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Gymnasium/gym/utils/colorize.py

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"""A set of common utilities used within the environments. These are
not intended as API functions, and will not remain stable over time.
"""
color2num = dict(
gray=30,
red=31,
green=32,
yellow=33,
blue=34,
magenta=35,
cyan=36,
white=37,
crimson=38
)
def colorize(string, color, bold=False, highlight = False):
"""Return string surrounded by appropriate terminal color codes to
print colorized text. Valid colors: gray, red, green, yellow,
blue, magenta, cyan, white, crimson
"""
attr = []
num = color2num[color]
if highlight: num += 10
attr.append(str(num))
if bold: attr.append('1')
attrs = ';'.join(attr)
return '\x1b[%sm%s\x1b[0m' % (attrs, string)