On Fri, Mar 8, 2013 at 7:03 AM, Julien Rioux <notifications@github.com>wrote:

> In sympy/crypto/crypto.py:
>
> > @@ -0,0 +1,1240 @@
> > +"""
> > +Classical ciphers and LFSRs
> > +"""
> > +
> > +def alphabet_of_cipher(symbols = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"):
> > +    """
> > +    Returns the list of characters in the string input defining the alphabet.
> > +
> > +    Notes
> > +    =====
> > +
> > +    First, some basic definitions.
> > +
> > +    A {\it substitution cipher} is a method of encryption by which
> > +    ``units'' (not necessarily characters) of plaintext are replaced with
>
> The problem is your use of backticks as if this was TeX---it is not.
>

I don't have any back-ticks in the version I thought I committed.
Nor does {\it ...} occur in that version.


> —
> Reply to this email directly or view it on GitHub<https://github.com/sympy/sympy/pull/1854/files#r3296388>
> .
>