# -*- coding: utf-8 -*-
import sys
import itertools
[docs]def looper(limit):
"""Return an optionally endless list of indexes."""
if limit is not None:
return range(limit)
return itertools.count()
[docs]def is_plot_enabled():
"""Return true if plotting is enabled.
Plotting requires matplotlib and pandas to be installed.
:return: indication of whether plotting is enabled
:rtype: bool
"""
if is_plot_enabled.cache is None:
try:
import matplotlib # noqa: 401
import pandas # noqa: 401
except ImportError:
is_plot_enabled.cache = False
else:
is_plot_enabled.cache = True
return is_plot_enabled.cache
is_plot_enabled.cache = None
return max(value, sys.float_info.min)