os.errno doesn't exists anymore in Python 3.7 #1253
Description
Informations
- Qiskit Terra version: 0.6.1
- Python version: 3.7.0 − Jupyter Notebook
- Operating system: Ubuntu 16.04.1
What is the current behavior?
I used circuit_drawer() on a Jupyter notebook without having latex installed on my computer, but instead of getting the message WARNING: Unable to compile latex. Is pdflatex installed?, I got the following error:
~/miniconda3/envs/qiskit/lib/python3.7/site-packages/qiskit/tools/visualization/_circuit_visualization.py in latex_circuit_drawer(circuit, basis, scale, filename, style)
292 check=True)
293 except OSError as e:
--> 294 if e.errno == os.errno.ENOENT:
295 logger.warning('WARNING: Unable to compile latex. '
296 'Is `pdflatex` installed? '
AttributeError: module 'os' has no attribute 'errno'
Suggested solutions
Replacing os.errno by just errno (after having imported it). See for instance this thread on the Python bug tracker