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show traceback in widget handlers...
show traceback in widget handlers rather than logging closes #5064

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validator.py
90 lines | 2.7 KiB | text/x-python | PythonLexer
from __future__ import print_function
#!/usr/bin/env python
# -*- coding: utf8 -*-
import argparse
import traceback
import json
from IPython.external.jsonschema import Draft3Validator, validate, ValidationError
import IPython.external.jsonpointer as jsonpointer
from IPython.utils.py3compat import iteritems
def nbvalidate(nbjson, schema='v3.withref.json', key=None,verbose=True):
v3schema = resolve_ref(json.load(open(schema,'r')))
if key :
v3schema = jsonpointer.resolve_pointer(v3schema,key)
errors = 0
v = Draft3Validator(v3schema);
for error in v.iter_errors(nbjson):
errors = errors + 1
if verbose:
print(error)
return errors
def resolve_ref(json, base=None):
"""return a json with resolved internal references
only support local reference to the same json
"""
if not base :
base = json
temp = None
if type(json) is list:
temp = [];
for item in json:
temp.append(resolve_ref(item, base=base))
elif type(json) is dict:
temp = {};
for key,value in iteritems(json):
if key == '$ref':
return resolve_ref(jsonpointer.resolve_pointer(base,value), base=base)
else :
temp[key]=resolve_ref(value, base=base)
else :
return json
return temp
def convert(namein, nameout, indent=2):
"""resolve the references of namein, save the result in nameout"""
jsn = None
with open(namein) as file :
jsn = json.load(file)
v = resolve_ref(jsn, base=jsn)
x = jsonpointer.resolve_pointer(v, '/notebook')
with open(nameout,'w') as file:
json.dump(x,file,indent=indent)
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('-s', '--schema',
type=str, default='v3.withref.json')
parser.add_argument('-k', '--key',
type=str, default='/notebook',
help='subkey to extract json schema from json file')
parser.add_argument("-v", "--verbose", action="store_true",
help="increase output verbosity")
parser.add_argument('filename',
type=str,
help="file to validate",
nargs='*',
metavar='names')
args = parser.parse_args()
for name in args.filename :
nerror = nbvalidate(json.load(open(name,'r')),
schema=args.schema,
key=args.key,
verbose=args.verbose)
if nerror is 0:
print(u"[Pass]",name)
else :
print(u"[ ]",name,'(%d)'%(nerror))
if args.verbose :
print('==================================================')