Futurology Today
  • Communities
  • Create Post
  • heart
    Support Lemmy
  • search
    Search
  • Login
  • Sign Up
hairinmybellybutt@lemmy.world to Programmer Humor@lemmy.mlEnglish · 2 年前

would you write web app with this?

lemmy.world

message-square
55
link
fedilink
257

would you write web app with this?

lemmy.world

hairinmybellybutt@lemmy.world to Programmer Humor@lemmy.mlEnglish · 2 年前
message-square
55
link
fedilink
  • Gebruikersnaam@lemmy.ml
    link
    fedilink
    arrow-up
    11
    ·
    2 年前

    Yes, it has no implicit conversions like JS or R. It does, however, allow you to not specify the type of a variable and even change it without complaining. Even if you add types these are only hints that won’t generate errors unless you use external type checking (e.g. mypy).

    • tryptaminev 🇵🇸 🇺🇦 🇪🇺@feddit.de
      link
      fedilink
      arrow-up
      9
      ·
      2 年前

      example:

      i = 5.0//2

      list[i]

      throws an error because i is double and the list-index expects an integer.

      so for it to work the code needs to look like this:

      i = int(5.0//2)

      list[i]

      meanwhile this works:

      i=5

      i= ‘abcde’

      • Chrobin@discuss.tchncs.de
        link
        fedilink
        arrow-up
        2
        ·
        2 年前

        Isn’t // integer division?

        • Gebruikersnaam@lemmy.ml
          link
          fedilink
          arrow-up
          3
          ·
          2 年前

          It is but if you start with a float you get a float back.

          • Chrobin@discuss.tchncs.de
            link
            fedilink
            arrow-up
            2
            ·
            2 年前

            You’re right, I did not know that. Thanks!

            • Gebruikersnaam@lemmy.ml
              link
              fedilink
              arrow-up
              1
              ·
              2 年前

              Was really surprised by this too, because iirc Python 2 did not do this.

      • dzervas@lemmy.world
        link
        fedilink
        arrow-up
        1
        ·
        2 年前

        you can do i: int to make this error out

        • Gebruikersnaam@lemmy.ml
          link
          fedilink
          arrow-up
          6
          ·
          2 年前

          No, type hints are not enforced.

          • dzervas@lemmy.world
            link
            fedilink
            arrow-up
            1
            ·
            2 年前

            damn

Programmer Humor@lemmy.ml

programmerhumor@lemmy.ml

Subscribe from Remote Instance

Create a post
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !programmerhumor@lemmy.ml

Post funny things about programming here! (Or just rant about your favourite programming language.)

Rules:

  • Posts must be relevant to programming, programmers, or computer science.
  • No NSFW content.
  • Jokes must be in good taste. No hate speech, bigotry, etc.
Visibility: Public
globe

This community can be federated to other instances and be posted/commented in by their users.

  • 310 users / day
  • 766 users / week
  • 2.11K users / month
  • 8.2K users / 6 months
  • 9 local subscribers
  • 38.7K subscribers
  • 1.66K Posts
  • 24.7K Comments
  • Modlog
  • mods:
  • AgreeableLandscape@lemmy.ml
  • cat_programmer@lemmy.ml
  • BE: 0.19.11
  • Modlog
  • Legal
  • Instances
  • Docs
  • Code
  • join-lemmy.org