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Description:

fnsafe 0.0.1.post1

fnsafe
The fnsafe library provides a decorator to
make your functions not raising errors. Instead
you are forced to handle the error.
The design is inspired by rust's
Option and
Result
enums.
While the class's name is Result, it provides
most of the functionality from rust's Option enum
instead of rust's Result enum.
pip install fnsafe

import fnsafe

@fnsafe.makesafe
def divide(a, b, /):
return a / b

result = divide(10, 0)
# Normally, this would raise an error since we're
# dividing through zero. The decorator turns the
# return value into a `Result` object.

print(result.unwrap())
# If the calculation succeded, it will be printed,
# otherwise it will throw an exception. However we
# can provide a default value:

print(result.unwrap_or(42))
import time
print(result.unwrap_or_else(lambda: time.time_ns()))

# Checking if a function succeded can be done by
# calling one of the `is_*` methods:
print(f"{result.is_none() = }")
print(f"{result.is_some() = }")
print(f"{result.is_some_and(lambda x: x % 2 == 0) = }")

# ... and much more feautures ...