title: How to get the error line number of yaml validation using cerberus?
body: <p>I am using <strong><a href="https://docs.python-cerberus.org/en/stable/" rel="nofollow noreferrer">cerberus</a></strong> for validating my yaml file against predefined schema as shown below</p>
  <pre><code>import yaml
  
  schema_text = '''
  name:
  type: string
  age:
  type: integer
  min: 10
  '''
  
  input_text = '''
  name: Little Joe                     *(Line 1)*
  age: 5                               *(Line 2)*
  '''
  
  schema_yaml = yaml.load(schema_text)
  input_yaml = yaml.load(input_text)
  v.validate(input_yaml , schema_yaml)
  
  v.errors
  **{'age': ['min value is 10']}**
  </code></pre>
  <p>When handling YAML validation errors, instead of just displaying the error message to the user, it would be super helpful to display the line number(s) of the validation error as well so the user can figure out what's going on.</p>
  <ul>
  <li>For example :</li>
  </ul>
  <p><strong>{'age': ['min value is 10..error found at line number 2']}</strong></p>
  <p>Is there such option available in cerberus ? Any leads would be much helpful.</p>