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# -*- coding: utf-8 -*-
#
# generic tools for apps
#
def format_float(number): # {{{
"""
format the display style of a float number
"""
threshold_min = 0.001
threshold_max = 9999.9
fix_fmt = '{:,.1f}' # comma as a thousands separator
exp_fmt = '{:.1e}'
#
if isinstance(number, int) or isinstance(number, float):
#return type(number)
pass
else:
return False
#
if (number > threshold_max) or (number < threshold_min):
str = exp_fmt.format(number)
else:
str = fix_fmt.format(number)
#
return str
# }}}
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