python func to create missing dirs, recursively

ensure_dir

import os

def ensure_dir(path):
    '''
    Create missing dirs recursively unless something coincides with file, or no permissions
    :param path:desired path , to be created
    :return:True if desired path created, False if not
    '''
    if not os.path.isdir(path):
        print(path+' does not exist, creating')
        head = path
        totail = []
        while(1):
            head,tail = os.path.split(head)
            totail.append(tail)
            if os.path.isdir(head):
                print(head+' exists')
                break
            if head is None or head == '' :
                print('malformed path')
                return False
        totail.reverse()
        for t in totail:
            newdir = os.path.join(head,t)
            if os.path.isfile(newdir):
                print('file with this name exists, not creaating dir')
                return False
            try:
                os.mkdir(newdir)
            except PermissionError:
                print('permission denied for making '+str(newdir))
                return False
            head = newdir
        return True
    else:
        return True

ensure_dir('homeqwd/jqwderemy/smorb/blorb')
ensure_dir('/homeqwd/jqwderemy/smorb/blorb')
ensure_dir('/home/jeremy/smorb/blorb')