/usr/lib/python3/dist-packages/pyprind/progpercent.py is in python3-pyprind 2.11.1-1.
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Sebastian Raschka 2014-2017
Python Progress Indicator Utility
Author: Sebastian Raschka <sebastianraschka.com>
License: BSD 3 clause
Contributors: https://github.com/rasbt/pyprind/graphs/contributors
Code Repository: https://github.com/rasbt/pyprind
PyPI: https://pypi.python.org/pypi/PyPrind
"""
from pyprind.prog_class import Prog
import time
class ProgPercent(Prog):
"""
Initializes a progress bar object that allows visuzalization
of an iterational computation in the standard output screen.
Parameters
----------
iterations : `int`
Number of iterations for the iterative computation.
track_time : `bool` (default: `True`)
Prints elapsed time when loop has finished.
stream : `int` (default: 2).
Setting the output stream.
Takes `1` for stdout, `2` for stderr, or a custom stream object
title : `str` (default: `''`).
Setting a title for the percentage indicator.
monitor : `bool` (default: `False`)
Monitors CPU and memory usage if `True` (requires `psutil` package).
update_interval : float or int (default: `None`)
The update_interval in seconds controls how often the progress
is flushed to the screen.
Automatic mode if `update_interval=None`.
"""
def __init__(self, iterations, track_time=True,
stream=2, title='', monitor=False, update_interval=None):
Prog.__init__(self, iterations, track_time, stream,
title, monitor, update_interval)
self.last_progress = 0
self._print()
if monitor:
try:
self.process.cpu_percent()
self.process.memory_percent()
except AttributeError: # old version of psutil
self.process.get_cpu_percent()
self.process.get_memory_percent()
def _cache_percent_indicator(self, last_progress):
self._cached_output += '[%3d %%]' % (last_progress)
def _print(self, force_flush=False):
""" Prints formatted percentage and tracked time to the screen."""
self._stream_flush()
next_perc = self._calc_percent()
if self.update_interval:
do_update = time.time() - self.last_time >= self.update_interval
elif force_flush:
do_update = True
else:
do_update = next_perc > self.last_progress
if do_update and self.active:
self.last_progress = next_perc
self._cache_percent_indicator(self.last_progress)
if self.track:
self._cached_output += ' Time elapsed: ' + \
self._get_time(self._elapsed())
self._cache_eta()
if self.item_id:
self._cache_item_id()
self._stream_out('\r%s' % self._cached_output)
self._stream_flush()
self._cached_output = ''
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