Define NotANumber as a subclass of ValueError when using class-based
exceptions.
When raising NotANumber, pass the string that failed as the exception
value.
diff --git a/Lib/fpformat.py b/Lib/fpformat.py
index 8ddd73c..a9c405e 100644
--- a/Lib/fpformat.py
+++ b/Lib/fpformat.py
@@ -21,7 +21,11 @@
# \3 fraction (empty or begins with point)
# \4 exponent part (empty or begins with 'e' or 'E')
-NotANumber = 'fpformat.NotANumber'
+try:
+ class NotANumber(ValueError):
+ pass
+except TypeError:
+ NotANumber = 'fpformat.NotANumber'
# Return (sign, intpart, fraction, expo) or raise an exception:
# sign is '+' or '-'
@@ -30,7 +34,7 @@
# expo is an integer
def extract(s):
res = decoder.match(s)
- if res is None: raise NotANumber
+ if res is None: raise NotANumber, s
sign, intpart, fraction, exppart = res.group(1,2,3,4)
if sign == '+': sign = ''
if fraction: fraction = fraction[1:]