Error in documentation: location of `constants.py`

[Adarsh Kishore]

Hi everyone,

I am running Sage v9.6.beta4 on Ubuntu 20.04 LTS. I was going through the online documentation of Sage and I came across this line on https://doc.sagemath.org/html/en/developer/coding_in_python.html

```

Here is an example of the _latex_ and _repr_ functions for the Pi class. It is from the file SAGE_ROOT/src/sage/functions/constants.py

```

However, there is no constants.py in the mentioned directory. Instead, I found it on my Sage in

```

SAGE_ROOT/src/sage/symbolic/constants.py

```

I think the documentation should be updated to reflect this.

[Adarsh Kishore]

Apart from this, the documentation is outdated in several other places also. For example,  on the same website, for an example on free modules it is mentioned that

```

the following is from the file SAGE_ROOT/sage/sage/modules/free_module_element.pyx

```

However the same is actually now at

```
SAGE_ROOT/src/sage/modules/free_module_element.pyx

```

Also, while explaining the `_matrix_` method, an example is given as

However, this class is now at

```

SAG_ROOT/src/sage/graphs/generic_graph.py

```

and I believe several other inconsistencies would be existing.

[Eric Gourgoulhon]

Hi,

Thanks for spotting these errors in the documentation. Would you open a ticket to fix them?

See https://doc.sagemath.org/html/en/developer/trac.html

Best wishes,

Eric.

[Adarsh Kishore]

Certainly, I will read up on the process of opening a new ticket (this is my first time :)

[Adarsh Kishore]

Hi,

I have opened https://trac.sagemath.org/ticket/33571 for this purpose. I have also pushed the changes on my branch as I had pointed out. Anything else I can help in?