Streamlit is just a waste of time

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1

my app is woking well on local host but when i try to deploy it . it not even able to read csv file. Have been trying to solve it for a whole day.
this the error am getting

[21:12:43] 🐍 Python dependencies were installed from /app/visulization_of_kenya_voters/requirements.txt using pip.

[21:12:43] 📦 Processed dependencies!

  Stopping...



Collecting usage statistics. To deactivate, set browser.gatherUsageStats to False.









[21:12:46] 🔄 Updated app!

2023-11-23 21:12:47.388 Uncaught app exception

Traceback (most recent call last):

  File "/home/appuser/venv/lib/python3.9/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 534, in _run_script

    exec(code, module.__dict__)

  File "/app/visulization_of_kenya_voters/myapp.py", line 9, in <module>

    df=pd.read_csv(r"https://github.com/YonQwon/visulization_of_kenya_voters/blob/main/data/voters.csv", low_memory=False)

  File "/home/appuser/venv/lib/python3.9/site-packages/pandas/io/parsers/readers.py", line 912, in read_csv

    return _read(filepath_or_buffer, kwds)

  File "/home/appuser/venv/lib/python3.9/site-packages/pandas/io/parsers/readers.py", line 583, in _read

    return parser.read(nrows)

  File "/home/appuser/venv/lib/python3.9/site-packages/pandas/io/parsers/readers.py", line 1704, in read

    ) = self._engine.read(  # type: ignore[attr-defined]

  File "/home/appuser/venv/lib/python3.9/site-packages/pandas/io/parsers/c_parser_wrapper.py", line 239, in read

    data = self._reader.read(nrows)

  File "pandas/_libs/parsers.pyx", line 796, in pandas._libs.parsers.TextReader.read

  File "pandas/_libs/parsers.pyx", line 884, in pandas._libs.parsers.TextReader._read_rows

  File "pandas/_libs/parsers.pyx", line 861, in pandas._libs.parsers.TextReader._check_tokenize_status

  File "pandas/_libs/parsers.pyx", line 2029, in pandas._libs.parsers.raise_parser_error

pandas.errors.ParserError: Error tokenizing data. C error: Expected 1 fields in line 33, saw 8



2023-11-23 21:12:47.553 Uncaught app exception

Traceback (most recent call last):

  File "/home/appuser/venv/lib/python3.9/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 534, in _run_script

    exec(code, module.__dict__)

  File "/app/visulization_of_kenya_voters/myapp.py", line 9, in <module>

    df=pd.read_csv(r"https://github.com/YonQwon/visulization_of_kenya_voters/blob/main/data/voters.csv", low_memory=False)

  File "/home/appuser/venv/lib/python3.9/site-packages/pandas/io/parsers/readers.py", line 912, in read_csv

    return _read(filepath_or_buffer, kwds)

  File "/home/appuser/venv/lib/python3.9/site-packages/pandas/io/parsers/readers.py", line 583, in _read

    return parser.read(nrows)

  File "/home/appuser/venv/lib/python3.9/site-packages/pandas/io/parsers/readers.py", line 1704, in read

    ) = self._engine.read(  # type: ignore[attr-defined]

  File "/home/appuser/venv/lib/python3.9/site-packages/pandas/io/parsers/c_parser_wrapper.py", line 239, in read

    data = self._reader.read(nrows)

  File "pandas/_libs/parsers.pyx", line 796, in pandas._libs.parsers.TextReader.read

  File "pandas/_libs/parsers.pyx", line 884, in pandas._libs.parsers.TextReader._read_rows

  File "pandas/_libs/parsers.pyx", line 861, in pandas._libs.parsers.TextReader._check_tokenize_status

  File "pandas/_libs/parsers.pyx", line 2029, in pandas._libs.parsers.raise_parser_error

pandas.errors.ParserError: Error tokenizing data. C error: Expected 1 fields in line 33, saw 8
2

Rafiki - Please check out the guidelines on how to post an effective question here and update your post to help the community answer your question.

2 Likes
3

This the link to the code ([GitHub - YonQwon/visulization_of_kenya_voters]
and here is the trace back error

4

That code cannot work in any hosting, local or remote, because the url doesn’t point to a csv file. It is not streamlit’s fault that you don’t know how to get your data.

You can just read the file from the host file system.

df = pd.read_csv("data/voters.csv")
1 Like
5

Hi @samy_migwi

I understand the frustration when debugging the app, however as @Goyo had pointed out the error lies in the file loading line in the code.

On Line 9, it seems that you’d like to read your CSV from your GitHub repo:

df=pd.read_csv("https://github.com/YonQwon/visulization_of_kenya_voters/blob/main/data/voters.csv")

The above URL (https://github.com/YonQwon/visulization_of_kenya_voters/blob/main/data/voters.csv) used as the input argument to your pd.read_csv() method is not in a format that would be compatible with pd.read_csv().

Instead, please use https://raw.githubusercontent.com/YonQwon/visulization_of_kenya_voters/main/data/voters.csv instead such that it becomes:

df=pd.read_csv("https://raw.githubusercontent.com/YonQwon/visulization_of_kenya_voters/main/data/voters.csv")

Hope this helps!

6

Thank you so much for the support. I like the streamlite community. Thank you sir.

1 Like
7

Glad to hear that it worked out @samy_migwi

8

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