python vs python3.X

### Comment:

For cross python, is there supposed to be a difference between the command

build: x86_64
target: aarch

```
python -c "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))"
# .cpython-38-aarch64-linux-gnu.so
```
and
```
python3.8 -c "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))"
# .cpython-38-x86_64-linux-gnu.so
```

This seems to be causing the discrepancies I am seeing in here
https://github.com/conda-forge/openimageio-feedstock/pull/88

```
cross-python_linux-aarch64 3.8 41_cpython conda-forge
```