I am trying to read in a database containing lines of numbers (in string
format) and convert each of these numbers to Rational.
For example
'1.2 3 4 5/6 7 8.2'
becomes
[6/5, 3, 4, 5/6, 7, 41/5]
I wrote the below small utility function that takes in a string s and
converts it to rational if possible. The problem is that I feel it's too
slow when having to apply to a large database. Is there a way to speed up
the process ?
def str2rat(s):
try:
return Rational(s)
except TypeError:
pass
try:
return Rational(RealNumber(s))
except TypeError:
print 'W: cannot convert %s to rational' %s
return None
Thanks
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