Issues

Issues

• float parsing is off by one ulp on .NET Framework

  IronLanguages/ironpython3#2159 · opened on Nov 11, 2026

• Frame stack breaks when generators and async code finish on another thread

  IronLanguages/ironpython3#2133 · opened on Nov 2, 2026

• Include third-party code licenses

  IronLanguages/ironpython3#2131 · opened on Nov 2, 2026

• frame.f_lineno is always 1 unless tracing is enabled

  IronLanguages/ironpython3#2130 · opened on Nov 2, 2026

• Adjust buffer protocol implementation to support more than 2GB

  IronLanguages/ironpython3#2085 · opened on Oct 5, 2026

• os string marshalling on Linux is inconsistent for unencodable characters

  IronLanguages/ironpython3#2070 · opened on Jun 24, 2026
  1

• Support bytes version of os.environ

  IronLanguages/ironpython3#2069 · opened on Jun 23, 2026

• re.ASCII flag can be set within the scope of a group

  IronLanguages/ironpython3#2066 · opened on Jun 19, 2026
  1

• test_typing.test_awaitable raises a StopIteration with the DLR based async implementation

  IronLanguages/ironpython3#2054 · opened on Jun 15, 2026
  3

• Revert types.coroutine workaround in 3.6

  IronLanguages/ironpython3#2019 · opened on Mar 14, 2026

• PEP 570 – Python Positional-Only Parameters

  IronLanguages/ironpython3#2000 · opened on Feb 22, 2026

• license command fails to find license file on .NET tool install

  IronLanguages/ironpython3#1997 · opened on Feb 18, 2026

• re fails to match ranges starting with escaped -

  IronLanguages/ironpython3#1978 · opened on Jan 21, 2026

• Issue: Cascading Errors in IronPython Parser

  IronLanguages/ironpython3#1974 · opened on Oct 24, 2025
  2

• IronPython shows weak memory behaviors not visible in CPython

  IronLanguages/ironpython3#1972 · opened on Sep 30, 2025

• ironpython 3.4.2 wpf reference issue

  IronLanguages/ironpython3#1970 · opened on Sep 24, 2025

• Problem: Search Path Location is not Reasonable when Embedding in Other Scripting Engines

  IronLanguages/ironpython3#1959 · opened on Jul 6, 2025
  1

• Feature Request: Implement a restricted mode

  IronLanguages/ironpython3#1958 · opened on Jul 2, 2025
  3

• IronPython3 PlatformNotSupportedException in .NET WASM

  IronLanguages/ironpython3#1952 · opened on Apr 25, 2025
  2

• Add arguments to the compiler to make certain functions easier

  IronLanguages/ironpython3#1934 · opened on Mar 26, 2025
  1

• Improvement of CLR array interface for ND cases

  IronLanguages/ironpython3#1887 · opened on Jan 28, 2025

• PythonType.Name from internal to public

  IronLanguages/ironpython3#1868 · opened on Jan 9, 2025

• Print Output Redirection not fully works

  IronLanguages/ironpython3#1863 · opened on Jan 5, 2025
  1

• Unhelpful/misleading error message when inporting fails due to missing dependency

  IronLanguages/ironpython3#1859 · opened on Jan 2, 2025
  2

• FileStream not suitable for FileIO on POSIX systems

  IronLanguages/ironpython3#1846 · opened on Dec 20, 2024
  1