Pycharm "__file__ is not defined"

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Permanently deleted user
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I'm having a possibly noob problem.

I have a python script that I'm running in scientific mode. When I run a cell where it is supposed to print(__file__). it gives the following error.

Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/IPython/core/interactiveshell.py", line 3331, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "<ipython-input-3-2ee247ea65df>", line 1, in <module>
out = OutputTag('dataload', __file__)
NameError: name '__file__' is not defined

 

However, when I right click the script file and run the whole thing, this error disappears, but I'm getting other strange problems.

It can't find any of my files to read. For example I have a file in :

ProjectFolder/Data/data.csv

and I'm reading it using:

pd.read_csv("Data/data.csv").

I need to change it to 

pd.read_csv("../Data/data.csv").

 

But when doing so it breaks now when I run it by right clicking on the file and running the whole thing.

 

I'm sure it's some problem with how I have things configured.

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Andrey Resler
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>I have a python script that I'm running in scientific mode. When I run a cell where it is supposed to print(__file__). it gives the following error.

Did you execute all the above cells before this cell? If this doesn't help, please provide code sample.

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Permanently deleted user
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yes, I made sure to execute the above code.

 

The code sample is just

#%%
import pandas as pd
#%%
print(__file__)
#%%
data = pd.read_csv('Data/data.csv')

 

The project structure is that this python file is in Project/Chapter1/chapter1.py

the csv is in Project/Data/data.csv

 

When I right click on the file name tab at the top of the window and choose run chapter1, the print statement works, but the load data gives an error. I can fix that error by making changing it to data=pd.read_csv('../Data/data.csv')

However, running the code cell by cell by control enter, or by clicking the little green play button by the cell, the print statement gives an error saying "__file__ is not defined", but the original load works fine (without the ../)

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Andrey Resler
Created

The __file__ attribute is set automatically when you run the file, but it's not set when you run interactively, as the case with cell-based execution.

>I can fix that error by making changing it to data=pd.read_csv('../Data/data.csv')

This has likely to do with working directory in your run/debug configuration. Make sure the working directory is the same as your script path.

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