
kamalfarahani
Python Testing with pytest, Second Edition: Typing mistake (page 13)
In the Card
class definition, the type hints for the summary
, owner
, and id
attributes are currently specified as str
, str
, and int
respectively, with default values of None
.
@dataclass
class Card:
owner: str = None
summary: str = None
state: str = "todo"
id: int = field(default=None, compare=False)
This is a minor mistake. To accurately reflect that these fields are optional and can be None
, they should be defined using Optional
from the typing
module. The corrected type hints are:
-
owner
should beOptional[str]
-
summary
should beOptional[str]
-
id
should beOptional[int]
The corrected class definition would appear as follows (assuming from typing import Optional
is present):
from typing import Optional
@dataclass
class Card:
owner: Optional[str] = None
summary: Optional[str] = None
state: str = "todo"
id: Optional[int] = field(default=None, compare=False)
Popular Pragmatic Bookshelf topics

page 20: … protoc command…
I had to additionally run the following go get commands in order to be able to compile protobuf code using go...
New

Some minor things in the paper edition that says “3 2020” on the title page verso, not mentioned in the book’s errata online:
p. 186 But...
New

page 37
ANTLRInputStream input = new ANTLRInputStream(is);
as of ANTLR 4 .8 should be:
CharStream stream = CharStreams.fromStream(i...
New

Working through the steps (checking that the Info,plist matches exactly), run the demo game and what appears is grey but does not fill th...
New

Title: Hands-On Rust (Chap 8 (Adding a Heads Up Display)
It looks like
.with_simple_console_no_bg(SCREEN_WIDTH*2, SCREEN_HEIGHT*2...
New

When trying to generate the protobuf .go file, I receive this error:
Unknown flag: --go_opt
libprotoc 3.12.3
MacOS 11.3.1
Googling ...
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

I’m not quite sure what’s going on here, but I’m unable to have to containers successfully complete the Readiness/Liveness checks. I’m im...
New

I am using Android Studio Chipmunk | 2021.2.1 Patch 2
Build #AI-212.5712.43.2112.8815526, built on July 10, 2022
Runtime version: 11.0....
New

@mfazio23
I’ve applied the changes from Chapter 5 of the book and everything builds correctly and runs. But, when I try to start a game,...
New
Other popular topics

New
New

Think Again 50% Off Sale »
The theme of this sale is new perspectives on familiar topics.
Enter coupon code ThinkAgain2021 at checkout t...
New

API 4
Path:
/user/following/
Method:
GET
Description:
Returns the list of all names of people whom the user follows
Response
[
{ ...
New

Hi folks,
I don’t know if I saw this here but, here’s a new programming language, called Roc
Reminds me a bit of Elm and thus Haskell. ...
New

Rails 7 completely redefines what it means to produce fantastic user experiences and provides a way to achieve all the benefits of single...
New

Author Spotlight
Mike Riley
@mriley
This month, we turn the spotlight on Mike Riley, author of Portable Python Projects. Mike’s book ...
New
New

Author Spotlight:
Karl Stolley
@karlstolley
Logic! Rhetoric! Prag! Wow, what a combination. In this spotlight, we sit down with Karl ...
New

Fight complexity and reclaim the original spirit of agility by learning to simplify how you develop software. The result: a more humane a...
New
Categories:
Sub Categories:
Popular Portals
- /elixir
- /rust
- /wasm
- /ruby
- /erlang
- /phoenix
- /keyboards
- /rails
- /js
- /python
- /security
- /go
- /swift
- /vim
- /clojure
- /emacs
- /haskell
- /java
- /onivim
- /typescript
- /svelte
- /crystal
- /kotlin
- /c-plus-plus
- /tailwind
- /gleam
- /react
- /ocaml
- /elm
- /flutter
- /vscode
- /ash
- /html
- /opensuse
- /centos
- /php
- /deepseek
- /zig
- /scala
- /sublime-text
- /textmate
- /lisp
- /nixos
- /debian
- /react-native
- /agda
- /kubuntu
- /arch-linux
- /revery
- /ubuntu
- /django
- /manjaro
- /spring
- /nodejs
- /diversity
- /lua
- /julia
- /c
- /slackware
- /markdown