[pypy-issue] Issue #2975: Joining long bytes or str sequences is 10-40x slower on PyPy2 and PyPy3 (pypy/pypy)

New issue 2975: Joining long bytes or str sequences is 10-40x slower on PyPy2 and PyPy3 https://bitbucket.org/pypy/pypy/issues/2975/joining-long-bytes-or-str-sequences-is-10 Andrew Stepanov: I've encountered performance degradation on PyPy2 and PyPy3 with the following code: ```python i

[pypy-issue] Issue #2844: ./pypy3-c -m ensurepip segfaults on MacOS on 3.6 (pypy/pypy)

New issue 2844: ./pypy3-c -m ensurepip segfaults on MacOS on 3.6 https://bitbucket.org/pypy/pypy/issues/2844/pypy3-c-m-ensurepip-segfaults-on-macos-on Andrew Stepanov: Latest pypy built from source from 3.6 branch segfaults on MacOS when I try to install pip: ``` $ ./pypy3-c -m ensurepip

[pypy-issue] Issue #2782: extending bytearray is x30 slower than CPython (pypy/pypy)

New issue 2782: extending bytearray is x30 slower than CPython https://bitbucket.org/pypy/pypy/issues/2782/extending-bytearray-is-x30-slower-than Andrew Stepanov: The following code runs x30 slower on PyPy v5.10.1 (both 2 and 3) vs CPython ```python b = b"\x01\x02" * 2500 x = bytearr

[pypy-issue] Issue #2777: re: incorrect behaviour for long patterns that are used repeatedly (possible JIT bug?) (pypy/pypy)

New issue 2777: re: incorrect behaviour for long patterns that are used repeatedly (possible JIT bug?) https://bitbucket.org/pypy/pypy/issues/2777/re-incorrect-behaviour-for-long-patterns Andrew Stepanov: I've observed that `re` module gives incorrect results for very long patterns tha

[pypy-issue] Issue #2774: cpyext: pybind11: 'instancemethod' has no attribute '__name__' (pypy/pypy)

New issue 2774: cpyext: pybind11: 'instancemethod' has no attribute '__name__' https://bitbucket.org/pypy/pypy/issues/2774/cpyext-pybind11-instancemethod-has-no Andrew Stepanov: When I try to use this simple [pybind11](https://github.com/pybind/pybind11) binding code (which