Python Ders Notları PDF

a = 5 print(type(a)) # #%% b = 3.2 print(type(b)) # #%% c = True print(type(c)) # #%% s = 'Bilgisayar' print(type(s)) # #%% n = None print(type(n)) # #%% a = 5; b = 10; c = a + b; print(c) # 15 #%% a = 0.3 print(a) b = 0.2 print(b) c = a - b print(c) # 0.09999999999999998 if (c == 0.1): pr...

a = 5 print(type(a)) # #%% b = 3.2 print(type(b)) # #%% c = True print(type(c)) # #%% s = 'Bilgisayar' print(type(s)) # #%% n = None print(type(n)) # #%% a = 5; b = 10; c = a + b; print(c) # 15 #%% a = 0.3 print(a) b = 0.2 print(b) c = a - b print(c) # 0.09999999999999998 if (c == 0.1): print("True") else: print("False") # False # %% a = 10 if (a > 0): print("Pozitif bir sayı girdiniz") print("Girdiğiniz sayı 0'dan büyük bir sayıdır") elif (a < 0): print("Negatif bir sayı girdiniz") else: print("Girdiğiniz sayı sıfırdır") # %% result = 5 ** 4 print(result) # 625 # %% result = 10 / 3 print(result) # 3.3333333333333335 # %% result = 10 // 3 print(result) # 3 # %% a = 10; b = 20; c = 30 print(a, b, c, sep=', ') print(a, b, c, sep='') print(a, b, c, sep='', end='.') ''' 10, 20, 30 102030 102030. ''' # %% a = int(input('Bir değer giriniz : ')) result = a ** 2 print(result) # %% # Dolaşılabilir (iterable) Nesneler # listeler, kümeler, sözlükler, demetler, stringler # Listeler (Lists) a = [1, 2, 3] print(a) # [1, 2, 3] print(type(a)) # x = [1, 2.5, 'Ali', 'Murat'] print(x) # [1, 2.5, 'Ali', 'Murat'] #%% x = [1, 2.5, 'Ali', 'Murat', [20, 30, 'Kemal']] print(x) #%% a = [10, 20, 30, 40, 50] print(a[-1]) # 50 #%% a = [1, [2, 3, 4], 5, [6, 7, 8]] print(a[-1]) # 4 print(a[-1][-2]) # 7 #%% a = [10, 20, 30, 40, 50, 60, 70, 80, 90, 100] print(a[1:3]) # [20, 30] print(a[0:len(a)]) # [10, 20, 30, 40, 50, 60, 70, 80, 90, 100] print(a[7:15]) print(a[-20:3]) # [10, 20, 30] print(a[::2]) # [10, 30, 50, 70, 90] print(a[8: 1:-1]) # [90, 80, 70, 60, 50, 40, 30] # %% a = [10, 20, 30, 40, 50, 60, 70, 80] b = a print('b = ', id(b)) # 4379790784 print('a = ', id(a)) # 4379790784 # %% a = [10, 20, 30, 40, 50, 60, 70, 80] b = a[:] print('b = ', id(b)) # b = 4379798848 print('a = ', id(a)) # a = 4379789632 # %% a = [10, 20, 30, 40, 50, 60, 70, 80] b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] c = a + b print(c) # [10, 20, 30, 40, 50, 60, 70, 80, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] # %% a = [10, 20, 30, 40, 50, 60, 70] b = list(a) print('a = ', id(a)) # a = 4379797248 print('b = ', id(b)) # b = 4379870400 # %% a = list('Bursa Uludağ Üniversitesi') print(a) # %% a = [10, 20, 30, 40, 50, 60, 70] a[2:4] = [1, 2, 3] print(a) # [10, 20, 1, 2, 3, 50, 60, 70] # %% a = [10, 20, 30, 40, 50, 60, 70] a[2:4] = print(a) # [10, 20, 13, 50, 60, 70] # %% a = [10, 20, 30, 40, 50, 60, 70] a[2:4] = [] print(a) # [10, 20, 50, 60, 70] # %% a = [10, 20, 30, 40, 50, 60, 70] a[0:0] = [1, 2] print(a) # [1, 2, 10, 20, 30, 40, 50, 60, 70] # %% a = [10, 20, 30, 40, 50, 60, 70, 80, 90] a[0:8:2] = [10, 20, 30] print(a) # ERROR!!! # Listenin elemanlarının dilimleme yoluyla güncellendiği durumlarda, # dilimlemede step değeri verilmişse atanacak listenin tam seçilen eleman # sayısı kadar olması gerekmaktedir. # %% # range fonksiyonu r = range(10) l = list(r) print(l) # [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] # %% l = list(range(10)) print(l) # [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] # %% l = list(range(10, 20, 2)) print(l) # [10, 12, 14, 16, 18] # %% l = list(range(100, 90, -2)) print(l) # [100, 98, 96, 94, 92] # %% a = [1, 2, 3, 5.6, 'Yaren', 'Yağmur', 'Mehmet', 10] print(3 in a) # True print('Ahmet' not in a) # True # %% a = [1, 2, 3, 5.6, 'Yaren', 'Ahmet'] a.append(100) print(a) # [1, 2, 3, 5.6, 'Yaren', 'Ahmet', 100] # %% a = [1, 2, 3, 5.6, 'Yaren', 'Ahmet'] a.append([10, 20, 30, 40, 50, 60, 70]) print(a) # [1, 2, 3, 5.6, 'Yaren', 'Ahmet', [10, 20, 30, 40, 50, 60, 70]] # %% a = [1, 2, 3, 5.6, 'Yaren', 'Ahmet'] a.extend([10, 20, 30]) print(a) # [1, 2, 3, 5.6, 'Yaren', 'Ahmet', 10, 20, 30] # %% a = [10, 20, 30, 40, 50, 60, 70] a.insert(2, 100) print(a) # [10, 20, 100, 30, 40, 50, 60, 70] # %% a = [10, 20, 30, 40, 50, 60, 70] a[2:2] = print(a) # [10, 20, 100, 30, 40, 50, 60, 70] # %% a = [10, 20, 30, 40, 50, 60, 70] a.pop() print(a) # [10, 20, 30, 40, 50, 60] # %% a = [10, 20, 30, 40, 50, 60, 70] a.pop(-1) print(a) # [10, 20, 30, 40, 50, 60] # %% a = [10, 20, 30, 40, 50, 60, 70] a.clear() print(a) # [] # %% a = [10, 20, 30, 'Ali', 50, 60, 70, 'Muhammed', 'Ali'] a.remove('Ali') print(a) # [10, 20, 30, 50, 60, 70, 'Muhammed', 'Ali'] # %% a = [10, 20, 30, 'Ali', 50, 60, 70, 'Muhammed', 'Ali'] print(a.index('Ali')) # 3 # %% a = [10, 20, 30, 'Ali', 50, 60, 70, 'Muhammed', 'Ali'] print(a.index('Ali', 4)) # 8 # %% a = [10, 20, 30, 'Ali', 50, 60, 'Muhammed', 'Ali'] print(a.count('Ali')) # 2 # %% a = [3, 58, 2, 9, 21, 90, 32, 45, 13] a.sort() print(a) # [2, 3, 9, 13, 21, 32, 45, 58, 90] # %% a = [3, 58, 2, 9, 21, 90, 32, 45, 13] a.sort(reverse=True) print(a) # [90, 58, 45, 32, 21, 13, 9, 3, 2] # %% names = ['Ali', 'Muhammed', 'Veli', 'Fatma', 'Murat', 'Yaren', 'Ahmet'] names.sort() print(names) # ['Ahmet', 'Ali', 'Fatma', 'Muhammed', 'Murat', 'Veli', 'Yaren'] # %% names = ['Ali', 'Muhammed', 'Veli', 'Fatma', 'Murat', 'Yaren', 'Ahmet'] names.sort(key=len) print(names) # ['Ali', 'Veli', 'Fatma', 'Murat', 'Yaren', 'Ahmet', 'Muhammed'] # %% names = ['Ali', 'Muhammed', 'Veli', 'Fatma', 'Murat', 'Yaren', 'Ahmet'] names.sort(key=str.lower) print(names) # ['Ahmet', 'Ali', 'Fatma', 'Muhammed', 'Murat', 'Veli', 'Yaren'] # %% a = [3, 58, 2, 9, 21, 90, 32] b = a.copy() print(b) # [3, 58, 2, 9, 21, 90, 32] # %% a = 'Ali' b = 'Yaren' c = 'Mehmet' # %% [a, b, c] = ['Atakan', 'Rüzgar', 'Ahmet'] print(a)