What is your use-case for such a function? In most cases if you are
writing a script you know what symbols are defined because you have
defined them all statically somewhere, so there's no need to
programmatically get a list of them.
Aaron Meurer
On Mon, Jun 23, 2025 at 9:14 AM Stephen Learmonth
<stephen.j.learmo...@gmail.com> wrote:
>
> Thanks Krishnav,
>
> It would have been really useful if Sympy just had a function like
> list_symbols() oir something from the start.
>
> It''s such a basic thing to want to be able to do!
>
> Stephen
>
> On Monday, 23 June 2025 at 16:00:38 UTC+1 bajoria...@gmail.com wrote:
>>
>> Hi Stephen,
>>
>> If you want to list all sympy symbols that you have created in a Python
>> script, one straightforward way is to use Python’s built-in globals() to
>> scan the current namespace and check for instances of sympy.Symbol.
>>
>> Here's a simple example to illustrate:
>>
>> >>> from sympy import Symbol
>> >>> from sympy.abc import a, b, c
>> >>> x = Symbol('x')
>> >>> y = Symbol('y')
>> >>> z = 3 # this is not a SymPy symbol
>> >>> symbols_used = [name for name, obj in globals().items() if
>> >>> isinstance(obj, Symbol)]
>> >>> print("Symbols used :", symbols_used)
>>
>> This would output:
>>
>> Symbols used : ['a', 'b', 'c', 'x', 'y']
>>
>> But do let me know if you are looking for something more specific. Happy to
>> help further!
>>
>> Best regards,
>>
>> Krishnav Bajoria.
>>
>>
>> On Mon, Jun 23, 2025 at 8:07 PM Stephen Learmonth <stephen.j...@gmail.com>
>> wrote:
>>>
>>> How do I list ALL sympy symbols created in a Python script?
>>>
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