Re: [sympy] Is piece of code in StrPrinter ever reachable?

[Oscar Benjamin]

On Sat, 13 Feb 2021 at 12:34, Paul Royik  wrote:
>
> In StrPrinter there is
> def emptyPrinter(self, expr):
> if isinstance(expr, str):
> return expr
> elif isinstance(expr, Basic):
> return repr(expr)
> else:
> return str(expr)
>
> Is `return repr(expr)` reachable if `StrPrinter` defines `_print_Basic` that 
> prints all `Basic` objects?

Non-Basic objects can also be printed using the printers. They just
need to inherit Printable (which is a superclass of Basic).


Oscar

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[sympy] Is piece of code in StrPrinter ever reachable?

[Paul Royik]

In StrPrinter there is 
def emptyPrinter(self, expr):
if isinstance(expr, str):
return expr
elif isinstance(expr, Basic):
return repr(expr)
else:
return str(expr)

Is `return repr(expr)` reachable if `StrPrinter` defines `_print_Basic` 
that prints all `Basic` objects? 

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