A repo to backup the assertions in my PyCon 2022 talk
$ pip install -r requirements.txt
$ richbench . Anti-Pattern Benchmark Suite, repeat=5, number=5
┏━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━┳━━━━━━━━━┳━━━━━━━━━┳━━━━━━━━━┳━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━┓
┃ Pattern ┃ Benchmark ┃ ┃ Min ┃ Max ┃ Mean ┃ Min (+) ┃ Max (+) ┃ Mean (+) ┃
┡━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━╇━━━━━━━━━╇━━━━━━━━━╇━━━━━━━━━╇━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━┩
│ 1 │ Copy slice to Local │ │ 0.200 │ 0.230 │ 0.209 │ 0.132 (33.8%) │ 0.224 (2.7%) │ 0.156 (25.4%) │
│ 2 │ Copy name to Local │ │ 0.117 │ 0.130 │ 0.122 │ 0.084 (28.3%) │ 0.089 (31.5%) │ 0.086 (29.6%) │
│ 3 │ Copy dict item to Local │ │ 0.184 │ 0.257 │ 0.219 │ 0.085 (53.9%) │ 0.092 (64.1%) │ 0.088 (59.7%) │
│ 4 │ Copy class attr to Local │ │ 0.146 │ 0.149 │ 0.148 │ 0.058 (60.0%) │ 0.060 (59.7%) │ 0.059 (59.9%) │
│ 5 │ Importing specific name instead of namespace │ │ 0.000 │ 0.000 │ 0.000 │ 0.000 (2.9%) │ 0.000 (40.4%) │ 0.000 (15.7%) │
│ 6 │ Slicing with memoryview instead of bytes │ │ 0.001 │ 0.001 │ 0.001 │ 0.000 (40.0%) │ 0.001 (23.0%) │ 0.001 (34.9%) │
│ 7 │ **Kwargs for known keyword args │ │ 0.000 │ 0.000 │ 0.000 │ 0.000 (38.1%) │ 0.000 (29.9%) │ 0.000 (35.2%) │
│ 8 │ Tiny Functions │ │ 0.000 │ 0.000 │ 0.000 │ 0.000 (60.7%) │ 0.000 (55.8%) │ 0.000 (58.6%) │
│ 9 │ Class instead of dataclass │ │ 0.548 │ 0.654 │ 0.596 │ 0.279 (49.0%) │ 0.306 (53.1%) │ 0.295 (50.4%) │
│ 10 │ Namedtuple instead of dataclass │ │ 0.556 │ 0.648 │ 0.578 │ 0.394 (29.0%) │ 0.539 (16.7%) │ 0.432 (25.2%) │
│ 11 │ class instead of namedtuple │ │ 0.433 │ 0.516 │ 0.465 │ 0.293 (32.3%) │ 0.315 (39.0%) │ 0.303 (34.9%) │
│ 12 │ namedtuple class instead of namedtuple │ │ 0.383 │ 0.392 │ 0.387 │ 0.395 (-3.2%) │ 0.422 (-7.6%) │ 0.405 (-4.8%) │
│ 13 │ dict instead of class │ │ 0.288 │ 0.307 │ 0.294 │ 0.318 (-10.6%) │ 0.375 (-22.1%) │ 0.345 (-17.3%) │
│ 14 │ class with slots │ │ 0.327 │ 0.427 │ 0.360 │ 0.257 (21.4%) │ 0.298 (30.3%) │ 0.275 (23.7%) │
│ 15 │ dataclass with slots │ │ 0.561 │ 0.611 │ 0.593 │ 0.523 (6.8%) │ 0.588 (3.7%) │ 0.552 (7.0%) │
│ 16 │ Using a list comprehension to filter another list │ │ 0.029 │ 0.030 │ 0.029 │ 0.022 (24.7%) │ 0.025 (14.8%) │ 0.023 (21.6%) │
│ 17 │ Refactoring Try..except outside a loop │ │ 0.020 │ 0.020 │ 0.020 │ 0.018 (11.0%) │ 0.019 (8.4%) │ 0.018 (10.6%) │
└─────────┴───────────────────────────────────────────────────┴──┴─────────┴─────────┴─────────┴─────────────────┴─────────────────┴─────────────────┘
