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Has anybody faced a FileNotFoundError in JupyterLab (https://jupyter.org/try-jupyter/lab/) when trying to read a .csv file? The file was uploaded in the same directory. I have used a CopyPath option to be sure that the path is correct. Still not working. Any suggestions on how can I fix this?

here is a snapshot of a simple code and an error

MaxiP
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    This is an issue with the demo environment which runs entirely in the browser. There are workarounds described in: https://github.com/jupyterlite/jupyterlite/discussions/91 – krassowski Apr 20 '22 at 09:44
  • Also https://github.com/jupyterlite/jupyterlite/issues/119 and https://github.com/jupyterlite/jupyterlite/issues/199 – krassowski Apr 20 '22 at 09:46
  • Finally there is this experimental extension which bypasses the upload step altogether: https://github.com/jupyterlab-contrib/jupyterlab-filesystem-access – krassowski Apr 20 '22 at 09:49
  • @krassowski thanks a lot! I will dive into these resources and hope will find a workaround. – MaxiP Apr 20 '22 at 10:52
  • @MaxiP Also, if you want a full Python backed kernel experience like Try Jupyter used to offer, just go use the 'launch binder' badge at [the MyBinder JupyterLab demo example page](https://github.com/binder-examples/jupyterlab). – Wayne Apr 20 '22 at 19:09

2 Answers2

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This is unlikely to be an error with Jupyter.

Make sure that the ReadFile.ipynb and theFile.csv are in the same directory. If they are not, use a relative import.

enter image description here

If this still doesn't work, try the following synthax. This is independent of the path you provide.

pd.read_csv(r'C:\Users\aiLab\Desktop\example.csv')

Here r is a special character and means raw string. So prefix it to your string literal.

https://www.journaldev.com/23598/python-raw-string:

Python raw string is created by prefixing a string literal with ‘r’ or ‘R’. Python raw string treats backslash () as a literal character. This is useful when we want to have a string that contains backslash and don’t want it to be treated as an escape character.

See: pandas.read_csv FileNotFoundError: File b'\xe2\x80\xaa<etc>' despite correct path

Also, make sure that you don't have unwittingly copied an invisible character.

rperrone
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  • Have tried both options. Files are in the same directory. Still not working...( Suppose that it is a problem with some settings of JupyterLab (web environment). I have tried to read a file in replit web environment and everything worked fine... Anyway, thank you for your help. – MaxiP Apr 20 '22 at 06:50
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I ran into the same problem. Make sure your working directory is the same as your notebook and .csv file. Check this by running pwd. You can run ls to get the list of files in the working directory. If this helps you find the problem, try shutting down the running kernel completely and attaching a new one. This will change the working directory.

Cubuc
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