Pandas Brain Teasers: Errata on page 21
selasley
Not sure if this is the correct place to report errata. On page 21, I believe “Integers don’t have a special value “empty” value, so the dtype of out is not float64.” should be “Integers don’t have a special value “empty” value, so the dtype of out is not int64.”
Popular Prag Prog topics
In Chapter 3, the source for index introduces Config on page 31, followed by more code including tests; Config isn’t introduced until pag...
New
Running the examples in chapter 5 c under pytest 5.4.1 causes an AttributeError: ‘module’ object has no attribute ‘config’.
In particula...
New
Python Testing With Pytest - Chapter 2, warnings for “unregistered custom marks”
While running the smoke tests in Chapter 2, I get these...
New
Title: Hands-On Rust (Chapter 11: prefab)
Just played a couple of amulet-less games. With a bit of debugging, I believe that your can_p...
New
I can’t setup the Rails source code. This happens in a working directory containing multiple (postgres) Rails apps.
With:
ruby-3.0.0
s...
New
#book-python-testing-with-pytest-second-edition
Hi. Thanks for writing the book. I am just learning so this might just of been an issue ...
New
Hi, I have just acquired Michael Fazio’s “Kotlin and Android Development” to learn about game programming for Android. I have a game in p...
New
When installing Cards as an editable package, I get the following error:
ERROR: File “setup.py” not found. Directory cannot be installe...
New
Hi, I’ve got a question about the implementation of PubSub when using a Phoenix.Socket.Transport behaviour rather than channels.
Before ...
New
@mfazio23
I’m following the indications of the book and arriver ad chapter 10, but the app cannot be compiled due to an error in the Bas...
New
Other popular topics
Hello Devtalk World!
Please let us know a little about who you are and where you’re from :nerd_face:
New
There’s a whole world of custom keycaps out there that I didn’t know existed!
Check out all of our Keycaps threads here:
https://forum....
New
Just done a fresh install of macOS Big Sur and on installing Erlang I am getting:
asdf install erlang 23.1.2
Configure failed.
checking ...
New
I am a Linux user since 2012, more or less, and I always use Ubuntu on my computers, and my last 2 laptops have been used Thinkpads, wher...
New
Small essay with thoughts on macOS vs. Linux:
I know @Exadra37 is just waiting around the corner to scream at me “I TOLD YOU SO!!!” but I...
New
If you are experiencing Rails console using 100% CPU on your dev machine, then updating your development and test gems might fix the issu...
New
Learn different ways of writing concurrent code in Elixir and increase your application's performance, without sacrificing scalability or...
New
Here’s the story how one of the world’s first production deployments of LiveView came to be - and how trying to improve it almost caused ...
New
Will Swifties’ war on AI fakes spark a deepfake porn reckoning?
New
This is cool!
DEEPSEEK-V3 ON M4 MAC: BLAZING FAST INFERENCE ON APPLE SILICON
We just witnessed something incredible: the largest open-s...
New
Latest in PragProg
Latest (all)
Categories:
Popular Portals
- /elixir
- /opensuse
- /rust
- /kotlin
- /ruby
- /erlang
- /python
- /clojure
- /react
- /quarkus
- /go
- /vapor
- /v
- /react-native
- /wasm
- /security
- /django
- /nodejs
- /centos
- /haskell
- /rails
- /fable
- /gleam
- /swift
- /js
- /deno
- /assemblyscript
- /tailwind
- /laravel
- /symfony
- /phoenix
- /crystal
- /typescript
- /debian
- /adonisjs
- /julia
- /arch-linux
- /svelte
- /spring
- /c-plus-plus
- /preact
- /flutter
- /actix
- /java
- /angular
- /ocaml
- /zig
- /kubuntu
- /scala
- /zotonic
- /vim
- /rocky
- /lisp
- /html
- /keyboards
- /emacs
- /nim
- /vuejs
- /nerves
- /elm
Devtalk Sponsors
Practical resources that improve the lives of professional developers.
We build trusted fault-tolerant systems that scale to billions of users.
Catch errors, track performance, monitor hosts and more.
Enabling companies to succeed by building software people love.
Courses that'll move you from confusion to "Aha, now I get it!"