PYTHON CODING

def string_only(f):

def wrap(x): return f(x) if isinstance(x, str) else "Invalid"

return wrap

@string_only

def echo(s): return s + s

print(echo(5))

[Running] python3 -u "/Users/name/test/test47.py"

Invalid

[Done] exited with code=0 in 0.051 seconds

#PythonCoding #VSC

Python Coding.