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# File under the MIT license, see https://github.com/adefossez/julius/LICENSE for details.
# Author: adefossez, 2020
"""
Non signal processing related utilities.
"""
import inspect
import typing as tp
import sys
import time
def simple_repr(obj, attrs: tp.Optional[tp.Sequence[str]] = None,
overrides: dict = {}):
"""
Return a simple representation string for `obj`.
If `attrs` is not None, it should be a list of attributes to include.
"""
params = inspect.signature(obj.__class__).parameters
attrs_repr = []
if attrs is None:
attrs = list(params.keys())
for attr in attrs:
display = False
if attr in overrides:
value = overrides[attr]
elif hasattr(obj, attr):
value = getattr(obj, attr)
else:
continue
if attr in params:
param = params[attr]
if param.default is inspect._empty or value != param.default: # type: ignore
display = True
else:
display = True
if display:
attrs_repr.append(f"{attr}={value}")
return f"{obj.__class__.__name__}({','.join(attrs_repr)})"
class MarkdownTable:
"""
Simple MarkdownTable generator. The column titles should be large enough
for the lines content. This will right align everything.
>>> import io # we use io purely for test purposes, default is sys.stdout.
>>> file = io.StringIO()
>>> table = MarkdownTable(["Item Name", "Price"], file=file)
>>> table.header(); table.line(["Honey", "5"]); table.line(["Car", "5,000"])
>>> print(file.getvalue().strip()) # Strip for test purposes
| Item Name | Price |
|-----------|-------|
| Honey | 5 |
| Car | 5,000 |
"""
def __init__(self, columns, file=sys.stdout):
self.columns = columns
self.file = file
def _writeln(self, line):
self.file.write("|" + "|".join(line) + "|\n")
def header(self):
self._writeln(f" {col} " for col in self.columns)
self._writeln("-" * (len(col) + 2) for col in self.columns)
def line(self, line):
out = []
for val, col in zip(line, self.columns):
val = format(val, '>' + str(len(col)))
out.append(" " + val + " ")
self._writeln(out)
class Chrono:
"""
Measures ellapsed time, calling `torch.cuda.synchronize` if necessary.
`Chrono` instances can be used as context managers (e.g. with `with`).
Upon exit of the block, you can access the duration of the block in seconds
with the `duration` attribute.
>>> with Chrono() as chrono:
... _ = sum(range(10_000))
...
>>> print(chrono.duration < 10) # Should be true unless on a really slow computer.
True
"""
def __init__(self):
self.duration = None
def __enter__(self):
self._begin = time.time()
return self
def __exit__(self, exc_type, exc_value, exc_tracebck):
import torch
if torch.cuda.is_available():
torch.cuda.synchronize()
self.duration = time.time() - self._begin
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