builtins.py 3.6 KB

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  1. import sys as _sys
  2. def print(*args, sep=' ', end='\n'):
  3. s = sep.join([str(i) for i in args])
  4. _sys.stdout.write(s + end)
  5. def round(x, ndigits=0):
  6. assert ndigits >= 0
  7. if ndigits == 0:
  8. return int(x + 0.5) if x >= 0 else int(x - 0.5)
  9. if x >= 0:
  10. return int(x * 10**ndigits + 0.5) / 10**ndigits
  11. else:
  12. return int(x * 10**ndigits - 0.5) / 10**ndigits
  13. def abs(x):
  14. return -x if x < 0 else x
  15. def max(a, b):
  16. return a if a > b else b
  17. def min(a, b):
  18. return a if a < b else b
  19. def all(iterable):
  20. for i in iterable:
  21. if not i:
  22. return False
  23. return True
  24. def any(iterable):
  25. for i in iterable:
  26. if i:
  27. return True
  28. return False
  29. def enumerate(iterable, start=0):
  30. n = start
  31. for elem in iterable:
  32. yield n, elem
  33. n += 1
  34. def sum(iterable):
  35. res = 0
  36. for i in iterable:
  37. res += i
  38. return res
  39. def map(f, iterable):
  40. for i in iterable:
  41. yield f(i)
  42. def filter(f, iterable):
  43. for i in iterable:
  44. if f(i):
  45. yield i
  46. def zip(a, b):
  47. for i in range(min(len(a), len(b))):
  48. yield (a[i], b[i])
  49. def reversed(iterable):
  50. a = list(iterable)
  51. a.reverse()
  52. return a
  53. def sorted(iterable, reverse=False):
  54. a = list(iterable)
  55. a.sort(reverse=reverse)
  56. return a
  57. ##### str #####
  58. def str@split(self, sep):
  59. if sep == "":
  60. return list(self)
  61. res = []
  62. i = 0
  63. while i < len(self):
  64. if self[i:i+len(sep)] == sep:
  65. res.append(self[:i])
  66. self = self[i+len(sep):]
  67. i = 0
  68. else:
  69. i += 1
  70. res.append(self)
  71. return res
  72. def str@format(self, *args):
  73. if '{}' in self:
  74. for i in range(len(args)):
  75. self = self.replace('{}', str(args[i]), 1)
  76. else:
  77. for i in range(len(args)):
  78. self = self.replace('{'+str(i)+'}', str(args[i]))
  79. return self
  80. def str@strip(self, chars=None):
  81. chars = chars or ' \t\n\r'
  82. i = 0
  83. while i < len(self) and self[i] in chars:
  84. i += 1
  85. j = len(self) - 1
  86. while j >= 0 and self[j] in chars:
  87. j -= 1
  88. return self[i:j+1]
  89. ##### list #####
  90. list.__repr__ = lambda self: '[' + ', '.join([repr(i) for i in self]) + ']'
  91. tuple.__repr__ = lambda self: '(' + ', '.join([repr(i) for i in self]) + ')'
  92. list.__json__ = lambda self: '[' + ', '.join([i.__json__() for i in self]) + ']'
  93. tuple.__json__ = lambda self: '[' + ', '.join([i.__json__() for i in self]) + ']'
  94. def __qsort(a: list, L: int, R: int):
  95. if L >= R: return;
  96. mid = a[(R+L)//2];
  97. i, j = L, R
  98. while i<=j:
  99. while a[i]<mid: i+=1
  100. while a[j]>mid: j-=1
  101. if i<=j:
  102. a[i], a[j] = a[j], a[i]
  103. i+=1
  104. j-=1
  105. __qsort(a, L, j)
  106. __qsort(a, i, R)
  107. def list@sort(self, reverse=False):
  108. __qsort(self, 0, len(self)-1)
  109. if reverse:
  110. self.reverse()
  111. class property:
  112. def __init__(self, fget, fset=None):
  113. self.fget = fget
  114. self.fset = fset
  115. def __get__(self, obj):
  116. return self.fget(obj)
  117. def __set__(self, obj, value):
  118. if self.fset is None:
  119. raise AttributeError("readonly property")
  120. self.fset(obj, value)
  121. class staticmethod:
  122. def __init__(self, f):
  123. self.f = f
  124. def __get__(self, obj):
  125. return self.f
  126. def __call__(self, *args):
  127. return self.f(*args)
  128. def type@__repr__(self):
  129. return "<class '" + self.__name__ + "'>"
  130. def help(obj):
  131. if hasattr(obj, '__func__'):
  132. obj = obj.__func__
  133. if hasattr(obj, '__doc__'):
  134. print(obj.__doc__)
  135. else:
  136. print("No docstring found")