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99 lines
2.5 KiB
99 lines
2.5 KiB
"""
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Thin wrappers around common functions.
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Subpackages contain potentially unstable extensions.
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"""
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import sys
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from functools import wraps
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from ..auto import tqdm as tqdm_auto
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from ..std import tqdm
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from ..utils import ObjectWrapper
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__author__ = {"github.com/": ["casperdcl"]}
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__all__ = ['tenumerate', 'tzip', 'tmap']
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class DummyTqdmFile(ObjectWrapper):
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"""Dummy file-like that will write to tqdm"""
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def __init__(self, wrapped):
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super(DummyTqdmFile, self).__init__(wrapped)
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self._buf = []
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def write(self, x, nolock=False):
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nl = b"\n" if isinstance(x, bytes) else "\n"
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pre, sep, post = x.rpartition(nl)
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if sep:
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blank = type(nl)()
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tqdm.write(blank.join(self._buf + [pre, sep]),
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end=blank, file=self._wrapped, nolock=nolock)
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self._buf = [post]
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else:
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self._buf.append(x)
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def __del__(self):
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if self._buf:
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blank = type(self._buf[0])()
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try:
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tqdm.write(blank.join(self._buf), end=blank, file=self._wrapped)
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except (OSError, ValueError):
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pass
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def builtin_iterable(func):
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"""Wraps `func()` output in a `list()` in py2"""
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if sys.version_info[:1] < (3,):
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@wraps(func)
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def inner(*args, **kwargs):
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return list(func(*args, **kwargs))
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return inner
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return func
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def tenumerate(iterable, start=0, total=None, tqdm_class=tqdm_auto, **tqdm_kwargs):
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"""
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Equivalent of `numpy.ndenumerate` or builtin `enumerate`.
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Parameters
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----------
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tqdm_class : [default: tqdm.auto.tqdm].
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"""
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try:
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import numpy as np
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except ImportError:
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pass
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else:
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if isinstance(iterable, np.ndarray):
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return tqdm_class(np.ndenumerate(iterable), total=total or iterable.size,
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**tqdm_kwargs)
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return enumerate(tqdm_class(iterable, total=total, **tqdm_kwargs), start)
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@builtin_iterable
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def tzip(iter1, *iter2plus, **tqdm_kwargs):
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"""
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Equivalent of builtin `zip`.
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Parameters
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----------
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tqdm_class : [default: tqdm.auto.tqdm].
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"""
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kwargs = tqdm_kwargs.copy()
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tqdm_class = kwargs.pop("tqdm_class", tqdm_auto)
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for i in zip(tqdm_class(iter1, **kwargs), *iter2plus):
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yield i
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@builtin_iterable
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def tmap(function, *sequences, **tqdm_kwargs):
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"""
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Equivalent of builtin `map`.
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Parameters
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----------
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tqdm_class : [default: tqdm.auto.tqdm].
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"""
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for i in tzip(*sequences, **tqdm_kwargs):
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yield function(*i)
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