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ðŸ“„ __phello__.foo.py(64 B)
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ðŸ“„ _bootlocale.py(1.76 KB)
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ðŸ“„ _collections_abc.py(28.69 KB)
ðŸ“„ _compat_pickle.py(8.54 KB)
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ðŸ“„ _osx_support.py(21.26 KB)
ðŸ“„ _py_abc.py(6.04 KB)
ðŸ“„ _pydecimal.py(223.31 KB)
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ðŸ“„ _sitebuiltins.py(3.04 KB)
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ðŸ“„ _sysconfigdata__linux_x86_64-linux-gnu.py(39.59 KB)
ðŸ“„ _sysconfigdata_d_linux_x86_64-linux-gnu.py(39.33 KB)
ðŸ“„ _threading_local.py(7.05 KB)
ðŸ“„ _weakrefset.py(5.78 KB)
ðŸ“„ abc.py(4.8 KB)
ðŸ“„ aifc.py(31.84 KB)
ðŸ“„ antigravity.py(500 B)
ðŸ“„ argparse.py(95.82 KB)
ðŸ“„ ast.py(54.94 KB)
ðŸ“„ asynchat.py(11.06 KB)
ðŸ“ asyncio
ðŸ“„ asyncore.py(19.63 KB)
ðŸ“„ base64.py(19.41 KB)
ðŸ“„ bdb.py(30.65 KB)
ðŸ“„ binhex.py(14.44 KB)
ðŸ“„ bisect.py(2.29 KB)
ðŸ“„ bz2.py(12.16 KB)
ðŸ“„ cProfile.py(6.21 KB)
ðŸ“„ calendar.py(24.25 KB)
ðŸ“„ cgi.py(33.15 KB)
ðŸ“„ cgitb.py(11.81 KB)
ðŸ“„ chunk.py(5.31 KB)
ðŸ“„ cmd.py(14.51 KB)
ðŸ“„ code.py(10.37 KB)
ðŸ“„ codecs.py(35.81 KB)
ðŸ“„ codeop.py(6.18 KB)
ðŸ“ collections
ðŸ“„ colorsys.py(3.97 KB)
ðŸ“„ compileall.py(19.63 KB)
ðŸ“ concurrent
ðŸ“ config-3.9-x86_64-linux-gnu
ðŸ“„ configparser.py(53.3 KB)
ðŸ“„ contextlib.py(24.05 KB)
ðŸ“„ contextvars.py(129 B)
ðŸ“„ copy.py(8.45 KB)
ðŸ“„ copyreg.py(7.1 KB)
ðŸ“„ crypt.py(3.73 KB)
ðŸ“„ csv.py(15.77 KB)
ðŸ“ ctypes
ðŸ“ curses
ðŸ“„ dataclasses.py(48.42 KB)
ðŸ“„ datetime.py(87.09 KB)
ðŸ“ dbm
ðŸ“„ decimal.py(320 B)
ðŸ“„ difflib.py(81.35 KB)
ðŸ“„ dis.py(20.09 KB)
ðŸ“ distutils
ðŸ“„ doctest.py(102.12 KB)
ðŸ“ email
ðŸ“ encodings
ðŸ“ ensurepip
ðŸ“„ enum.py(38.52 KB)
ðŸ“„ filecmp.py(9.79 KB)
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ðŸ“„ fnmatch.py(5.86 KB)
ðŸ“„ formatter.py(14.79 KB)
ðŸ“„ fractions.py(23.75 KB)
ðŸ“„ ftplib.py(34.66 KB)
ðŸ“„ functools.py(37.97 KB)
ðŸ“„ genericpath.py(4.86 KB)
ðŸ“„ getopt.py(7.31 KB)
ðŸ“„ getpass.py(5.85 KB)
ðŸ“„ gettext.py(26.63 KB)
ðŸ“„ glob.py(5.69 KB)
ðŸ“„ graphlib.py(9.35 KB)
ðŸ“„ gzip.py(21.26 KB)
ðŸ“„ hashlib.py(9.78 KB)
ðŸ“„ heapq.py(22.34 KB)
ðŸ“„ hmac.py(6.84 KB)
ðŸ“ html
ðŸ“ http
ðŸ“„ imaplib.py(53.96 KB)
ðŸ“„ imghdr.py(3.72 KB)
ðŸ“„ imp.py(10.29 KB)
ðŸ“ importlib
ðŸ“„ inspect.py(115.46 KB)
ðŸ“„ io.py(3.46 KB)
ðŸ“„ ipaddress.py(76.79 KB)
ðŸ“ json
ðŸ“„ keyword.py(1.02 KB)
ðŸ“ lib-dynload
ðŸ“ lib2to3
ðŸ“„ linecache.py(5.33 KB)
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ðŸ“ logging
ðŸ“„ lzma.py(12.92 KB)
ðŸ“„ mailbox.py(76.95 KB)
ðŸ“„ mailcap.py(8.9 KB)
ðŸ“„ mimetypes.py(21.06 KB)
ðŸ“„ modulefinder.py(23.83 KB)
ðŸ“ multiprocessing
ðŸ“„ netrc.py(5.44 KB)
ðŸ“„ nntplib.py(40.06 KB)
ðŸ“„ ntpath.py(27.08 KB)
ðŸ“„ nturl2path.py(2.82 KB)
ðŸ“„ numbers.py(10.1 KB)
ðŸ“„ opcode.py(5.53 KB)
ðŸ“„ operator.py(10.5 KB)
ðŸ“„ optparse.py(58.95 KB)
ðŸ“„ os.py(38.15 KB)
ðŸ“„ pathlib.py(52.81 KB)
ðŸ“„ pdb.py(61.77 KB)
ðŸ“„ pickle.py(63.4 KB)
ðŸ“„ pickletools.py(91.29 KB)
ðŸ“„ pipes.py(8.71 KB)
ðŸ“„ pkgutil.py(23.71 KB)
ðŸ“„ platform.py(39.66 KB)
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ðŸ“„ poplib.py(14.84 KB)
ðŸ“„ posixpath.py(15.35 KB)
ðŸ“„ pprint.py(22 KB)
ðŸ“„ profile.py(22.36 KB)
ðŸ“„ pstats.py(28.64 KB)
ðŸ“„ pty.py(4.69 KB)
ðŸ“„ py_compile.py(8.01 KB)
ðŸ“„ pyclbr.py(14.9 KB)
ðŸ“„ pydoc.py(107.04 KB)
ðŸ“ pydoc_data
ðŸ“„ queue.py(11.23 KB)
ðŸ“„ quopri.py(7.11 KB)
ðŸ“„ random.py(30.75 KB)
ðŸ“„ re.py(15.49 KB)
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ðŸ“„ shutil.py(51.79 KB)
ðŸ“„ signal.py(2.38 KB)
ðŸ“ site-packages
ðŸ“„ site.py(21.33 KB)
ðŸ“„ smtpd.py(34.02 KB)
ðŸ“„ smtplib.py(44.35 KB)
ðŸ“„ sndhdr.py(6.93 KB)
ðŸ“„ socket.py(36.05 KB)
ðŸ“„ socketserver.py(26.66 KB)
ðŸ“ sqlite3
ðŸ“„ sre_compile.py(27.32 KB)
ðŸ“„ sre_constants.py(7.01 KB)
ðŸ“„ sre_parse.py(39.82 KB)
ðŸ“„ ssl.py(51.3 KB)
ðŸ“„ stat.py(5.36 KB)
ðŸ“„ statistics.py(37.17 KB)
ðŸ“„ string.py(10.32 KB)
ðŸ“„ stringprep.py(12.61 KB)
ðŸ“„ struct.py(257 B)
ðŸ“„ subprocess.py(81.61 KB)
ðŸ“„ sunau.py(17.73 KB)
ðŸ“„ symbol.py(2.23 KB)
ðŸ“„ symtable.py(7.72 KB)
ðŸ“„ sysconfig.py(24.33 KB)
ðŸ“„ tabnanny.py(11.15 KB)
ðŸ“„ tarfile.py(104.39 KB)
ðŸ“„ telnetlib.py(22.71 KB)
ðŸ“„ tempfile.py(27.31 KB)
ðŸ“„ textwrap.py(18.95 KB)
ðŸ“„ this.py(1003 B)
ðŸ“„ threading.py(52.91 KB)
ðŸ“„ timeit.py(13.18 KB)
ðŸ“„ token.py(2.31 KB)
ðŸ“„ tokenize.py(25.28 KB)
ðŸ“„ trace.py(28.54 KB)
ðŸ“„ traceback.py(24.08 KB)
ðŸ“„ tracemalloc.py(17.62 KB)
ðŸ“„ tty.py(879 B)
ðŸ“„ types.py(9.56 KB)
ðŸ“„ typing.py(75.24 KB)
ðŸ“ unittest
ðŸ“ urllib
ðŸ“„ uu.py(7.11 KB)
ðŸ“„ uuid.py(26.68 KB)
ðŸ“ venv
ðŸ“„ warnings.py(19.23 KB)
ðŸ“„ wave.py(17.58 KB)
ðŸ“„ weakref.py(21.05 KB)
ðŸ“„ webbrowser.py(23.53 KB)
ðŸ“ wsgiref
ðŸ“„ xdrlib.py(5.77 KB)
ðŸ“ xml
ðŸ“ xmlrpc
ðŸ“„ zipapp.py(7.36 KB)
ðŸ“„ zipfile.py(86.17 KB)
ðŸ“„ zipimport.py(30.04 KB)
ðŸ“ zoneinfo

Editing: colorsys.py

"""Conversion functions between RGB and other color systems.

This modules provides two functions for each color system ABC:

rgb_to_abc(r, g, b) --> a, b, c
  abc_to_rgb(a, b, c) --> r, g, b

All inputs and outputs are triples of floats in the range [0.0...1.0]
(with the exception of I and Q, which covers a slightly larger range).
Inputs outside the valid range may cause exceptions or invalid outputs.

Supported color systems:
RGB: Red, Green, Blue components
YIQ: Luminance, Chrominance (used by composite video signals)
HLS: Hue, Luminance, Saturation
HSV: Hue, Saturation, Value
"""

# References:
# http://en.wikipedia.org/wiki/YIQ
# http://en.wikipedia.org/wiki/HLS_color_space
# http://en.wikipedia.org/wiki/HSV_color_space

__all__ = ["rgb_to_yiq","yiq_to_rgb","rgb_to_hls","hls_to_rgb",
           "rgb_to_hsv","hsv_to_rgb"]

# Some floating point constants

ONE_THIRD = 1.0/3.0
ONE_SIXTH = 1.0/6.0
TWO_THIRD = 2.0/3.0

# YIQ: used by composite video signals (linear combinations of RGB)
# Y: perceived grey level (0.0 == black, 1.0 == white)
# I, Q: color components
#
# There are a great many versions of the constants used in these formulae.
# The ones in this library uses constants from the FCC version of NTSC.

def rgb_to_yiq(r, g, b):
    y = 0.30*r + 0.59*g + 0.11*b
    i = 0.74*(r-y) - 0.27*(b-y)
    q = 0.48*(r-y) + 0.41*(b-y)
    return (y, i, q)

def yiq_to_rgb(y, i, q):
    # r = y + (0.27*q + 0.41*i) / (0.74*0.41 + 0.27*0.48)
    # b = y + (0.74*q - 0.48*i) / (0.74*0.41 + 0.27*0.48)
    # g = y - (0.30*(r-y) + 0.11*(b-y)) / 0.59

r = y + 0.9468822170900693*i + 0.6235565819861433*q
    g = y - 0.27478764629897834*i - 0.6356910791873801*q
    b = y - 1.1085450346420322*i + 1.7090069284064666*q

if r < 0.0:
        r = 0.0
    if g < 0.0:
        g = 0.0
    if b < 0.0:
        b = 0.0
    if r > 1.0:
        r = 1.0
    if g > 1.0:
        g = 1.0
    if b > 1.0:
        b = 1.0
    return (r, g, b)

# HLS: Hue, Luminance, Saturation
# H: position in the spectrum
# L: color lightness
# S: color saturation

def rgb_to_hls(r, g, b):
    maxc = max(r, g, b)
    minc = min(r, g, b)
    # XXX Can optimize (maxc+minc) and (maxc-minc)
    l = (minc+maxc)/2.0
    if minc == maxc:
        return 0.0, l, 0.0
    if l <= 0.5:
        s = (maxc-minc) / (maxc+minc)
    else:
        s = (maxc-minc) / (2.0-maxc-minc)
    rc = (maxc-r) / (maxc-minc)
    gc = (maxc-g) / (maxc-minc)
    bc = (maxc-b) / (maxc-minc)
    if r == maxc:
        h = bc-gc
    elif g == maxc:
        h = 2.0+rc-bc
    else:
        h = 4.0+gc-rc
    h = (h/6.0) % 1.0
    return h, l, s

def hls_to_rgb(h, l, s):
    if s == 0.0:
        return l, l, l
    if l <= 0.5:
        m2 = l * (1.0+s)
    else:
        m2 = l+s-(l*s)
    m1 = 2.0*l - m2
    return (_v(m1, m2, h+ONE_THIRD), _v(m1, m2, h), _v(m1, m2, h-ONE_THIRD))

def _v(m1, m2, hue):
    hue = hue % 1.0
    if hue < ONE_SIXTH:
        return m1 + (m2-m1)*hue*6.0
    if hue < 0.5:
        return m2
    if hue < TWO_THIRD:
        return m1 + (m2-m1)*(TWO_THIRD-hue)*6.0
    return m1

# HSV: Hue, Saturation, Value
# H: position in the spectrum
# S: color saturation ("purity")
# V: color brightness

def rgb_to_hsv(r, g, b):
    maxc = max(r, g, b)
    minc = min(r, g, b)
    v = maxc
    if minc == maxc:
        return 0.0, 0.0, v
    s = (maxc-minc) / maxc
    rc = (maxc-r) / (maxc-minc)
    gc = (maxc-g) / (maxc-minc)
    bc = (maxc-b) / (maxc-minc)
    if r == maxc:
        h = bc-gc
    elif g == maxc:
        h = 2.0+rc-bc
    else:
        h = 4.0+gc-rc
    h = (h/6.0) % 1.0
    return h, s, v

def hsv_to_rgb(h, s, v):
    if s == 0.0:
        return v, v, v
    i = int(h*6.0) # XXX assume int() truncates!
    f = (h*6.0) - i
    p = v*(1.0 - s)
    q = v*(1.0 - s*f)
    t = v*(1.0 - s*(1.0-f))
    i = i%6
    if i == 0:
        return v, t, p
    if i == 1:
        return q, v, p
    if i == 2:
        return p, v, t
    if i == 3:
        return p, q, v
    if i == 4:
        return t, p, v
    if i == 5:
        return v, p, q
    # Cannot get here

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