Used to work on my previous setup reran now and it broke at the cache line

Summary

<streamlit.DeltaGenerator.DeltaGenerator object at 0x000002973C6457C8>
>>> @st.cache(persist=True)
... def load_data(nrows):
...     data = pd.read_csv(r'C:\Users\HendriC\Desktop\LocationTransaction2.csv', nrows=nrows)    
...     lowercase = lambda x: str(x).lower()
...     data.rename(lowercase, axis="columns", inplace=True)
...     data = data.rename(columns={'latitude': 'lat', 'longitude': 'lon'})
...     data[DATE_TIME] = pd.to_datetime(data[DATE_TIME])
...     return data
... 
>>> data = load_data(100000)
Traceback (most recent call last):
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\hashing.py", line 444, in _to_bytes
    if self._file_should_be_hashed(obj.__code__.co_filename):
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\hashing.py", line 333, in _file_should_be_hashed
    filepath, self._get_main_script_directory()
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\hashing.py", line 553, in _get_main_script_directory
    main_path = __main__.__file__
AttributeError: module '__main__' has no attribute '__file__'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\caching.py", line 464, in wrapped_func
    return get_or_set_cache()
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\caching.py", line 430, in get_or_set_cache
    code_hasher.update(func)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\hashing.py", line 280, in update
    self._update(self.hasher, obj, context)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\hashing.py", line 323, in _update
    b = self.to_bytes(obj, context)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\hashing.py", line 307, in to_bytes
    b = self._to_bytes(obj, context)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\hashing.py", line 500, in _to_bytes
    raise InternalHashError(msg).with_traceback(e.__traceback__)
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\hashing.py", line 444, in _to_bytes
    if self._file_should_be_hashed(obj.__code__.co_filename):
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\hashing.py", line 333, in _file_should_be_hashed
    filepath, self._get_main_script_directory()
  File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\streamlit\hashing.py", line 553, in _get_main_script_directory
    main_path = __main__.__file__
streamlit.errors.InternalHashError: module '__main__' has no attribute '__file__'

Usually this means you found a Streamlit bug! If you think that’s the case, please [file a bug report here.]

Steps to reproduce

@st.cache(persist=True)
def load_data(nrows):
    data = pd.read_csv(r'C:\Users\HendriC\Desktop\LocationTransaction2.csv', nrows=nrows)    
    lowercase = lambda x: str(x).lower()
    data.rename(lowercase, axis="columns", inplace=True)
    data = data.rename(columns={'latitude': 'lat', 'longitude': 'lon'})
    data[DATE_TIME] = pd.to_datetime(data[DATE_TIME])
    return data

What are the steps we should take to reproduce the bug:

1. Go to ‘…’
2. Click on ‘…’
3. Scroll down to ‘…’

Expected behavior:

Explain what you expect to happen when you go through the steps above, assuming there were no bugs.

Actual behavior:

Explain the buggy behavior you experience when you go through the steps above. If applicable, add screenshots to help explain your problem.

Is this a regression?

That is, did this use to work the way you expected in the past? yes / no

Debug info

• Streamlit version: (get it with $ streamlit version)
• Python version: (get it with $ python --version)
• Using Conda? PipEnv? PyEnv? Pex?
• OS version:
• Browser version:

Additional information

If needed, add any other context about the problem here. For example, did this bug come from https://discuss.streamlit.io or another site? Link the original source here!

[ajs]

Looks like this issue has been abandoned, but we’re still seeing this… Not sure where to go.

[nthmost]

Hi all – We’re going to take another stab at this one! The issue last year was that we (well, I) was unable to reproduce this. Chances are high that I was hung up on this being a Windows issue, but it would appear with further user reports that this applies to other OSes as well.

@bh-streamlit is taking a look!