Satrlar bilan ishlash

birinchi = "Qo'shtirnoq bilan"
ikkinchi = 'Bitta tirnoq bilan'
kop_satrli = """Bu matn
bir necha satrdan
iborat"""

print(kop_satrli)

matn = "PYTHON"

print(matn[0])       # birinchi belgi
print(matn[3])       # to'rtinchi belgi
print(matn[-1])      # oxirgi belgi
print(matn[-2])      # oxiridan ikkinchi
print(len(matn))     # uzunligi

matn = "Dasturlash"

print(matn[0:7])      # 0 dan 7 gacha (7 kirmaydi)
print(matn[:7])       # boshidan 7 gacha
print(matn[7:])       # 7 dan oxirigacha
print(matn[:])        # to'liq nusxa
print(matn[::2])      # har ikkinchi belgi
print(matn[::-1])     # teskari
print(matn[-4:])      # oxirgi 4 belgi

matn = "salom DUNYO"

print(matn.upper())        # hammasi katta
print(matn.lower())        # hammasi kichik
print(matn.title())        # Har So'z Bosh Harf
print(matn.capitalize())   # Faqat birinchi harf
print(matn.swapcase())     # registrni almashtirish

kiritilgan = "   [email protected]   "

print(f"[{kiritilgan}]")
print(f"[{kiritilgan.strip()}]")      # ikki tomondan
print(f"[{kiritilgan.lstrip()}]")     # chapdan
print(f"[{kiritilgan.rstrip()}]")     # o'ngdan

manzil = "Toshkent shahri, Chilonzor tumani"

print(manzil.find("Chilonzor"))       # indeksni qaytaradi
print(manzil.find("Yunusobod"))       # topilmasa -1
print(manzil.count("a"))              # necha marta uchraydi
print(manzil.replace("Chilonzor", "Yunusobod"))
print(manzil.startswith("Toshkent"))
print(manzil.endswith("tumani"))

qator = "olma,anor,uzum,shaftoli"

mevalar = qator.split(",")
print(mevalar)

# Teskari amal
yangi_qator = " | ".join(mevalar)
print(yangi_qator)

# Bo'shliq bo'yicha bo'lish (sukut bo'yicha)
gap = "Men Python o'rganyapman"
sozlar = gap.split()
print(sozlar, "-", len(sozlar), "ta so'z")

kiritilgan = input("Yoshingizni kiriting: ")

if kiritilgan.isdigit():
    yosh = int(kiritilgan)
    print(f"Rahmat! Sizga {yosh} yosh.")
else:
    print("Xato: faqat raqam kiriting.")

ism = "Sardor"
narx = 1234567.891
foiz = 0.2456

print(f"Salom, {ism}!")
print(f"Narx: {narx:,.2f} so'm")        # minglik ajratgich + 2 kasr
print(f"Chegirma: {foiz:.1%}")          # foiz shaklida
print(f"Hisob: {42:05d}")               # nollar bilan to'ldirish
print(f"Hex: {255:x}, Bin: {5:b}")      # sanoq sistemalari

mahsulotlar = [("Klaviatura", 185000), ("Sichqoncha", 95000), ("Monitor", 2450000)]

print(f"{'Mahsulot':<15}{'Narx':>12}")
print("-" * 27)
for nomi, narxi in mahsulotlar:
    print(f"{nomi:<15}{narxi:>12,}")

# ============================================
# Matn statistikasini hisoblovchi dastur
# ============================================

matn = """Python - bu yuqori darajali dasturlash tili.
Python o'qish uchun juda qulay.
Ko'plab kompaniyalar Python ishlatadi."""

sozlar = matn.split()
satrlar = matn.split("\n")
belgilar = len(matn.replace(" ", "").replace("\n", ""))

print("=" * 40)
print(f"{'MATN TAHLILI':^40}")
print("=" * 40)
print(f"{'Satrlar soni:':<26}{len(satrlar):>13}")
print(f"{'So‘zlar soni:':<26}{len(sozlar):>13}")
print(f"{'Belgilar (bo‘shliqsiz):':<26}{belgilar:>13}")
print(f"{'Python soni:':<26}{matn.count('Python'):>13}")
print(f"{'O‘rtacha so‘z uzunligi:':<26}{belgilar / len(sozlar):>13.1f}")
print("=" * 40)

print("\nEng uzun 3 ta so'z:")
for soz in sorted(sozlar, key=len, reverse=True)[:3]:
    print(f"  - {soz.strip('.,')} ({len(soz)} belgi)")