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Lines changed: 374 additions & 0 deletions

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‎lesson17/binary.py‎

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class Time:
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def __init__(self, hour, minute, second):
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self.hour = hour
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self.minute = minute
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self.second = second
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def __str__(self):
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return f"{str(self.hour).zfill(2)}:" \
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f"{str(self.minute).zfill(2)}:" \
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f"{str(self.second).zfill(2)}"
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def __gt__(self, other):
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if self.hour > other.hour:
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return True
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elif self.hour == other.hour:
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if self.minute > other.minute:
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return True
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elif self.minute == other.minute:
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if self.second > other.second:
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return True
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return False
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def __ge__(self, other):
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if self.hour > other.hour:
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return True
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elif self.hour == other.hour:
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if self.minute > other.minute:
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return True
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elif self.minute == other.minute:
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if self.second >= other.second:
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return True
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return False
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def __eq__(self, other):
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if isinstance(other, Time):
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if self.hour == other.hour and self.minute == other.minute and self.second == other.second:
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return True
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return False
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elif isinstance(other, int):
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print(Time(other,0,0))
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return self == Time(other, 0, 0)
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def __add__(self, other):
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if isinstance(other, Time):
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carry = (self.second + other.second) // 60
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new_second = (self.second + other.second) % 60
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carry = (self.minute + other.minute + carry) // 60
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new_minute = (self.minute + other.minute + carry) % 60
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new_hour = (self.hour + other.hour + carry) % 24
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return Time(new_hour, new_minute, new_second)
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elif isinstance(other, int):
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return Time((self.hour + other)%24, self.minute, self.second)
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def __radd__(self, other):
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return self.__add__(other)
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print(Time(7,44,55) + Time(10,22,5))
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print(Time(7,44,55) + 19)
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print(19 + Time(7,44,55))
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‎lesson17/comparison.py‎

Lines changed: 25 additions & 0 deletions
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class Time:
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def __init__(self, hour, minute, second):
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self.hour = hour
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self.minute = minute
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self.second = second
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def __str__(self):
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return f"{str(self.hour).zfill(2)}:" \
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f"{str(self.minute).zfill(2)}:" \
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f"{str(self.second).zfill(2)}"
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def __gt__(self, other):
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if self.hour > other.hour:
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return True
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elif self.hour == other.hour:
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if self.minute > other.minute:
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return True
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elif self.minute == other.minute:
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if self.second > other.second:
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return True
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return False
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t = Time(11,2,3)
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t2 = Time(11,11,1)
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print(f"{t} > {t2}: {t>t2}")

‎lesson17/comparison2.py‎

Lines changed: 47 additions & 0 deletions
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class Time:
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def __init__(self, hour, minute, second):
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self.hour = hour
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self.minute = minute
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self.second = second
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def __str__(self):
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return f"{str(self.hour).zfill(2)}:" \
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f"{str(self.minute).zfill(2)}:" \
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f"{str(self.second).zfill(2)}"
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def __gt__(self, other):
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if self.hour > other.hour:
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return True
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elif self.hour == other.hour:
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if self.minute > other.minute:
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return True
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elif self.minute == other.minute:
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if self.second > other.second:
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return True
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return False
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def __ge__(self, other):
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if self.hour > other.hour:
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return True
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elif self.hour == other.hour:
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if self.minute > other.minute:
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return True
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elif self.minute == other.minute:
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if self.second >= other.second:
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return True
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return False
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def __eq__(self, other):
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if self.hour == other.hour and self.minute == other.minute and self.second == other.second:
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return True
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return False
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t = Time(11,1,2)
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t2 = Time(11,1,1)
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print(f"{t} > {t2}: {t>t2}")
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print(f"{t} < {t2}: {t<t2}")
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print(f"{t} >= {t2}: {t>=t2}")
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print(f"{t} <= {t2}: {t<=t2}")
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print(f"{t} == {t2}: {t==t2}")
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print(f"{t} != {t2}: {t!=t2}")

‎lesson17/comparison3.py‎

Lines changed: 54 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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class Time:
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def __init__(self, hour, minute, second):
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self.hour = hour
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self.minute = minute
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self.second = second
6+
7+
def __str__(self):
8+
return f"{str(self.hour).zfill(2)}:" \
9+
f"{str(self.minute).zfill(2)}:" \
10+
f"{str(self.second).zfill(2)}"
11+
12+
def __gt__(self, other):
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if self.hour > other.hour:
14+
return True
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elif self.hour == other.hour:
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if self.minute > other.minute:
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return True
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elif self.minute == other.minute:
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if self.second > other.second:
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return True
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return False
22+
23+
def __ge__(self, other):
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if self.hour > other.hour:
25+
return True
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elif self.hour == other.hour:
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if self.minute > other.minute:
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return True
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elif self.minute == other.minute:
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if self.second >= other.second:
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return True
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return False
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def __eq__(self, other):
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if isinstance(other, Time):
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if self.hour == other.hour and self.minute == other.minute and self.second == other.second:
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return True
38+
return False
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elif isinstance(other, int):
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return self == Time(other, 0, 0)
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t = Time(11,1,2)
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t2 = Time(11,1,1)
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print(f"{t} > {t2}: {t>t2}")
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print(f"{t} < {t2}: {t<t2}")
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print(f"{t} >= {t2}: {t>=t2}")
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print(f"{t} <= {t2}: {t<=t2}")
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print(f"{t} == {t2}: {t==t2}")
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print(f"{t} != {t2}: {t!=t2}")
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t = Time(2,0,0)
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print(f"{t} == {2}: {t==2}")
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print(f"{2} == {t}: {2==t}")

‎lesson17/exercise01.py‎

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from math import sqrt
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3+
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class Point:
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def __init__(self, x, y):
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self.x = x
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self.y = y
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def set_x(self, x):
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self.x = x
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def set_y(self, y):
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self.y = y
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def __str__(self):
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return f"({self.x}, {self.y})"
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class Line:
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def __init__(self, point_A=None, point_B=None):
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if point_A is None:
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self.point_A = Point(0,0)
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else:
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self.point_A = point_A
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if point_B is None:
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self.point_B = Point(0,0)
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else:
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self.point_B = point_B
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def set_point_A(self, point_A):
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self.point_A = point_A
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def set_point_B(self, point_B):
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self.point_B = point_B
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def length(self):
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return sqrt((self.point_A.x - self.point_B.x)**2 + (self.point_A.y - self.point_B.y)**2)
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def __str__(self):
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return f"{self.point_A}-{self.point_B}"
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def __eq__(self, other):
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if isinstance(other, int):
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return self.length() == other
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elif isinstance(other, Line):
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return self.length() == other.length()
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def __lt__(self, other):
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if isinstance(other, int):
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return self.length() < other
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elif isinstance(other, Line):
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return self.length() < other.length()
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def __le__(self, other):
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if isinstance(other, int):
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return self.length() <= other
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elif isinstance(other, Line):
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return self.length() <= other.length()
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l1 = Line(Point(1,1), Point(4,5))
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l2 = Line(Point(1,1), Point(4,8))
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print(l1<l2)
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print(l1<=l2)
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print(l1>l2)
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print(l1>=l2)
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print(l1==l2)
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print(l1!=l2)
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print(l1==5)

‎lesson17/exercise02.py‎

Lines changed: 51 additions & 0 deletions
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from random import randrange, seed
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from datetime import datetime
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class Student:
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def __init__(self, full_name):
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self.full_name = full_name
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self.grade = -1
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def __lt__(self, other):
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return self.grade < other.grade
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def __str__(self):
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return f"{self.full_name}({self.grade})"
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def grade_student(student):
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student.grade = randrange(0,11)
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def average(students):
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s = 0
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for student in students:
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s += student.grade
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print("Average: " + str(s/len(students)))
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seed(datetime.now())
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names = ["Kirk Bowman",
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"Bear Byers",
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"Kurtis Macias",
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"Maximus Preece",
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"Cecily Ray",
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"Cade Parry",
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"Jordyn Pitts",
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"Liya Christian",
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"Ceri Orr",
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"Mekhi Hahn"]
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students = [Student(names[i]) for i in range(len(names))]
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for student in students:
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grade_student(student)
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average(students)
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students.sort(reverse=True)
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for student in students:
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print(student)

‎lesson17/exercise03.py‎

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class Byte:
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def __init__(self, s = ""):
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if s == "":
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self.array = [0 for i in range(8)]
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else:
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self.array = [int(c) for c in s]
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def __str__(self):
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st = [str(c) for c in self.array]
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return "".join(st)
11+
12+
def __lshift__(self, other):
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for i in range(other):
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self.array.pop(0)
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self.array.append(0)
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def __rshift__(self, other):
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for i in range(other):
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self.array.pop()
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self.array.insert(0,0)
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def __and__(self, other):
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new_byte = Byte("")
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for i in range(8):
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new_byte.array[i] = self.array[i] & other.array[i]
26+
return new_byte
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28+
def __or__(self, other):
29+
new_byte = Byte("")
30+
for i in range(8):
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new_byte.array[i] = self.array[i] | other.array[i]
32+
return new_byte
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34+
def __xor__(self, other):
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new_byte = Byte("")
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for i in range(8):
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new_byte.array[i] = self.array[i] ^ other.array[i]
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return new_byte
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40+
b = Byte()
41+
b2 = Byte("00010011")
42+
print(b, b2)
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44+
b2 >> 2
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print(b2)
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b2 = Byte("00010011")
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b3 = Byte("00110101")
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print(f"\n{b2}\n{b3}(&)\n{'-'*8}\n{b2&b3}")
50+
print(f"\n{b2}\n{b3}(|)\n{'-'*8}\n{b2|b3}")
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print(f"\n{b2}\n{b3}(^)\n{'-'*8}\n{b2^b3}")

‎lesson17/str.py‎

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class Time:
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def __init__(self, hour, minute, second):
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self.hour = hour
4+
self.minute = minute
5+
self.second = second
6+
7+
def __str__(self):
8+
return f"{str(self.hour).zfill(2)}:" \
9+
f"{str(self.minute).zfill(2)}:" \
10+
f"{str(self.second).zfill(2)}"
11+
12+
13+
t = Time(11,2,3)
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print(t)
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print("The time is " + str(t))

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