FerdinaKusumah

"""Reverse String"""
words = "python is awesome !!"
reverse_string_1 = words[::-1]
"""First way"""
# !! emosewa si nohtyp
"""Second way"""
reverse_string_2 = ''.join(reversed(words))
# !! emosewa si nohtyp

FerdinaKusumah

from collections import Counter
"""Check if two words are anagram"""
a = "listen"
b = "silent"
is_anagram = Counter(a) == Counter(b)
# True

FerdinaKusumah

from collections import Counter
"""Find most frequent in list"""
arr = [1, 2, 3, 1, 2, 4, 6, 7, 3, 2, 3, 4]
cnt = Counter(arr)
# Counter({2: 3, 3: 3, 1: 2, 4: 2, 6: 1, 7: 1})

"""Show only frequent in 2 times"""
print(cnt.most_common(2))
# [(2, 3), (3, 3)]

FerdinaKusumah

"""Swapping Variable"""
a, b = 10, True
print(f'before swapping value a = {a}, b = {b}')
# before swapping value a = 10, b = True

a, b = b, a
print(f'after swapping value a = {a}, b = {b}')
# after swapping value a = True, b = 10

FerdinaKusumah

"""Simple Variable"""
a = 10
print(f'simple variable a = {a}')
# simple variable a = 10

"""Multiple Variable"""
a, b = 10, True
print(f'multi variable a, b = {a}, {b}')
# multi variable a, b = 10, True

FerdinaKusumah

app:
  name: "Service name"
  description: "Service name description"
local:
  db:
    host: "iphost"
    port: 5432
    password: "very secret"
    db-name: "dbName"
dev:

FerdinaKusumah

class PrefixPostfixTest:
    def __init__(self):
        self.__bam__ = 42

>>> PrefixPostfixTest().__bam__
42

FerdinaKusumah

class MangledMethod:
    def __method(self):
        return 42

    def call_it(self):
        return self.__method()

>>> MangledMethod().__method()
AttributeError: "'MangledMethod' object has no attribute '__method'"
>>> MangledMethod().call_it()

FerdinaKusumah

class ManglingTest:
    def __init__(self):
        self.__mangled = 'hello'

    def get_mangled(self):
        return self.__mangled

>>> ManglingTest().get_mangled()
'hello'
>>> ManglingTest().__mangled

FerdinaKusumah

class ExtendedSample(Sample):
  
    def __init__(self):
        super().__init__()
        self.a = 'overridden'
        self._b = 'overridden'
        self.__c = 'overridden'


>>> t2 = ExtendedSample()