How can I disable ExtDeprecationWarning for external libs in flask
<p>When I run my script, I get this output:</p>

<pre><code>/app/venv/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.sqlalchemy is deprecated, use flask_sqlalchemy instead.
  .format(x=modname), ExtDeprecationWarning
/app/venv/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.marshmallow is deprecated, use flask_marshmallow instead.
  .format(x=modname), ExtDeprecationWarning
/app/venv/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.cache is deprecated, use flask_cache instead.
  .format(x=modname), ExtDeprecationWarning
/app/venv/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.restful is deprecated, use flask_restful instead.
  .format(x=modname), ExtDeprecationWarning
/app/venv/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.restful.fields is deprecated, use flask_restful.fields instead.
  .format(x=modname), ExtDeprecationWarning
/app/venv/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.restful.reqparse is deprecated, use flask_restful.reqparse instead.
  .format(x=modname), ExtDeprecationWarning
/app/venv/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.restplus is deprecated, use flask_restplus instead.
  .format(x=modname), ExtDeprecationWarning
/app/venv/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.restful.representations is deprecated, use flask_restful.representations instead.
  .format(x=modname), ExtDeprecationWarning
/app/venv/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.script is deprecated, use flask_script instead.
  .format(x=modname), ExtDeprecationWarning
/app/venv/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.migrate is deprecated, use flask_migrate instead.
  .format(x=modname), ExtDeprecationWarning
</code></pre>

<p>I don't really care about this, because external libs are causing this. I can't update these libs as I don't own them and I see for several there are pull requests pending.</p>

<p>How can I get some peace and quiet?</p>