I need to be able to input a string like this ---
L1="[3,10,15,23,25,30,3,[5]*3]"
Need the repeated values for the 5. If I don't have repeated values
your code works.
I have done some error traping for "eval". Users can not put
something like "rm".
On Sep 8, 2:38 pm, Robert Bradshaw <rober...@math.washington.edu>
wrote:
> On Sep 8, 2009, at 11:28 AM, Mikie wrote:
>
> > Here is the function
> > -------------------------------
> > def BasicStats1a(exp1):
> > v = exp1
> > v1 = eval(v);Count_=len(v1)
> > sort_v1=sorted(v1)
> > M1 =stats.mode(v1); v3=eval(str(M1[0])); v4=eval(str(M1[1]))
> > R1 = stats.mean(v1);R2 = stats.median(v1)
> > R3 = stats.std(v1)
> > var_=R3**2
> > return R1,R2,R3,Count_,sort_v1,var_,v3,v4
> > ------------------------------------------------------------
> > You can see the eval's. Is there a security problem with sage_eval?
>
> Yes.
>
> > The string comes from a form.
>
> You should look up string processing in Python, I think that would
> help a lot in much of what you're trying to do here. For example,
>
> sage: s = "1,2,3,4,100"
> sage: [ZZ(x) for x in s.split(',')]
> [1, 2, 3, 4, 100]
>
> This is fast, safe, and more clear than the above.
>
> - Robert
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