realize that that means that f-strings use the same formatting language as the .format() method, and or where to find documentation for it.

So somewhere in the docs making that really clear, with a link to the formatting spec documentation would be good.

Not sure where though — a PEP is not designed to be user documentation.

-CHB

That specific example is not mentioned in the docs, but there other examples of using format specifiers with f-strings. https://docs.python.org/3/reference/lexical_analysis.html#formatted-string-literals

On Dec 15, 2017 7:39 AM, "Wagner Herculano" <wagherculano at hotmail.com<mailto:wagherculano at hotmail.com>> wrote: Good evening, I'm Wagner Herculano from Brazil. I was trying to do a table exercise with number 5 and tried formatting spaces and did not find it in PEP 498 documentation. Finally I found a way, if possible, include this example in the documentation please.

Below is my script with the desired formatting about table of 5.

n = 5 for i in range(1,11): print(f'{n} x {i:>2} = {n*i:>2}')

Result 5 x 1 = 5 5 x 2 = 10 5 x 3 = 15 5 x 4 = 20 5 x 5 = 25 5 x 6 = 30 5 x 7 = 35 5 x 8 = 40 5 x 9 = 45 5 x 10 = 50

Sorry my English, I needed to use Google Translate

Best Regards, Wagner Herculano

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