Synnefo » ./kamaki

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def filter_out(d, prefix, exactMatch = False):

    """@return a dict that contains the entries of d that are NOT prefixed with prefic

    """

    if exactMatch:

        return {key:d[key] for key in d if not key.lower() == prefix.lower()}

    return {key:d[key] for key in d if not key.lower().startswith(prefix.lower())}

def filter_in(d, prefix, exactMatch = False):

    """@return a dict that contains only the entries of d that are prefixed with prefix

    """

    if exactMatch:

        return {key:d[key] for key in d if key.lower() == prefix.lower()}

    return {key:d[key] for key in d if key.lower().startswith(prefix.lower())}

def prefix_keys(d, prefix):

    """@return a sallow copy of d with all its keys prefixed with prefix

    """

    return {prefix+key:d[key] for key in d.keys()}

def path4url(*args):

    """@return a string with all args in the form /arg1/arg2/...

       @param args must be strings

    """

    path = ''

    for arg in args:

        path = path + '/' + unicode(arg)

    return path

def params4url(params):

    """@return a string with all params in the form ?key1=val1&key2=val2&...

            e.g. input

                {'key1':'val1', 'key2':None, 'key3':'val3'}

            will return

                ?key1=val1&key2&key3=val3

       @param should be a dict.

            Use params['somekey']=None for params that will apear without 

            a value at the final string

    """

    assert(type(params) is dict)

    result = ''

    dlmtr = '?'

    for name in params:

        result = result + dlmtr + name

        result = result + '=' + params[name] if params[name] is not None else result

        dlmtr = '&'

    return result