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  1. while True:
  2.     try:
  3.         valor = float(input('Height: '))
  4.         break # se chegou nessa linha é porque com certeza foi digitado um número
  5.     except ValueError: # se não digitar número válido, cai no except
  6.         print('Numbers. Try again.')
  7.  
  8. print(valor)
Success #stdin #stdout 0.02s 9284KB
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stdin
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xyz
.,;.,m;,.
123
stdout
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Height: Numbers. Try again.
Height: Numbers. Try again.
Height: 123.0
https://ideone.com/7Ah4Ap
language:
Python 3 (python  3.9.5)
created:
3 years ago
visibility:
public

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