Python networkx.write_yaml() Examples

def write_graph(self, G=None, subgraph_file=None):
        if G is None:
            G = self.context_graph
        if subgraph_file is None:
            subgraph_file = self.context_graph_file
        logging.info("Writing graph.")
        # write the graph out
        file_format = subgraph_file.split(".")[-1]
        if file_format == "graphml":
            nx.write_graphml(G, subgraph_file)
        elif file_format == "gml":
            nx.write_gml(G, subgraph_file)
        elif file_format == "gexf":
            nx.write_gexf(G, subgraph_file)
        elif file_format == "net":
            nx.write_pajek(G, subgraph_file)
        elif file_format == "yaml":
            nx.write_yaml(G, subgraph_file)
        elif file_format == "gpickle":
            nx.write_gpickle(G, subgraph_file)
        else:
            print "File format not found, writing graphml."
            nx.write_graphml(G, subgraph_file) 

def graph_generator(model, graph_param, save_path, file_name):
    graph_param[0] = int(graph_param[0])
    if model == 'ws':
        graph_param[1] = int(graph_param[1])
        graph = nx.random_graphs.connected_watts_strogatz_graph(*graph_param)
    elif model == 'er':
        graph = nx.random_graphs.erdos_renyi_graph(*graph_param)
    elif model == 'ba':
        graph_param[1] = int(graph_param[1])
        graph = nx.random_graphs.barabasi_albert_graph(*graph_param)

    if os.path.isfile(save_path + '/' + file_name + '.yaml') is True:
        print('graph loaded')
        dgraph = nx.read_yaml(save_path + '/' + file_name + '.yaml')

    else:
        dgraph = nx.DiGraph()
        dgraph.add_nodes_from(graph.nodes)
        dgraph.add_edges_from(graph.edges)

    in_node = []
    out_node = []
    for indeg, outdeg in zip(dgraph.in_degree, dgraph.out_degree):
        if indeg[1] == 0:
            in_node.append(indeg[0])
        elif outdeg[1] == 0:
            out_node.append(outdeg[0])
    # print(in_node, out_node)
    sorted = list(nx.topological_sort(dgraph))
    # nx.draw(dgraph)
    # plt.draw()
    # plt.show()

    if os.path.isdir(save_path) is False:
        os.makedirs(save_path)

    if os.path.isfile(save_path + '/' + file_name + '.yaml') is False:
        print('graph_saved')
        nx.write_yaml(dgraph, save_path + '/' + file_name + '.yaml')

    return dgraph, sorted, in_node, out_node 

def write_yaml(G, path, encoding='UTF-8', **kwds):
    """Write graph G in YAML format to path. 

    YAML is a data serialization format designed for human readability 
    and interaction with scripting languages [1]_.

    Parameters
    ----------
    G : graph
       A NetworkX graph
    path : file or string
       File or filename to write. 
       Filenames ending in .gz or .bz2 will be compressed.
    encoding: string, optional
       Specify which encoding to use when writing file.

    Examples
    --------
    >>> G=nx.path_graph(4)
    >>> nx.write_yaml(G,'test.yaml')

    References
    ----------
    .. [1] http://www.yaml.org
    """
    try:
        import yaml
    except ImportError:
        raise ImportError("write_yaml() requires PyYAML: http://pyyaml.org/")
    yaml.dump(G, path, **kwds) 

def read_yaml(path):
    """Read graph in YAML format from path.

    YAML is a data serialization format designed for human readability 
    and interaction with scripting languages [1]_.

    Parameters
    ----------
    path : file or string
       File or filename to read.  Filenames ending in .gz or .bz2 
       will be uncompressed.

    Returns
    -------
    G : NetworkX graph

    Examples
    --------
    >>> G=nx.path_graph(4)
    >>> nx.write_yaml(G,'test.yaml')
    >>> G=nx.read_yaml('test.yaml')
 
    References
    ----------
    .. [1] http://www.yaml.org

    """
    try:
        import yaml
    except ImportError:
        raise ImportError("read_yaml() requires PyYAML: http://pyyaml.org/")

    G=yaml.load(path)
    return G


# fixture for nose tests 

def assert_equal(self, G, data=False):
        (fd, fname) = tempfile.mkstemp()
        nx.write_yaml(G, fname)
        Gin = nx.read_yaml(fname);

        assert_nodes_equal(G.nodes(), Gin.nodes())
        assert_edges_equal(G.edges(data=data), Gin.edges(data=data))

        os.close(fd)
        os.unlink(fname) 

def write_yaml(G_to_be_yaml, path_for_yaml_output, **kwds):
    """Write graph G in YAML format to path. 

    YAML is a data serialization format designed for human readability 
    and interaction with scripting languages [1]_.

    Parameters
    ----------
    G : graph
       A NetworkX graph
    path : file or string
       File or filename to write. 
       Filenames ending in .gz or .bz2 will be compressed.

    Notes
    -----
    To use encoding on the output file include e.g. `encoding='utf-8'`
    in the keyword arguments.

    Examples
    --------
    >>> G=nx.path_graph(4)
    >>> nx.write_yaml(G,'test.yaml')

    References
    ----------
    .. [1] http://www.yaml.org
    """
    try:
        import yaml
    except ImportError:
        raise ImportError("write_yaml() requires PyYAML: http://pyyaml.org/")
    yaml.dump(G_to_be_yaml, path_for_yaml_output, **kwds) 

def read_yaml(path):
    """Read graph in YAML format from path.

    YAML is a data serialization format designed for human readability 
    and interaction with scripting languages [1]_.

    Parameters
    ----------
    path : file or string
       File or filename to read.  Filenames ending in .gz or .bz2 
       will be uncompressed.

    Returns
    -------
    G : NetworkX graph

    Examples
    --------
    >>> G=nx.path_graph(4)
    >>> nx.write_yaml(G,'test.yaml')
    >>> G=nx.read_yaml('test.yaml')

    References
    ----------
    .. [1] http://www.yaml.org

    """
    try:
        import yaml
    except ImportError:
        raise ImportError("read_yaml() requires PyYAML: http://pyyaml.org/")

    G = yaml.load(path, Loader=yaml.FullLoader)
    return G


# fixture for nose tests 

def assert_equal(self, G, data=False):
        (fd, fname) = tempfile.mkstemp()
        nx.write_yaml(G, fname)
        Gin = nx.read_yaml(fname)

        assert_nodes_equal(list(G), list(Gin))
        assert_edges_equal(G.edges(data=data), Gin.edges(data=data))

        os.close(fd)
        os.unlink(fname) 

def write_yaml(G, path, encoding='UTF-8', **kwds):
    """Write graph G in YAML format to path. 

    YAML is a data serialization format designed for human readability 
    and interaction with scripting languages [1]_.

    Parameters
    ----------
    G : graph
       A NetworkX graph
    path : file or string
       File or filename to write. 
       Filenames ending in .gz or .bz2 will be compressed.
    encoding: string, optional
       Specify which encoding to use when writing file.

    Examples
    --------
    >>> G=nx.path_graph(4)
    >>> nx.write_yaml(G,'test.yaml')

    References
    ----------
    .. [1] http://www.yaml.org
    """
    try:
        import yaml
    except ImportError:
        raise ImportError("write_yaml() requires PyYAML: http://pyyaml.org/")
    yaml.dump(G, path, **kwds) 

def read_yaml(path):
    """Read graph in YAML format from path.

    YAML is a data serialization format designed for human readability 
    and interaction with scripting languages [1]_.

    Parameters
    ----------
    path : file or string
       File or filename to read.  Filenames ending in .gz or .bz2 
       will be uncompressed.

    Returns
    -------
    G : NetworkX graph

    Examples
    --------
    >>> G=nx.path_graph(4)
    >>> nx.write_yaml(G,'test.yaml')
    >>> G=nx.read_yaml('test.yaml')
 
    References
    ----------
    .. [1] http://www.yaml.org

    """
    try:
        import yaml
    except ImportError:
        raise ImportError("read_yaml() requires PyYAML: http://pyyaml.org/")

    G=yaml.load(path)
    return G


# fixture for nose tests 

def assert_equal(self, G, data=False):
        (fd, fname) = tempfile.mkstemp()
        nx.write_yaml(G, fname)
        Gin = nx.read_yaml(fname)

        assert_nodes_equal(list(G), list(Gin))
        assert_edges_equal(G.edges(data=data), Gin.edges(data=data))

        os.close(fd)
        os.unlink(fname) 

def androcg_main(verbose,
                 APK,
                 classname,
                 methodname,
                 descriptor,
                 accessflag,
                 no_isolated,
                 show,
                 output):
    from androguard.core.androconf import show_logging
    from androguard.core.bytecode import FormatClassToJava
    from androguard.misc import AnalyzeAPK
    import networkx as nx
    import logging
    log = logging.getLogger("androcfg")
    if verbose:
        show_logging(logging.INFO)

    a, d, dx = AnalyzeAPK(APK)

    entry_points = map(FormatClassToJava,
                       a.get_activities() + a.get_providers() +
                       a.get_services() + a.get_receivers())
    entry_points = list(entry_points)

    log.info("Found The following entry points by search AndroidManifest.xml: "
             "{}".format(entry_points))

    CG = dx.get_call_graph(classname,
                           methodname,
                           descriptor,
                           accessflag,
                           no_isolated,
                           entry_points,
                           )

    write_methods = dict(gml=_write_gml,
                         gexf=nx.write_gexf,
                         gpickle=nx.write_gpickle,
                         graphml=nx.write_graphml,
                         yaml=nx.write_yaml,
                         net=nx.write_pajek,
                         )

    if show:
        plot(CG)
    else:
        writer = output.rsplit(".", 1)[1]
        if writer in ["bz2", "gz"]:
            writer = output.rsplit(".", 2)[1]
        if writer not in write_methods:
            print("Could not find a method to export files to {}!"
                  .format(writer))
            sys.exit(1)

        write_methods[writer](CG, output)