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  1. import decimal
  2. #確認はこれで出来る
  3. print(decimal.MAX_EMAX)
  4.  
  5. with decimal.localcontext() as ctx:
  6.     print(ctx.Emax) 
  7.     ctx.Emax = decimal.MAX_EMAX
  8.     print(ctx.Emax) #
  9.     #これを超えて設定しようとするとエラーになる
  10.     ctx.Emax = decimal.MAX_EMAX + 1
  11.     print(ctx.Emax)
Runtime error #stdin #stdout #stderr 0.18s 23684KB
comments (?)
stdin 
Standard input is empty
stdout 
999999999999999999
999999
999999999999999999
stderr 
Traceback (most recent call last):
  File "./prog.py", line 10, in <module>
    ctx.Emax = decimal.MAX_EMAX + 1
ValueError: valid range for Emax is [0, MAX_EMAX]
https://ideone.com/gt9i0u
language:
Python 3 nbc (python 3.7.3)
created:
2 years ago
visibility:
secret

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