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Diffstat (limited to 'cloudinit/util.py')
| -rw-r--r-- | cloudinit/util.py | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/cloudinit/util.py b/cloudinit/util.py index a192091f..385f231c 100644 --- a/cloudinit/util.py +++ b/cloudinit/util.py @@ -703,6 +703,21 @@ def get_cfg_option_list(yobj, key, default=None): # get a cfg entry by its path array # for f['a']['b']: get_cfg_by_path(mycfg,('a','b')) def get_cfg_by_path(yobj, keyp, default=None): + """Return the value of the item at path C{keyp} in C{yobj}. + + example: + get_cfg_by_path({'a': {'b': {'num': 4}}}, 'a/b/num') == 4 + get_cfg_by_path({'a': {'b': {'num': 4}}}, 'c/d') == None + + @param yobj: A dictionary. + @param keyp: A path inside yobj. it can be a '/' delimited string, + or an iterable. + @param default: The default to return if the path does not exist. + @return: The value of the item at keyp." + is not found.""" + + if isinstance(keyp, six.string_types): + keyp = keyp.split("/") cur = yobj for tok in keyp: if tok not in cur: |