• Poetry version: 1.7.1

• Python version: 3.9.18

• OS version and name: macOS 14.2.1 (23C71)

• pyproject.toml: none, see repro steps below

• I am on the latest stable Poetry version, installed using a recommended method.

• I have searched the issues of this repo and believe that this is not a duplicate.

• I have consulted the FAQ and blog for any relevant entries or release notes.

• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option) and have included the output below.

Issue

Poetry doesn't handle underscores in package names really well. Two examples are:

• poetry new test_package
  • prints Created package test_package in test_package
  • but cat test_package/pyproject.toml actually prints name = "test-package"
• poetry version still prints test-package, even if you manually change pyproject.toml to name = "test_package"