[Python] Python Folium map not displaying when certain column is read from CSV?

Discussão em 'Python' iniciado por Stack, Fevereiro 10, 2025.

  1. Stack

    Stack Membro Participativo

    I'm trying to create a Folium map for internal marketing purposes for my company. The map loads fine the way it is. However, when I want a certain column to display in the popup text the map fails to load. Here's what the code looks like:

    #read csv and create dataframe
    df = pd.read_csv(sheet_url, delimiter=",", header=0, encoding='latin-1', engine='python')
    #turn dataframe from dict into a list
    csv = [list(x) for x in df.values]
    #organize data into array
    locations = []
    for location in csv:
    coords = [location[0], location[1]]
    try:
    locations.append({'company' : location[2], 'country' : location[3], 'products' : location[3], 'potential' : location[4], 'method' : location[13], 'note' : location[14], 'hover': f"{location[3]}<br>{location[2]}", 'click': f"<a href={location[9]}>Website</a><br>{location[13]}<br>{location[14]}", 'coordinates' : coords})
    except:
    print("failed because of some error")


    The problem occurs when I try to add location[14] to the popup, but it does not throw an error here. Nor does it throw an error with the iteration to add the markers to the map:

    for x in locations:
    try:
    if x['potential'] == "Current Customer":
    folium.Marker(location = (x['coordinates']), popup = x['click'], tooltip = x['hover'], icon=folium.Icon(color='green')).add_to(current_cluster)
    else:
    folium.Marker(location = (x['coordinates']), popup = x['click'], tooltip = x['hover'], icon=folium.Icon(color='red')).add_to(potential_cluster)
    except:
    print("failed")


    The column labeled 'note' is the one I'm having problems with.

    I've tried so far:

    1. Using ' '.join(map(str, location[14])), while looping through the csv. The map loads, the text is in the popup, but separated by spaces (L i k e t h i s).
    2. Changing the delimiter from , to anything else, but it creates a parser error. There are a lot of different characters used in each row, but I'm not sure the delimiter is the issue.
    3. On Chrome, the debugger says Uncaught SyntaxError: Octal escape sequences are not allowed in template strings.

    I think the issue is occurring when I'm adding the markers to the map? But there are no errors thrown, just the map won't load if I include the 'notes' into the popup. Any help is appreciated, thank you.

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