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Add cache decorator for function result memoization #2191

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Add cache decorator for function result memoization #2191

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6e03813
Add cache decorator for function result memoization
Petliuk Apr 12, 2026
2e837ed
Fix cache decorator typing for flake8 compliance
Petliuk Apr 12, 2026
ebbb2aa
Fix missing newline at end of file
Petliuk Apr 12, 2026
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17 changes: 14 additions & 3 deletions app/main.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,17 @@
from typing import Callable
from typing import Callable, Any


def cache(func: Callable) -> Callable:
# Write your code here
pass
storage = {}

def wrapper(*args: Any) -> Any:
if args in storage:
print("Getting from cache")
return storage[args]

print("Calculating new result")
result = func(*args)
storage[args] = result
return result

return wrapper
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@mateacademy-ai-mentor mateacademy-ai-mentor Apr 12, 2026

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The repository previously reported flake8 W292 (no newline at end of file) for app/main.py. The file still appears to end without a trailing newline. Please add a newline after the last line (return wrapper) so there's exactly one blank line at the end of the file, then save, commit, and push.

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