ioerror, init

json_config/__init__.py

@@ -1,5 +1,22 @@
 #!/usr/bin/env python
 # coding=utf-8
+"""
+===========
+JSON Config
+===========
+A convenience utility for working with json config files.
+
+>>> import json_config
+>>> config = json_config.connect('test.json')
+>>> config['root'] = '/var/www/html'
+>>> config
+{
+  "root": "/var/www/html"
+}
+
+"""
 __author__ = 'Manu Phatak'
 __email__ = 'bionikspoon@gmail.com'
 __version__ = '0.1.0'
+
+from .configuration import connect

json_config/configuration.py

@@ -23,7 +23,12 @@ def connect(config_file_):
 
     config_file = config_file_
     config = Configuration()
-    config.update(json.load(open(config_file), object_hook=json_hook))
+
+    try:
+        config.update(json.load(open(config_file), object_hook=json_hook))
+    except IOError:
+        open(config_file, 'w').close()
+
     return config
 
 
@@ -32,6 +37,7 @@ def json_hook(obj):
     config_.update(**obj)
     return config_
 
+
 class Configuration(defaultdict, MutableMapping):
     """
     Internal class.  Handles nested dictionary recursion.
@@ -48,12 +54,13 @@ def save_config(*func_args):
 
         @wraps(func)
         def _wrapper(self, *args, **kwargs):
+
             try:
                 return func(self, *args, **kwargs)
 
             finally:
-                json.dump(config, open(config_file, 'wb'), indent=2,
-                          sort_keys=True, separators=(',', ': '))
+                json.dump(config, open(config_file, 'wb'), indent=2, sort_keys=True,
+                          separators=(',', ': '))
 
         return _wrapper
 
@@ -73,14 +80,9 @@ def __getitem__(self, key):
     def __delitem__(self, key):
         super(Configuration, self).__delitem__(key)
 
-    def __str__(self):
-        return json.dumps(self, indent=2, sort_keys=True,
-                          separators=(',', ': '))
-
+    def __repr__(self):
+        return json.dumps(self, indent=2, sort_keys=True, separators=(',', ': '))
 
-    @classmethod
-    def loads(cls, *args):
-        pass
 
     @staticmethod
     def factory():

test/test_configuration.py

@@ -38,8 +38,7 @@ def test_loads_json_file_returns_dict_like_obj(config, tmpdir):
     from json_config import configuration
 
     assert config['test'] == 'success'
-    assert configuration.config_file == tmpdir.join(
-        'sample_config.json').strpath
+    assert configuration.config_file == tmpdir.join('sample_config.json').strpath
 
 
 def test_abc_magic_methods_length():
@@ -103,3 +102,14 @@ def test_saves_on_nested_delete(config, config_file):
     del config['test']
     expected = json.load(open(config_file))
     assert expected.get('test') is None
+
+
+def test_create_new_json_file(tmpdir):
+    from json_config import configuration
+
+    config = configuration.connect(tmpdir.join('unique_file.json').strpath)
+
+    config['unique'] = 'success'
+    actual = json.load((open(tmpdir.join('unique_file.json').strpath)))
+
+    assert actual == dict(config)