PyneIDE 0.9.0 (Preview)

Preview release. This build is for testing.

Preview release for testing ahead of 1.0.0.

Added

• Strategy Properties tab for editing backtest settings alongside script inputs.
• Bundled PyneCore documentation, available through the Documentation menu.
• GitHub release workflow with version checks, cross-platform environment
  tests and a downloadable VSIX attached to a draft release.
• Remove Environment. The status bar menu (and the PyneIDE: Remove Environment command) now deletes what PyneIDE downloaded — the Python
  environment with its installed plugins, and optionally the Pine language
  server — after showing how much each one takes. Until now the only way out
  was a clean reinstall, and uninstalling the extension left the whole
  environment on disk. Reveal Environment Folder opens that location in the
  file manager.

Changed

• PyneCore pin 6.7.0 → 6.10.10. The managed environment installs the newer
  release, and an own install older than it is no longer accepted: 6.7.x wrote
  the v2 OHLCV format through POSIX-only os.pread/os.pwrite, so every data
  download and the demo data generator failed on Windows. The debugger follows
  two runtime changes of the releases in between: a state vector now carries its
  own slot layout (Locals and Watch read it from there), and a Pine int is a
  double at runtime, so the Pyne scope converts bar_index and time back to
  integers instead of showing 0.0 and losing the derived datetime row.
• Pyne Edge profile 2026.09.2: in / not in are now allowed. Membership
  in a tuple or list of same-typed constants is a chain of exact equalities;
  the compiler enforces the element-type homogeneity.
• Pyne Edge profile 2026.09.1: assert is now allowed in Edge scripts. A
  failed assertion ends the run on every runtime, so it costs one comparison
  and nothing to port; the message, when given, must be a string literal
  (pyne-edge-assert otherwise).

Fixed

• Debugger inspection and paused charts. Clearer series-history errors,
  filtered internal variables, Pine call stacks, value formatting and Locals
  ordering, plus a marker showing the paused bar on the chart.
• Run preparation and chart state. Fixes for settings saves, persisted plot
  rendering, chart legends, layer controls and initial data selection.
• No type errors for a float in an int slot. A Pine int is a double at
  runtime, and Pine types int / int as an int while Python types it as a
  float, so valid Pyne code such as ta.wma(src, length / 2), count: int = total / 2 or for i in range(n / 2) was flagged by the bundled pyright. In
  @pyne documents these reports are now dropped when the only failure is a
  float where an int (or an optional int) is expected; a container mismatch
  (list[float] into list[int]), a non-number and a subscript index still
  report.

Installation

Download pyneide-0.9.0.vsix below, then run Extensions: Install from VSIX… in VS Code.

VSIX installations do not update automatically. Install each new build manually.