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bytes.py

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# literals

print(b'123')

print(br'123')

print(rb'123')

print(b'\u1234')

# construction

print(bytes())

print(bytes(b'abc'))

# make sure empty bytes is converted correctly

print(str(bytes(), 'utf-8'))

a = b"123"

print(a)

print(str(a))

print(repr(a))

print(a[0], a[2])

print(a[-1])

print(str(a, "utf-8"))

print(str(a, "utf-8", "ignore"))

try:

str(a, "utf-8", "ignore", "toomuch")

except TypeError:

print("TypeError")

s = 0

for i in a:

s += i

print(s)

print(bytes("abc", "utf-8"))

print(bytes("abc", "utf-8", "replace"))

try:

bytes("abc")

except TypeError:

print("TypeError")

try:

bytes("abc", "utf-8", "replace", "toomuch")

except TypeError:

print("TypeError")

print(bytes(3))

print(bytes([3, 2, 1]))

print(bytes(range(5)))

# Make sure bytes are not mistreated as unicode

x = b"\xff\x8e\xfe}\xfd\x7f"

print(len(x))

print(x[0], x[1], x[2], x[3])

# Make sure init values are not mistreated as unicode chars

# For sequence of known len

print(bytes([128, 255]))

# For sequence of unknown len

print(bytes(iter([128, 255])))

# Shouldn't be able to make bytes with negative length

try:

bytes(-1)

except ValueError:

print('ValueError')