Python networkx.parse_gml函数代码示例

 def test_data_types(self):
     data = [True, False, 10 ** 20, -2e33, "'", '"&&&""',
             [{(b'\xfd',): '\x7f', unichr(0x4444): (1, 2)}, (2, "3")]]
     try:
         data.append(unichr(0x14444))  # fails under IronPython
     except ValueError:
         data.append(unichr(0x1444))
     try:
         data.append(literal_eval('{2.3j, 1 - 2.3j, ()}'))  # fails under Python 2.7
     except ValueError:
         data.append([2.3j, 1 - 2.3j, ()])
     G = nx.Graph()
     G.name = data
     G.graph['data'] = data
     G.add_node(0, int=-1, data=dict(data=data))
     G.add_edge(0, 0, float=-2.5, data=data)
     gml = '\n'.join(nx.generate_gml(G, stringizer=literal_stringizer))
     G = nx.parse_gml(gml, destringizer=literal_destringizer)
     assert_equal(data, G.name)
     assert_equal({'name': data, unicode('data'): data}, G.graph)
     assert_equal(list(G.nodes(data=True)),
                  [(0, dict(int=-1, data=dict(data=data)))])
     assert_equal(list(G.edges(data=True)), [(0, 0, dict(float=-2.5, data=data))])
     G = nx.Graph()
     G.graph['data'] = 'frozenset([1, 2, 3])'
     G = nx.parse_gml(nx.generate_gml(G), destringizer=literal_eval)
     assert_equal(G.graph['data'], 'frozenset([1, 2, 3])')

    def test_label_kwarg(self):
        G = nx.parse_gml(self.simple_data, label='id')
        assert_equals(sorted(G.nodes), [1, 2, 3])
        labels = [G.nodes[n]['label'] for n in sorted(G.nodes)]
        assert_equals(labels, ['Node 1', 'Node 2', 'Node 3'])

        G = nx.parse_gml(self.simple_data, label=None)
        assert_equals(sorted(G.nodes), [1, 2, 3])
        labels = [G.nodes[n]['label'] for n in sorted(G.nodes)]
        assert_equals(labels, ['Node 1', 'Node 2', 'Node 3'])

def main():
    global G
    slave_ip = "172.31.13.227"
    slave_port = 8200
    slave = servernode(slave_ip,slave_port)
    slave.register_function(updateMin)
    slave.start()
    

    master_ip = "172.31.13.224"
    master_port = 8100
    url = "http://{}:{}".format(master_ip, master_port)
    master = xmlrpclib.ServerProxy(url,verbose =True)
    try:
        strGraph = master.getWholeGraph()
        G = nx.parse_gml(strGraph)
        print "Made it"
        x = master.getGraph()

        while (x != None):
            print "in While"
            minTour(G,x)    
            print "First subgraph complete"
            x = master.getGraph
        slave.stop_server()
    except KeyboardInterrupt:
        print "Blah"
        slave.stop_server()

    def test_graph_types(self):
        for directed in [None, False, True]:
            for multigraph in [None, False, True]:
                gml = 'graph ['
                if directed is not None:
                    gml += ' directed ' + str(int(directed))
                if multigraph is not None:
                    gml += ' multigraph ' + str(int(multigraph))
                gml += ' node [ id 0 label "0" ]'
                gml += ' edge [ source 0 target 0 ]'
                gml += ' ]'
                G = nx.parse_gml(gml)
                assert_equal(bool(directed), G.is_directed())
                assert_equal(bool(multigraph), G.is_multigraph())
                gml = 'graph [\n'
                if directed is True:
                    gml += '  directed 1\n'
                if multigraph is True:
                    gml += '  multigraph 1\n'
                gml += """  node [
    id 0
    label "0"
  ]
  edge [
    source 0
    target 0
"""
                if multigraph:
                    gml += '    key 0\n'
                gml += '  ]\n]'
                assert_equal(gml, '\n'.join(nx.generate_gml(G)))

 def test_read_gml(self):
     (fd, fname) = tempfile.mkstemp()
     fh = open(fname, 'w')
     fh.write(self.simple_data)
     fh.close()
     Gin = nx.read_gml(fname, label='label')
     G = nx.parse_gml(self.simple_data, label='label')
     assert_equals(sorted(G.nodes(data=True)), sorted(Gin.nodes(data=True)))
     assert_equals(sorted(G.edges(data=True)), sorted(Gin.edges(data=True)))
     os.close(fd)
     os.unlink(fname)

 def test_parse_gml(self):
     G=networkx.parse_gml(self.simple_data)
     assert_equals(sorted(G.nodes()),\
                       ['Node 1', 'Node 2', 'Node 3'])
     assert_equals( [e for e in sorted(G.edges(data=True))],\
                        [('Node 1', 'Node 2', 
                          {'color': {'line': 'blue', 'thickness': 3},
                           'label': 'Edge from node 1 to node 2'}), 
                         ('Node 2', 'Node 3', 
                          {'label': 'Edge from node 2 to node 3'}), 
                         ('Node 3', 'Node 1', {'label': 'Edge from node 3 to node 1'})])

    def test_escape_unescape(self):
        gml = """graph [
  name "&"䑄��&unknown;"
]"""
        G = nx.parse_gml(gml)
        assert_equal(
            '&"\x0f' + unichr(0x4444) + '��&unknown;',
            G.name)
        gml = '\n'.join(nx.generate_gml(G))
        assert_equal("""graph [
  name "&"䑄��&unknown;"
]""", gml)

    def test_read_gml(self):
        import os, tempfile

        (fd, fname) = tempfile.mkstemp()
        fh = open(fname, "w")
        fh.write(self.simple_data)
        fh.close()
        Gin = networkx.read_gml(fname, relabel=True)
        G = networkx.parse_gml(self.simple_data, relabel=True)
        assert_equals(sorted(G.nodes(data=True)), sorted(Gin.nodes(data=True)))
        assert_equals(sorted(G.edges(data=True)), sorted(Gin.edges(data=True)))
        os.close(fd)
        os.unlink(fname)

def _parse_networkmodel(path):
    network_slices = dict()

    zf = zipfile.ZipFile(path, 'r')

    for file in [f for f in zf.namelist() if f.endswith(".gml")]:
        m = re.search('(?!\-)(\d+)\.gml', file)
        file_number = m.group(1)
        log.debug("Parsing GML file %s:  file number %s", file, file_number)

        gml = zf.read(file)
        slice = nx.parse_gml(gml)
        #log.debug("slice nodes: %s", '|'.join(sorted(slice.nodes())))
        network_slices[int(file_number)] = slice

    return network_slices

    def test_parse_gml(self):
        G = networkx.parse_gml(self.simple_data, relabel=True)
        assert_equals(sorted(G.nodes()), ["Node 1", "Node 2", "Node 3"])
        assert_equals(
            [e for e in sorted(G.edges())], [("Node 1", "Node 2"), ("Node 2", "Node 3"), ("Node 3", "Node 1")]
        )

        assert_equals(
            [e for e in sorted(G.edges(data=True))],
            [
                (
                    "Node 1",
                    "Node 2",
                    {"color": {"line": "blue", "thickness": 3}, "label": "Edge from node 1 to node 2"},
                ),
                ("Node 2", "Node 3", {"label": "Edge from node 2 to node 3"}),
                ("Node 3", "Node 1", {"label": "Edge from node 3 to node 1"}),
            ],
        )

def parse_gml_and_normalize_floats(slice_lines):
    """
    Read a slice GML line by line, looking for scientific notation
    and when found, normalize it using the Decimal library.
    Then pass the lines of text to networkx parse_gml to
    parse it.  This is a drop-in replacement for read_gml()
    """
    exp_regex = compile(r"(\d+(\.\d+)?)[Ee](\+|-)(\d+)")

    input_lines = []


    for line in slice_lines:
        result = exp_regex.search(line)
        if result is not None:
            matched_value = result.group(0)
            replacement = str(remove_exponent(Decimal(float(matched_value))))
            line = line.replace(matched_value, replacement)
            #log.debug("Replacing %s with %s", matched_value, replacement)

        input_lines.append(line)

    return nx.parse_gml(input_lines)

    def test_parse_gml_cytoscape_bug(self):
        # example from issue #321, originally #324 in trac
        cytoscape_example = """
Creator "Cytoscape"
Version 1.0
graph   [
    node    [
        root_index  -3
        id  -3
        graphics    [
            x   -96.0
            y   -67.0
            w   40.0
            h   40.0
            fill    "#ff9999"
            type    "ellipse"
            outline "#666666"
            outline_width   1.5
        ]
        label   "node2"
    ]
    node    [
        root_index  -2
        id  -2
        graphics    [
            x   63.0
            y   37.0
            w   40.0
            h   40.0
            fill    "#ff9999"
            type    "ellipse"
            outline "#666666"
            outline_width   1.5
        ]
        label   "node1"
    ]
    node    [
        root_index  -1
        id  -1
        graphics    [
            x   -31.0
            y   -17.0
            w   40.0
            h   40.0
            fill    "#ff9999"
            type    "ellipse"
            outline "#666666"
            outline_width   1.5
        ]
        label   "node0"
    ]
    edge    [
        root_index  -2
        target  -2
        source  -1
        graphics    [
            width   1.5
            fill    "#0000ff"
            type    "line"
            Line    [
            ]
            source_arrow    0
            target_arrow    3
        ]
        label   "DirectedEdge"
    ]
    edge    [
        root_index  -1
        target  -1
        source  -3
        graphics    [
            width   1.5
            fill    "#0000ff"
            type    "line"
            Line    [
            ]
            source_arrow    0
            target_arrow    3
        ]
        label   "DirectedEdge"
    ]
]
"""
        nx.parse_gml(cytoscape_example)

    def test_exceptions(self):
        assert_raises(ValueError, literal_destringizer, '(')
        assert_raises(ValueError, literal_destringizer, 'frozenset([1, 2, 3])')
        assert_raises(ValueError, literal_destringizer, literal_destringizer)
        assert_raises(ValueError, literal_stringizer, frozenset([1, 2, 3]))
        assert_raises(ValueError, literal_stringizer, literal_stringizer)
        with tempfile.TemporaryFile() as f:
            f.write(codecs.BOM_UTF8 + 'graph[]'.encode('ascii'))
            f.seek(0)
            assert_raises(nx.NetworkXError, nx.read_gml, f)

        def assert_parse_error(gml):
            assert_raises(nx.NetworkXError, nx.parse_gml, gml)

        assert_parse_error(['graph [\n\n', unicode(']')])
        assert_parse_error('')
        assert_parse_error('Creator ""')
        assert_parse_error('0')
        assert_parse_error('graph ]')
        assert_parse_error('graph [ 1 ]')
        assert_parse_error('graph [ 1.E+2 ]')
        assert_parse_error('graph [ "A" ]')
        assert_parse_error('graph [ ] graph ]')
        assert_parse_error('graph [ ] graph [ ]')
        assert_parse_error('graph [ data [1, 2, 3] ]')
        assert_parse_error('graph [ node [ ] ]')
        assert_parse_error('graph [ node [ id 0 ] ]')
        nx.parse_gml('graph [ node [ id "a" ] ]', label='id')
        assert_parse_error(
            'graph [ node [ id 0 label 0 ] node [ id 0 label 1 ] ]')
        assert_parse_error(
            'graph [ node [ id 0 label 0 ] node [ id 1 label 0 ] ]')
        assert_parse_error('graph [ node [ id 0 label 0 ] edge [ ] ]')
        assert_parse_error('graph [ node [ id 0 label 0 ] edge [ source 0 ] ]')
        nx.parse_gml(
            'graph [edge [ source 0 target 0 ] node [ id 0 label 0 ] ]')
        assert_parse_error(
            'graph [ node [ id 0 label 0 ] edge [ source 1 target 0 ] ]')
        assert_parse_error(
            'graph [ node [ id 0 label 0 ] edge [ source 0 target 1 ] ]')
        assert_parse_error(
            'graph [ node [ id 0 label 0 ] node [ id 1 label 1 ] '
            'edge [ source 0 target 1 ] edge [ source 1 target 0 ] ]')
        nx.parse_gml(
            'graph [ node [ id 0 label 0 ] node [ id 1 label 1 ] '
            'edge [ source 0 target 1 ] edge [ source 1 target 0 ] '
            'directed 1 ]')
        nx.parse_gml(
            'graph [ node [ id 0 label 0 ] node [ id 1 label 1 ] '
            'edge [ source 0 target 1 ] edge [ source 0 target 1 ]'
            'multigraph 1 ]')
        nx.parse_gml(
            'graph [ node [ id 0 label 0 ] node [ id 1 label 1 ] '
            'edge [ source 0 target 1 key 0 ] edge [ source 0 target 1 ]'
            'multigraph 1 ]')
        assert_parse_error(
            'graph [ node [ id 0 label 0 ] node [ id 1 label 1 ] '
            'edge [ source 0 target 1 key 0 ] edge [ source 0 target 1 key 0 ]'
            'multigraph 1 ]')
        nx.parse_gml(
            'graph [ node [ id 0 label 0 ] node [ id 1 label 1 ] '
            'edge [ source 0 target 1 key 0 ] edge [ source 1 target 0 key 0 ]'
            'directed 1 multigraph 1 ]')

        def assert_generate_error(*args, **kwargs):
            assert_raises(nx.NetworkXError,
                          lambda: list(nx.generate_gml(*args, **kwargs)))

        G = nx.Graph()
        G.graph[3] = 3
        assert_generate_error(G)
        G = nx.Graph()
        G.graph['3'] = 3
        assert_generate_error(G)
        G = nx.Graph()
        G.graph['data'] = frozenset([1, 2, 3])
        assert_generate_error(G, stringizer=literal_stringizer)
        G = nx.Graph()
        G.graph['data'] = []
        assert_generate_error(G)
        assert_generate_error(G, stringizer=len)

 def test_name(self):
     G = nx.parse_gml('graph [ name "x" node [ id 0 label "x" ] ]')
     assert_equal('x', G.graph['name'])
     G = nx.parse_gml('graph [ node [ id 0 label "x" ] ]')
     assert_equal('', G.name)
     assert_not_in('name', G.graph)

import matplotlib.pyplot as plt
import networkx as nx

url = "http://www-personal.umich.edu/~mejn/netdata/football.zip"

sock = urllib.urlopen(url)  # open URL
s = io.BytesIO(sock.read())  # read into BytesIO "file"
sock.close()

zf = zipfile.ZipFile(s)  # zipfile object
txt = zf.read('football.txt').decode()  # read info file
gml = zf.read('football.gml').decode()  # read gml data
# throw away bogus first line with # from mejn files
gml = gml.split('\n')[1:]
G = nx.parse_gml(gml)  # parse gml data

print(txt)
# print degree for each team - number of games
for n, d in G.degree():
    print('%s %d' % (n, d))

options = {
    'node_color': 'black',
    'node_size': 50,
    'line_color': 'grey',
    'linewidths': 0,
    'width': 0.1,
}
nx.draw(G, **options)
plt.show()