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104 lines
2.7 KiB
104 lines
2.7 KiB
#! /usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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Copyright 2020, Nils Hilbricht, Germany ( https://www.hilbricht.net )
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Most of this file is trivial code and does not reach the "Schaffenshöhe" for Urheberrecht.
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If it is:
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This is practically intended as my Public Domain software.
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However, there is no such thing as public domain in Germany.
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Therefore:
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Released under WTFPL License
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This program is free software. It comes without any warranty, to
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the extent permitted by applicable law.
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You can redistribute it and/or modify it under the
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terms of the Do What The Fuck You Want To Public License, Version 2,
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as published by Sam Hocevar. See http://www.wtfpl.net/ for more details.
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"""
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def nothing(*args, **kwargs):
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pass
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from functools import lru_cache #https://docs.python.org/3.4/library/functools.html#functools.lru_cache
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cache_unlimited = lru_cache(maxsize=None)
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#use as @cache_unlimited decorator
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import itertools
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def pairwise(iterable):
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"s -> (s0,s1), (s1,s2), (s2, s3), ..."
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a, b = itertools.tee(iterable)
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next(b, None)
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return zip(a, b)
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def onlyOne(iterable):
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true_found = False
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for v in iterable:
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if v:
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# a True was found!
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if true_found:
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# found too many True's
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return False
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else:
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# found the first True
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true_found = True
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# found zero or one True value
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return true_found
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class EndlessGenerator(object):
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"""used to turn a single
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parameter into an endless list of paramters.
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DO NOT for loop over this object.
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It will never stop. Use it with next(instance)"""
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def __init__(self, value):
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self.value = value
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def __iter__(self):
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return self
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def __next__(self):
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return self.value
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def flatList(lst):
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"""Take a nested list of any depth and make it a flat, plain
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list with only one level"""
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for elem in lst:
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if type(elem) in (list, tuple):
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for i in flatList(elem):
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yield i
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else:
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yield elem
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def compress(input, inputLowest, inputHighest, outputLowest, outputHighest):
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return (input-inputLowest) / (inputHighest-inputLowest) * (outputHighest-outputLowest) + outputLowest
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def listToUniqueKeepOrder(seq):
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seen = set()
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seen_add = seen.add
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return [x for x in seq if not (x in seen or seen_add(x))]
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def padhexa(self, s:str):
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"""Like zfill, but for hex number strings"""
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return '0x' + s[2:].zfill(2)
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import inspect
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from pprint import pprint
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def whoCalled():
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"""If you want to use this only once, better use breakpoint()"""
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pprint (inspect.stack())
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print()
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def provokecrash():
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"""Obviously for testing"""
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import ctypes
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p = ctypes.pointer(ctypes.c_char.from_address(5))
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p[0] = b'x'
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