def visualize(G, settings, filename="dependencies", no_graphviz=False):
    """
    Uses networkX to draw a graphviz dot file either (a) calls the
    graphviz command "dot" to turn it into a SVG and remove the
    dotfile (default), or (b) if no_graphviz is True, just output
    the graphviz dot file

    Args:
        a NetworkX DiGraph
        the settings dictionary
        a filename (a default is provided
        a flag indicating whether graphviz should *not* be called

    Returns:
        0 if everything worked
        will cause fatal error on failure
    """
    error = settings["error"]
    if no_graphviz:
        write_dot_file(G, filename)
        return 0
    write_dot_file(G, "tempdot")
    renderer = "svg"
    if re.search("\.jpg$", filename, re.IGNORECASE):
        renderer = "jpg"
    elif re.search("\.jpeg$", filename, re.IGNORECASE):
        renderer = "jpg"
    elif re.search("\.svg$", filename, re.IGNORECASE):
        renderer = "svg"
    elif re.search("\.png$", filename, re.IGNORECASE):
        renderer = "png"
    elif re.search("\.gif$", filename, re.IGNORECASE):
        renderer = "gif"
    elif re.search("\.ps$", filename, re.IGNORECASE):
        renderer = "ps"
    elif re.search("\.pdf$", filename, re.IGNORECASE):
        renderer = "pdf"
    else:
        renderer = "svg"
        filename += ".svg"
    command = "dot -T{} tempdot -o {}".format(renderer, filename)
    p = Popen(command, shell=True)
    p.communicate()
    if p.returncode:
        errmes = "Either graphviz is not installed, or its not on PATH"
        os.remove("tempdot")
        error(errmes)
        sys.exit(1)
    os.remove("tempdot")
    return 0
def visualize(G, settings, filename="dependencies", no_graphviz=False):
    """
    Uses networkX to draw a graphviz dot file either (a) calls the
    graphviz command "dot" to turn it into a SVG and remove the
    dotfile (default), or (b) if no_graphviz is True, just output
    the graphviz dot file

    Args:
        a NetworkX DiGraph
        the settings dictionary
        a filename (a default is provided
        a flag indicating whether graphviz should *not* be called

    Returns:
        0 if everything worked
        will cause fatal error on failure
    """
    error = settings["error"]
    if no_graphviz:
        write_dot_file(G, filename)
        return 0
    write_dot_file(G, "tempdot")
    renderer = "svg"
    if re.search("\.jpg$", filename, re.IGNORECASE):
        renderer = "jpg"
    elif re.search("\.jpeg$", filename, re.IGNORECASE):
        renderer = "jpg"
    elif re.search("\.svg$", filename, re.IGNORECASE):
        renderer = "svg"
    elif re.search("\.png$", filename, re.IGNORECASE):
        renderer = "png"
    elif re.search("\.gif$", filename, re.IGNORECASE):
        renderer = "gif"
    elif re.search("\.ps$", filename, re.IGNORECASE):
        renderer = "ps"
    elif re.search("\.pdf$", filename, re.IGNORECASE):
        renderer = "pdf"
    else:
        renderer = "svg"
        filename += ".svg"
    command = "dot -T{} tempdot -o {}".format(renderer, filename)
    p = Popen(command, shell=True)
    p.communicate()
    if p.returncode:
        errmes = "Either graphviz is not installed, or its not on PATH"
        os.remove("tempdot")
        error(errmes)
        sys.exit(1)
    os.remove("tempdot")
    return 0
def visualize ( G , settings , filename = "dependencies" , no_graphviz = False ) : error = settings [ "error" ] if no_graphviz : write_dot_file ( G , filename ) return 0 write_dot_file ( G , "tempdot" ) renderer = "svg" if re . search ( "\.jpg$" , filename , re . IGNORECASE ) : renderer = "jpg" elif re . search ( "\.jpeg$" , filename , re . IGNORECASE ) : renderer = "jpg" elif re . search ( "\.svg$" , filename , re . IGNORECASE ) : renderer = "svg" elif re . search ( "\.png$" , filename , re . IGNORECASE ) : renderer = "png" elif re . search ( "\.gif$" , filename , re . IGNORECASE ) : renderer = "gif" elif re . search ( "\.ps$" , filename , re . IGNORECASE ) : renderer = "ps" elif re . search ( "\.pdf$" , filename , re . IGNORECASE ) : renderer = "pdf" else : renderer = "svg" filename += ".svg" command = "dot -T{} tempdot -o {}" . format ( renderer , filename ) p = Popen ( command , shell = True ) p . communicate ( ) if p . returncode : errmes = "Either graphviz is not installed, or its not on PATH" os . remove ( "tempdot" ) error ( errmes ) sys . exit ( 1 ) os . remove ( "tempdot" ) return 0
Uses networkX to draw a graphviz dot file either (a) calls the
    graphviz command "dot" to turn it into a SVG and remove the
    dotfile (default), or (b) if no_graphviz is True, just output
    the graphviz dot file

    Args:
        a NetworkX DiGraph
        the settings dictionary
        a filename (a default is provided
        a flag indicating whether graphviz should *not* be called

    Returns:
        0 if everything worked
        will cause fatal error on failure
Uses networkX to draw a graphviz dot file either ( a ) calls the graphviz command dot to turn it into a SVG and remove the dotfile ( default ) or ( b ) if no_graphviz is True just output the graphviz dot file