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Python Tasks & ML | Π—Π°Π΄Π°Ρ‡ΠΈ ΠΏΠΎ ΠΏΠΈΡ‚ΠΎΠ½Ρƒ ΠΈ ΠΌΠ°ΡˆΠΈΠ½Π½ΠΎΠΌΡƒ ΠΎΠ±ΡƒΡ‡Π΅Π½ΠΈΡŽ

Python Tasks & ML | Π—Π°Π΄Π°Ρ‡ΠΈ ΠΏΠΎ ΠΏΠΈΡ‚ΠΎΠ½Ρƒ ΠΈ ΠΌΠ°ΡˆΠΈΠ½Π½ΠΎΠΌΡƒ ΠΎΠ±ΡƒΡ‡Π΅Π½ΠΈΡŽ

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Algorithms, functions, classes, regular expressions, iterators, generators, OOP, exceptions, NumPy, pandas, scikit-learn https://telega.in/c/python_tasks Questions β€” @dina_ladnyuk

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Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΠΊΠΎΠ΄?
~(10 ^ ~10) + ~~(100 ^ ~100) + ~~~(1000 ^ ~1000)

Π’Ρ‹Π±Π΅Ρ€ΠΈΡ‚Π΅ ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΉ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚
Anonymous voting

Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΠΊΠΎΠ΄?
chr(ord('c') - ord('a') + ord('b'))

Какого значСния Π½Π΅Ρ‚ Π² ΠΊΠΎΡ€Ρ‚Π΅ΠΆΠ΅, Π²ΠΎΠ·Π²Ρ€Π°Ρ‰Π°Π΅ΠΌΠΎΠΌ sys.exc_info() ?
Anonymous voting

Π’Ρ‹Π±Π΅Ρ€ΠΈΡ‚Π΅ ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΉ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚
Anonymous voting

Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΠΊΠΎΠ΄?
try:
    try:
        raise IndexError()
    except Exception as E:
        raise TypeError() from E
except Exception as E:
    raise SyntaxError() from E

Π’Ρ‹Π±Π΅Ρ€ΠΈΡ‚Π΅ ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΉ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚
Anonymous voting

Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΠΊΠΎΠ΄?
class Odd(Exception): pass
def check_even(x):
    if x % 2:
        raise Odd()
    else:
        return True
try:
    result = check_even(6)
    print(result, end=' ')
except Odd:
    print('НСчСтный')
else:
    print('Π§Π΅Ρ‚Π½Ρ‹ΠΉ')

Π’Ρ‹Π±Π΅Ρ€ΠΈΡ‚Π΅ ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΉ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚
Anonymous voting

Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΠΊΠΎΠ΄?
x = 1
try:
    1/0
except Exception as x: 
    print(x)
print(x)

Как Π² Python Π²Ρ‹ΠΉΡ‚ΠΈ ΠΈΠ· всСх Π²Π»ΠΎΠΆΠ΅Π½Π½Ρ‹Ρ… Ρ†ΠΈΠΊΠ»ΠΎΠ² сразу?
Anonymous voting

Π’Ρ‹Π±Π΅Ρ€ΠΈΡ‚Π΅ ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΉ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚
Anonymous voting

Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΠΊΠΎΠ΄?
def f1(): 
    raise IndexError
def f2(): 
    return
def f3(): 
    raise SyntaxError
counters = []
for func in (f1, f2, f3):
    counter = 0
    try:
        try:
            func()
        except IndexError:
            counter += 1   
        except SyntaxError:
            counter += 1  
    finally:
        counter += 1
    counters.append(counter)
print(counters)

Π’Ρ‹Π±Π΅Ρ€ΠΈΡ‚Π΅ ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΉ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚
Anonymous voting

Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΠΊΠΎΠ΄?
def g(*args):
    return sum([f() if callable(f) else f for f in args])
x = g(lambda: 1, lambda: 2, 3, 4)
print(x)

Π’Ρ‹Π±Π΅Ρ€ΠΈΡ‚Π΅ ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΉ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚
Anonymous voting

Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΠΊΠΎΠ΄?
256 >> 7 << 1 << 2 >> 3 >> 1

Какой ΠΌΠ΅Ρ‚ΠΎΠ΄ ΠΈ Π² ΠΊΠ°ΠΊΠΎΠΌ ΠΌΠΎΠ΄ΡƒΠ»Π΅ позволяСт ΠΏΠΎΠ»ΡƒΡ‡Π°Ρ‚ΡŒ значСния ΠΈΠ· ΡΠΊΡΠΏΠΎΠ½Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ распрСдСлСния?
Anonymous voting

Π’Ρ‹Π±Π΅Ρ€ΠΈΡ‚Π΅ ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΉ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚
Anonymous voting

Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΠΊΠΎΠ΄?
try:
    try:
        raise IndexError
    except:
        pass
    finally:
        print('1', end='')
finally:
    print('2')

Python Tasks & ML | Π—Π°Π΄Π°Ρ‡ΠΈ ΠΏΠΎ ΠΏΠΈΡ‚ΠΎΠ½Ρƒ ΠΈ ΠΌΠ°ΡˆΠΈΠ½Π½ΠΎΠΌΡƒ ΠΎΠ±ΡƒΡ‡Π΅Π½ΠΈΡŽ - Statistics & analytics of Telegram channel @python_tasks