PragProg Customers

Python Testing with pytest, Second Edition: error when installing editable package (page 178)

brunogirin

brunogirin

Python Testing with pytest, Second Edition: error when installing editable package (page 178)

When installing Cards as an editable package, I get the following error:

ERROR: File “setup.py” not found. Directory cannot be installed in editable mode: /home/bruno/Projects/sandbox/pytestboo
k/ch13/cards_proj
(A “pyproject.toml” file was found, but editable mode currently requires a setup.py based build.)

This is probably due to the fact that the default python on my machine is 3.8 and that’s the version used in the venv. If this only works from v3.9 or 3.10, it would be good to mention it here and maybe offer some other options to do this.

1 comment
#errata/book-python-testing-with-pytest-second-edition
0 1714 1

Popular Prag Prog topics Top

duke_meister
PragProg Customers

The Ray Tracer Challenge - where are the errata?
As per the title, thanks.
/book-the-ray-tracer-challenge
6 1668 4
New
cro
PragProg Customers

Programming Phoenix LiveView: P27, live_path confusion
I am working on the “Your Turn” for chapter one and building out the restart button talked about on page 27. It recommends looking into ...
#question/book-programming-phoenix-liveview
7 3467 14
New
gilesdotcodes
PragProg Customers

Modern CSS with Tailwind: setting up Rails app
In case this helps anyone, I’ve had issues setting up the rails source code. Here were the solutions: In Gemfile, change gem 'rails' t...
#errata/book-modern-css-with-tailwind
3 1273 2
New
curtosis
PragProg Customers

Build a Weather Station with Elixir and Nerves: 'mix deps.get' does not work if user has not created a keyfile (page 16)
Running mix deps.get in the sensor_hub directory fails with the following error: ** (Mix) No SSH public keys found in ~/.ssh. An ssh aut...
#errata/book-build-a-weather-station-with-elixir-and-nerves
2 1433 3
New
jskubick
PragProg Customers

Kotlin and Android Development featuring Jetpack: android:tint vs app:tint (chapter 7, p186)
I found an issue in Chapter 7 regarding android:backgroundTint vs app:backgroundTint. How to replicate: load chapter-7 from zipfile i...
#errata/book-kotlin-and-android-development-featuring-jetpack
0 3442 3
New
dsmith42
PragProg Customers

iOS Unit Testing by Example: 54 Don't seem to be getting the print out on tests (Xcode 13.2)
Hey there, I’m enjoying this book and have learned a few things alredayd. However, in Chapter 4 I believe we are meant to see the “>...
#question/book-ios-unit-testing-by-example
0 1893 3
New
hazardco
PragProg Customers

Agile Web Development with Rails 7: Example code does not work delete method (page 78)
On page 78 the following code appears: <%= link_to ‘Destroy’, product, class: ‘hover:underline’, method: :delete, data: { confirm...
#suggestion/book-agile-web-development-with-rails-7
1 1260 2
New
AufHe
PragProg Customers

Agile Web Development with Rails 7: page 113 - Seeing the list of products
I’m a newbie to Rails 7 and have hit an issue with the bin/Dev script mentioned on pages 112-113. Iteration A1 - Seeing the list of prod...
#question/book-agile-web-development-with-rails-7
0 2601 9
New
EdBorn
PragProg Customers

Agile Web Development with Rails 7: (page 70)
Title: Agile Web Development with Rails 7: (page 70) I am running windows 11 pro with rails 7.0.3 and ruby 3.1.2p20 (2022-04-12 revision...
#question/book-agile-web-development-with-rails-7
0 1120 1
New
andreheijstek
PragProg Customers

Modern front-end development for Rails, second edition - Struggling to get the first chapter to work
After running /bin/setup, the first error was: The foreman' command exists in these Ruby versions: That was easy to fix: gem install fore...
#errata/book-modern-front-end-development-for-rails
0 1104 3
New

Other popular topics Top

Exadra37
Linux Developer Forum>Questions/Help

AMD or Intel for Programming with Linux as the OS?
I am thinking in building or buy a desktop computer for programing, both professionally and on my free time, and my choice of OS is Linux...
#web-development#mobile#android#linux#desktop-computer#mobile-development
36 5138 10
New
DevotionGeo
Backend Developer Forum>Chat/Discussions

Would you use Erlang now when there is Elixir?
Why, if your answer is yes?
/elixir/erlang
167 4163 52
New
AstonJ
General Dev Chat

Which language or framework do you want to learn next?
Curious to know which languages and frameworks you’re all thinking about learning next :upside_down_face: Perhaps if there’s enough peop...
#community#learning
236 5507 87
New
DevotionGeo
Code Editors

Dendron: a personal knowledge management tool on top of VSCode
/vscode#visual-studio-code
28 5658 9
New
Maartz
General Dev Chat

Roc Language - a new purely functional programming language built for speed and ergonomics
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. ...
#programminguages#functional-programming
49 4143 15
New
AstonJ
Frontend Developer Forum>Chat/Discussions

Online Hand to eye coordination test
Was just curious to see if any were around, found this one: I got 51/100: Not sure if it was meant to buy I am sure at times the b...
#online-tools
4 3385 2
New
PragmaticBookshelf
In The Spotlight

Spotlight: Jamis Buck (Author) Interview and AMA!
Author Spotlight Jamis Buck @jamis This month, we have the pleasure of spotlighting author Jamis Buck, who has written Mazes for Prog...
#author-spotlight/ruby/book-the-ray-tracer-challenge/book-mazes-for-programmers
21 5359 10
New
PragmaticBookshelf
In The Spotlight

Spotlight: Rebecca Skinner (Author) Interview and AMA!
Author Spotlight Rebecca Skinner @RebeccaSkinner Welcome to our latest author spotlight, where we sit down with Rebecca Skinner, auth...
#author-spotlight/haskell/book-effective-haskell
106 10202 29
New
PragmaticBookshelf
In The Spotlight

Spotlight: Erin Dees (Author) Interview and AMA!
Author Spotlight Erin Dees @undees Welcome to our new author spotlight! We had the pleasure of chatting with Erin Dees, co-author of ...
#author-spotlight/ruby/rails/book-effective-testing-with-rspec-3#rspec#book-seven-moreuages-in-seven-weeks/book-cucumber-recipes
24 3409 12
New
DevotionGeo
General Questions/Help

Do you prefer regular mechanical keyboards or low profile mechanical keyboards and why?
I have always used antique keyboards like Cherry MX 1800 or Cherry MX 8100 and almost always have modified the switches in some way, like...
/keyboards#mechanical-keyboards
27 2373 10
New
Back to top

Latest in PragProg

The Ray Tracer Challenge: Gradient pattern is not a gradient
PragProg Customers
Clojure Brain Teasers (pg 76) - typo in example
PragProg Customers
Ash Framework B4: typo (page 149)
PragProg Customers
Ash Framework B4: typo (page 138)
PragProg Customers
The Art of Functional Programming: choices for quiz 6 (page 251)
PragProg Customers
Ash Framework B4: typo (page 204)
PragProg Customers
Ash Framework B4: passing map instead of string in search_artists! (page 85)
PragProg Customers
Hotwire Native for Rails Developers: navigatorHostId value (pages 28, 29, 30)
PragProg Customers
Ash Framework B4: typo and missing comma (143)
PragProg Customers
Machine Learning in Elixir: Chapter 4. Bug with avg_loss counting
PragProg Customers
Agile Web Development with Rails 8: (page 54)
PragProg Customers
Advanced Hands-on Rust: Mars elements mismatch in text and code (B3 p264)
PragProg Customers
Advanced Hands-on Rust: Mars mesh calculation wrong (B3 p248)
PragProg Customers
Tmux 3: paste-command not recognized (pg 59)
PragProg Customers
Pragmatic Unit Testing in Java with JUnit, Third Edition: assertEquals arguments reversed (page 241)
PragProg Customers

View all threads ❯

Latest (all)

Rich Geldreich - The Early History of Deferred Shading and Lighting
In The News
Breaking the Algorithmic Ceiling in Pre-Training with Inductive Moment Matching | Luma AI
In The News
Invitation to openSUSE.Asia Summit 2025 - Faridabad, India
Linux News
Truth Functional Logic for Hackers - Part One
In The News
On Naming Things
In The News
Clojure Deref (Mar 21, 2025)
Backend News
openSUSE: Choose Freedom, Not Trialware
Linux News
AI-Generated Voice Evidence Poses Dangers in Court
In The News
Modern Baby - A pioneering computer from Manchester
In The News
A Practical Guide to Running Local LLMs
In The News
Tailwind v4.0.15 released!
Frontend News
PostgreSQL: pgBadger v13.1 released
Backend News
Here’s how I use LLMs to help me write code
In The News
An early look at Nix Dynamic Derivations
In The News
A 10x Faster TypeScript - TypeScript
In The News

View all threads ❯

We ❤️ helpful members!

We reward our most helpful members via our MOTM scheme - by giving away a whopping 25 books per year!

Member of the Month

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Popular Portals

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap