Py-spy-for-datakit

* Add ability to show local variables when dumping out stack traces [77](https://github.com/benfred/py-spy/issues/77)
* Show python thread names in dump [47](https://github.com/benfred/py-spy/issues/47)
* Fix issues with profiling python hosted by .NET exe [171](https://github.com/benfred/py-spy/issues/171)

* Fix issue with profiling dockerized process from the host os [168](https://github.com/benfred/py-spy/issues/168)

* Add ability to profile native python extensions [2](https://github.com/benfred/py-spy/issues/2)
* Add FreeBSD support [112](https://github.com/benfred/py-spy/issues/112)
* Relicense to MIT [163](https://github.com/benfred/py-spy/issues/163)
* Add option to write out Speedscope files [115](https://github.com/benfred/py-spy/issues/115)
* Add option to output raw call stack data [35](https://github.com/benfred/py-spy/issues/35)
* Get thread idle status from OS [92](https://github.com/benfred/py-spy/issues/92)
* Add 'unlimited' default option for the duration [93](https://github.com/benfred/py-spy/issues/93)
* Allow use as a library by other rust programs [110](https://github.com/benfred/py-spy/issues/110)
* Show OS threadids in dump [57](https://github.com/benfred/py-spy/issues/57)
* Drop root permissions when starting new process [116](https://github.com/benfred/py-spy/issues/116)
* Support building for ARM processors [89](https://github.com/benfred/py-spy/issues/89)
* Python 3.8 compatibility
* Fix issues profiling functions with more than 4000 lines [164](https://github.com/benfred/py-spy/issues/164)

* Fix to detect GIL status on Python 3.7+ [104](https://github.com/benfred/py-spy/pull/104)
* Generate flamegraphs without perl (using Inferno) [38](https://github.com/benfred/py-spy/issues/38)
* Use irregular sampling interval to avoid incorrect results [94](https://github.com/benfred/py-spy/issues/94)
* Detect python packages when generating short filenames [75](https://github.com/benfred/py-spy/issues/75)
* Fix issue with finding interpreter with Python 3.7 and 32bit Linux [101](https://github.com/benfred/py-spy/issues/101)
* Detect "v2.7.15+" as a valid version string [81](https://github.com/benfred/py-spy/issues/81)
* Fix to cleanup venv after failing to build with setup.py [69](https://github.com/benfred/py-spy/issues/69)

* Fix running py-spy inside a docker container [68](https://github.com/benfred/py-spy/issues/68)

* Fix partial stack traces from showing up, by pausing process while collecting samples [56](https://github.com/benfred/py-spy/issues/56). Also add a --nonblocking option to use previous behaviour of not stopping process.
* Allow sampling process running in a docker container from the host OS [49](https://github.com/benfred/py-spy/issues/49)
* Allow collecting data for flame graph until interrupted with Control-C [21](https://github.com/benfred/py-spy/issues/21)
* Support 'legacy' strings in python 3 [64](https://github.com/benfred/py-spy/issues/64)