#22725 ntrinsicError downloading PEX v2.33.4 during pants test in example-python repo on macOS Sequoia 15.6 (M4 Pro): "error sending request for url" despite direct download succeeding Issue created by ecoworld007 Describe the bug When running pants test helloworld/greet/greeting_test.py in the official example-python monorepo, Pants fails with an IntrinsicError while attempting to download the PEX binary (v2.33.4) from GitHub. The error is: pants test helloworld/greet/greeting_test.py 234315.54 [ERROR] 1 Exception encountered: Engine traceback: in

test

goal IntrinsicError: Error downloading file: error sending request for url (https://github.com/pex-tool/pex/releases/download/v2.33.4/pex) Direct manual download of the PEX URL succeeds (e.g., via curl), ruling out network/proxy issues. This blocks running tests and appears specific to Pants' download mechanism on recent macOS/Apple hardware. Pants version Which version of Pants are you using? 2.26 OS Are you encountering the bug on MacOS, Linux, or both? macOS Sequoia 15.6 (on MacBook Pro 14-inch, Nov 2024, Apple M4 Pro chip, 24 GB memory) Additional info Reproduction steps: Clone: git clone https://github.com/pantsbuild/example-python.git && cd example-python Install Pants. Run: pants test helloworld/greet/greeting_test.py No custom pants.toml changes; using repo defaults. pantsbuild/pants