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"""
Thin wrappers around common functions.
Subpackages contain potentially unstable extensions.
"""
from warnings import warn
from ..auto import tqdm as tqdm_auto
from ..std import TqdmDeprecationWarning, tqdm
from ..utils import ObjectWrapper
__author__ = {"github.com/": ["casperdcl"]}
__all__ = ['tenumerate', 'tzip', 'tmap']
class DummyTqdmFile(ObjectWrapper):
"""Dummy file-like that will write to tqdm"""
def __init__(self, wrapped):
super(DummyTqdmFile, self).__init__(wrapped)
self._buf = []
def write(self, x, nolock=False):
nl = b"\n" if isinstance(x, bytes) else "\n"
pre, sep, post = x.rpartition(nl)
if sep:
blank = type(nl)()
tqdm.write(blank.join(self._buf + [pre, sep]),
end=blank, file=self._wrapped, nolock=nolock)
self._buf = [post]
else:
self._buf.append(x)
def __del__(self):
if self._buf:
blank = type(self._buf[0])()
try:
tqdm.write(blank.join(self._buf), end=blank, file=self._wrapped)
except (OSError, ValueError):
pass
def builtin_iterable(func):
"""Returns `func`"""
warn("This function has no effect, and will be removed in tqdm==5.0.0",
TqdmDeprecationWarning, stacklevel=2)
return func
def tenumerate(iterable, start=0, total=None, tqdm_class=tqdm_auto, **tqdm_kwargs):
"""
Equivalent of `numpy.ndenumerate` or builtin `enumerate`.
Parameters
----------
tqdm_class : [default: tqdm.auto.tqdm].
"""
try:
import numpy as np
except ImportError:
pass
else:
if isinstance(iterable, np.ndarray):
return tqdm_class(np.ndenumerate(iterable), total=total or iterable.size,
**tqdm_kwargs)
return enumerate(tqdm_class(iterable, total=total, **tqdm_kwargs), start)
def tzip(iter1, *iter2plus, **tqdm_kwargs):
"""
Equivalent of builtin `zip`.
Parameters
----------
tqdm_class : [default: tqdm.auto.tqdm].
"""
kwargs = tqdm_kwargs.copy()
tqdm_class = kwargs.pop("tqdm_class", tqdm_auto)
for i in zip(tqdm_class(iter1, **kwargs), *iter2plus):
yield i
def tmap(function, *sequences, **tqdm_kwargs):
"""
Equivalent of builtin `map`.
Parameters
----------
tqdm_class : [default: tqdm.auto.tqdm].
"""
for i in tzip(*sequences, **tqdm_kwargs):
yield function(*i)
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