find file not knowing the extension

[Leon79]

You could use this module form the standard lib: https://docs.python.org/2/library/imghdr.html

Thank you but it looks that I already need to know the extension in this way, I know the file name but not the extension, then I cannot use it.

I'm also trying to create if, in this way:

                    {% set path = '/static/images/images/' + recipe._id|string + '.png' %}
                    {% if (os.path.isfile(path)) %}
                            <p>File EXISTS</p>
                    {% else %}
                            <p>File DO NOT EXISTS</p>
                    {% endif %}

But I keep receiving the following error:

jinja2.exceptions.UndefinedError
jinja2.exceptions.UndefinedError: 'os' is undefined

os is defined in the main.py file, maybe I must use a different syntax, but I'm a beginner, I have no idea how it needs to be done.