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from enum import StrEnum


class Status(StrEnum):
    PENDING = "pending"
    ACTIVE = "active"
    CANCELLED = "cancelled"


s = Status.ACTIVE

# 1. print(member) — the StrEnum surprise: value, NOT Status.ACTIVE
print(s)
# 2. Equal to the plain string
print(s == "active")
# 3. .value accessor (same as print here, but explicit)
print(s.value)
# 4. isinstance(member, str) — StrEnum members ARE strings
print(isinstance(s, str))
# 5. f-string interpolation uses str(member) = the value
print(f"status: {s}")

# 6. Lookup by value — print(member) again returns value
print(Status("pending"))
# 7. .name accessor — capital identifier
print(Status("pending").name)

# 8. Invalid value
try:
    Status("nope")
except ValueError:
    print("invalid value")

# 9. Iteration order = declaration order
print([m.value for m in Status])

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