Try using parse_expr from sympy.parsing.sympy_parser. Aaron Meurer
On Tue, Apr 22, 2014 at 3:04 PM, Amit Saha <[email protected]> wrote: > Hello, > > Consider the following: > >>>> expr=input('Enter a mathematical expression: ') > > Enter a mathematical expression: x**2 + 3x + x**3 + 2x > >>>> expr = sympify(expr) > > Traceback (most recent call last): > > File "<pyshell#146>", line 1, in <module> > > expr = sympify(expr) > > File "/usr/lib/python3.3/site-packages/sympy/core/sympify.py", line > 180, in sympify > > raise SympifyError('could not parse %r' % a) > > sympy.core.sympify.SympifyError: SympifyError: "could not parse 'x**2 > + 3x + x**3 + 2x'" > > > Is it possible to get a more specific error message here? Like which > of the terms are invalid, for example? > > Thanks, > Amit. > > > -- > http://echorand.me > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/CANODV3kj5wSJPX4NhtGTkHVmNzn7fe4XSwnFo95PFJ2pTZ8r6w%40mail.gmail.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAKgW%3D6%2B6gU5sBGoCXEcjJ%3DeXLpr5%3DyDjGxykbi9YZqOz3Rvp%3Dg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
