Eric Chen

Currently, the CI/CD for `pypy` fails due to a python intstr conversion issue. Need a fix since it will block all future PRs. example log, ``` ... ... amazon/ion/core.py:286: in...

We use `tracemalloc` to profile memory usage. However, it does not work with pypy because it’s closely tied to CPython internals. So Currently the tool does not generate memory related...

Refer to https://github.com/amzn/ion-python/pull/216 > The performance depends on the size of files we are going to read. On the one hand, if the file is really small but we maintain...

C extension timestamp precision defaults to 6 while sometimes people wants other precision

1

The issue was raised in https://github.com/amzn/ion-python/issues/208 Consider ``` obj = simple_types.IonPyTimestamp.fromisoformat("2022-07-01") str = simpleion.dumps(obj) ``` What should be the expected `str` value? It's `2022-07-01T00:00:00.000000-00:00` currently as C extension set precision...

**Reproduce:** ```.py simpleion.loads(result) ``` **Description:** When read a really large Clob file, it throws `amazon.ion.exceptions.IonException: IERR_LOOKAHEAD_OVERFLOW`: ``` {{ " 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}} ``` it works well for small Clob data. C...

Investigate why read/write lists of integers is slow. More specifically, read/write big integers and decimal is slow. This is kind of duplicated to https://github.com/amzn/ion-python/issues/186 point three, but it's worth to...

C extension supports 9 timestamp precision now. It might need to support more as needed.

2

Right now C extension only supports at most 6 timestamp precision, it would be nice to support more. E.g., `2016-02-02T00:00:30.12345678901234-00:00` will be read as `2016-02-02T00:00:30.123456-00:00`

When we use Setuptool 60.5.0, everything works fine. After upgrading it to 60.6.0, some features are deprecated which causes CI/CD fails. Example: Succeed PR (60.5.0): https://github.com/amzn/ion-python/runs/4911540357?check_suite_focus=true Failed PR (60.6.0) with...

It would be good to integrate memory leak test into unit test.

C extension supports a field name with a length at most 1000 and it's hardcoded. Need to investigate how much ion-c supports.