# F-strings : interpolation, format specs, conversion, debug

# Interpolation basique
name = "Catnip"
version = 1
print(f"Bienvenue dans {name} v{version}")

# Format specs
pi = 3.14159
print(f"Pi arrondi : {pi:.2f}")
print(f"Pi centré  : {pi:^12.4f}")

n = 42
print(f"Hex : {n:#x}")
print(f"Bin : {n:08b}")
print(f"Pad : {n:>10}")

big = 1000000
print(f"Lisible : {big:,}")

ratio = 0.856
print(f"Pourcent : {ratio:.1%}")

# Conversion flags
text = "hello"
print(f"str : {text!s}")
print(f"repr: {text!r}")
print(f"repr+pad: {text!r:>15}")

# Debug syntax
x = 42
y = 3.14
print(f"{x=}")
print(f"{y=:.1f}")
print(f"{x + 10=}")
print(f"{text=!r}")