[issue18659] test_precision in test_format.py is not executed and has unused variable

[Vajrasky Kok]

Vajrasky Kok added the comment:

Let me help you to debug this issue.

ethan@amiau:~/Documents/code/python/cpython$ cat /tmp/a.py
import sys

INT_MAX = sys.maxsize
f = 1.2
format(f, ".%sf" % (INT_MAX + 1))
ethan@amiau:~/Documents/code/python/cpython$ ./python /tmp/a.py
Traceback (most recent call last):
  File "/tmp/a.py", line 5, in <module>
    format(f, ".%sf" % (INT_MAX + 1))
ValueError: Too many decimal digits in format string
ethan@amiau:~/Documents/code/python/cpython$ cat /tmp/b.py
import sys

INT_MAX = 2147483647
f = 1.2
format(f, ".%sf" % (INT_MAX + 1))
ethan@amiau:~/Documents/code/python/cpython$ ./python /tmp/b.py
Traceback (most recent call last):
  File "/tmp/b.py", line 5, in <module>
    format(f, ".%sf" % (INT_MAX + 1))
ValueError: precision too big

My question is whether we should have different exception message for these two 
cases?

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<http://bugs.python.org/issue18659>
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