Fails to regex match a mapping with integer keys

[terricain]

Environment

• Python version: 3.8.0
• PyKwalify version: 1.7.0

Tried to validate a mapping key with a regex but the mapping key is an integer.

If there is a better way to do this let me know. I think you should either quote the keys, or as you are trying to regex them, stringify them before regexing

Steps to Reproduce

1. pykwalify -s schema.yaml -d data.yaml

Schema

type: map
mapping:
  test:
    type: map
    mapping:
      regex;(.+):
        type: str

Data

test:
  1: test
  2: test2

Expected Behavior

Validation passed

Observed Behavior

Got exception

Traceback (most recent call last):                                                                                                                                                                           
  File "/home/terry/.virtualenv/ecs_v2/bin/pykwalify", line 10, in <module>                                                                                                                                  
    sys.exit(cli_entrypoint())                                                                                                                                                                               
  File "/home/terry/.virtualenv/ecs_v2/lib/python3.8/site-packages/pykwalify/cli.py", line 95, in cli_entrypoint                                                                                             
    run(parse_cli())                                                                                                                                                                                         
  File "/home/terry/.virtualenv/ecs_v2/lib/python3.8/site-packages/pykwalify/cli.py", line 82, in run                                                                                                        
    c.validate()                                                                                                                                                                                             
  File "/home/terry/.virtualenv/ecs_v2/lib/python3.8/site-packages/pykwalify/core.py", line 155, in validate                                                                                                 
    self._start_validate(self.source)                                                                                                                                                                        
  File "/home/terry/.virtualenv/ecs_v2/lib/python3.8/site-packages/pykwalify/core.py", line 202, in _start_validate                                                                                          
    self._validate(value, root_rule, path, done)                                                                                                                                                             
  File "/home/terry/.virtualenv/ecs_v2/lib/python3.8/site-packages/pykwalify/core.py", line 236, in _validate                                                                                                
    self._validate_mapping(value, rule, path, done=None)                                                                                                                                                     
  File "/home/terry/.virtualenv/ecs_v2/lib/python3.8/site-packages/pykwalify/core.py", line 570, in _validate_mapping                                                                                        
    self._validate(v, r, u"{0}/{1}".format(path, k), done)                                                                                                                                                   
  File "/home/terry/.virtualenv/ecs_v2/lib/python3.8/site-packages/pykwalify/core.py", line 236, in _validate                                                                                                
    self._validate_mapping(value, rule, path, done=None)                                                                                                                                                     
  File "/home/terry/.virtualenv/ecs_v2/lib/python3.8/site-packages/pykwalify/core.py", line 544, in _validate_mapping                                                                                        
    is_present = any([re.search(required_regex, v) for v in value])                                                                                                                                          
  File "/home/terry/.virtualenv/ecs_v2/lib/python3.8/site-packages/pykwalify/core.py", line 544, in <listcomp>                                                                                               
    is_present = any([re.search(required_regex, v) for v in value])                                                                                                                                          
  File "/usr/local/lib/python3.8/re.py", line 199, in search                                                                                                                                                 
    return _compile(pattern, flags).search(string)                                                                                                                                                           
TypeError: expected string or bytes-like object   

Is because the list comprehension here https://github.com/Grokzen/pykwalify/blob/master/pykwalify/core.py#L578 - is trying to run a regex search on a non-string value.

Could be fixed by stringifying the value inside the list comp

is_present = any([re.search(required_regex, str(v)) for v in value])

I can make a PR if your happy with this solution

[Tanoti]

+1 for this, we've hit the same problem