visualize_urls.py generates malformed content

[Mtillmann]

dot will trip on the generated output

digraph sitemap {
        graph [fontcolor=black fontname=Helvetica fontsize=18 label="www.example.org"]
        node [color=black fillcolor="#dbdddd" fontcolor=black fontname=Helvetica fontsize=14 style=filled]
        edge [arrowhead=open color=black fontcolor=black fontname=Helvetica fontsize=12]
rankdir=LRsize="40"     node [shape=rectangle]
        "www.example.org" [label="www.example.org (495)"]

with this error:

graphviz.backend.execute.CalledProcessError: Command '[PosixPath('dot'), '-Kdot', '-Tpdf', '-O', 'sitemap_graph_5_layer']' returned non-zero exit status 1. [stderr: b"Error: sitemap_graph_5_layer: syntax error in line 5 near '='\n"]

After making 2 lines out of line 5 and adding a space ,dot will accept the data:

        rankdir=LR size="40"
        node [shape=rectangle]

Ubuntu, python 3.10.6, graphviz 2.43.0

[chriswhong]

The fix is to add \n to the end of each string on line 97:

    f.body.extend(['rankdir=LR\n', 'size="%s"\n' % size])

[Mtillmann]

I wasn't sure if it's a general issue or related to my system. Apparently it's broken on any setup. Thanks for your fix, I'll make a PR