chore: clean up support for old versions of Python

[P403n1x87]

We remove some old code used for the support of older version of Python that is no longe required.

[github-actions]

Austin Benchmarks

Running Austin benchmarks with Python 3.10.15

Benchmark Summary

Comparison of dev against 3.6.0.

The following scenarios show a statistically significant difference in performance between the two versions.

	Sample Rate	Saturation	Error Rate	Sampling Speed
Wall time [sampling interval: 10]	🟡	🟢	🟡	🟡
Multiprocess wall time [sampling interval: 1]	🟡	🟡	🔴	🟡

Benchmark Results

Wall time [sampling interval: 1]

Wall time [sampling interval: 1]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	103000 ± 3000	1 ± 0	2e-05 ± 1e-05	15.1 ± 0.7
dev	104000 ± 2000	1 ± 0	1.4e-05 ± 7e-06	14.8 ± 0.6

Wall time [sampling interval: 10]

Wall time [sampling interval: 10]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	97000 ± 6000	0.91 ± 0.02	2e-05 ± 1e-05	15.4 ± 0.5
dev	98000 ± 4000	0.85 ± 0.01	1.8e-05 ± 8e-06	15.1 ± 0.3

Wall time [sampling interval: 100]

Wall time [sampling interval: 100]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	12300 ± 200	0.0007 ± 0.0002	5e-05 ± 5e-05	16.8 ± 0.8
dev	12300 ± 200	0.0008 ± 0.0002	6e-05 ± 6e-05	16.3 ± 0.7

Wall time [sampling interval: 1000]

Wall time [sampling interval: 1000]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	1860 ± 30	0 ± 0	3e-05 ± 0.0001	17.4 ± 0.8
dev	1860 ± 30	0.0001 ± 0.0002	3e-05 ± 0.0001	18.2 ± 0.9

CPU time [sampling interval: 1]

CPU time [sampling interval: 1]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	30000 ± 1000	1 ± 0	7e-05 ± 3e-05	26.7 ± 0.8
dev	31000 ± 1000	1 ± 0	8e-05 ± 2e-05	26.1 ± 0.6

CPU time [sampling interval: 10]

CPU time [sampling interval: 10]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	31000 ± 1000	1 ± 0	6e-05 ± 5e-05	26.3 ± 0.9
dev	31000 ± 1000	1 ± 0	6e-05 ± 3e-05	26.1 ± 0.9

CPU time [sampling interval: 100]

CPU time [sampling interval: 100]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	6300 ± 10	0.003 ± 0.001	0.0001 ± 0.0001	31.0 ± 0.8
dev	6290 ± 9	0.003 ± 0.001	0.0001 ± 0.0001	30.8 ± 0.9

CPU time [sampling interval: 1000]

CPU time [sampling interval: 1000]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	947 ± 2	0 ± 0	0.0002 ± 0.0003	33 ± 2
dev	947 ± 2	0 ± 0	0.0001 ± 0.0003	33 ± 2

RSA keygen [sampling interval: 1]

RSA keygen [sampling interval: 1]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	32000 ± 1000	1 ± 0	0.0005 ± 0.0005	31 ± 1
dev	31000 ± 2000	1 ± 0	0.0005 ± 0.0002	31 ± 2

RSA keygen [sampling interval: 10]

RSA keygen [sampling interval: 10]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	31000 ± 2000	1 ± 0	0.0005 ± 0.0004	32 ± 3
dev	32000 ± 1000	1 ± 0	0.0006 ± 0.0005	31 ± 1

RSA keygen [sampling interval: 100]

RSA keygen [sampling interval: 100]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	6290 ± 30	0.02 ± 0.03	0.003 ± 0.003	38 ± 5
dev	6290 ± 20	0.02 ± 0.02	0.002 ± 0.001	37 ± 3

RSA keygen [sampling interval: 1000]

RSA keygen [sampling interval: 1000]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	943 ± 1	0 ± 0	0.001 ± 0.002	38 ± 6
dev	942 ± 2	0 ± 0	0.001 ± 0.003	39 ± 8

Full metrics [sampling interval: 1]

Full metrics [sampling interval: 1]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	38000 ± 1000	1 ± 0	5e-05 ± 3e-05	39 ± 1
dev	38900 ± 800	1 ± 0	5e-05 ± 1e-05	39 ± 1

Full metrics [sampling interval: 10]

Full metrics [sampling interval: 10]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	39000 ± 700	1 ± 0	5e-05 ± 3e-05	39.0 ± 0.5
dev	38800 ± 800	1 ± 0	6e-05 ± 2e-05	38.6 ± 0.8

Full metrics [sampling interval: 100]

Full metrics [sampling interval: 100]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	12300 ± 300	0.0046 ± 0.0009	7e-05 ± 7e-05	44 ± 1
dev	12200 ± 200	0.0055 ± 0.0009	0.00014 ± 7e-05	44 ± 1

Full metrics [sampling interval: 1000]

Full metrics [sampling interval: 1000]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	1850 ± 30	0.0 ± 0.0001	0.0002 ± 0.0002	47 ± 2
dev	1850 ± 30	0 ± 0	0.0002 ± 0.0002	47 ± 1

Multiprocess wall time [sampling interval: 1]

Multiprocess wall time [sampling interval: 1]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	3900 ± 500	1 ± 0	0.0002 ± 0.0001	220 ± 20
dev	4200 ± 200	1 ± 0	0.00032 ± 9e-05	230 ± 10

Multiprocess wall time [sampling interval: 10]

Multiprocess wall time [sampling interval: 10]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	4130 ± 100	1 ± 0	0.00031 ± 9e-05	231 ± 5
dev	4200 ± 200	1 ± 0	0.00031 ± 9e-05	230 ± 10

Multiprocess wall time [sampling interval: 100]

Multiprocess wall time [sampling interval: 100]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	3600 ± 600	0.034 ± 0.005	0.0002 ± 0.0001	230 ± 20
dev	4100 ± 200	0.034 ± 0.005	0.00018 ± 7e-05	230 ± 10

Multiprocess wall time [sampling interval: 1000]

Multiprocess wall time [sampling interval: 1000]

	Sample Rate	Saturation	Error Rate	Sampling Speed
3.6.0	3600 ± 500	0.01 ± 0.005	5e-05 ± 3e-05	120 ± 30
dev	3860 ± 100	0.006 ± 0.001	5e-05 ± 4e-05	90 ± 8

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.73%. Comparing base (7c42586) to head (af9ba26).
Report is 2 commits behind head on devel.

Additional details and impacted files

@@            Coverage Diff             @@
##            devel     #239      +/-   ##
==========================================
- Coverage   69.09%   68.73%   -0.37%     
==========================================
  Files          27       27              
  Lines        2521     2517       -4     
  Branches      771      770       -1     
==========================================
- Hits         1742     1730      -12     
- Misses        447      455       +8     
  Partials      332      332              

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