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Computing with Data

elgeish
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Handling Exceptions - Part III

import math
def foo(x):
if not isinstance(x, int):
raise TypeError("arguments to foo must be integers")
if x <= 0:
raise ValueError(f"arguments to foo must be positive: {x}")
return(x + math.log(x))
try:
foo(-3) # exception triggered and program halted
foo(3) # never executed
except TypeError: # handle TypeError exceptions
print("Incorrect Type in sequence of foo() calls")
except ValueError as e: # handle ValueError exceptions
print("Non-positive value in sequence of foo() calls:")
print(e.args)
print("program resumes execution and is not terminated")
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