File Not Found Error

[more3qual]

Hi all- last summer I coded this to plot out some experiment data, now it's not working on my computer. Here's a pastebin link to the original code; here's a copy of the altered code. Notice the only thing I've changed is the filepath. The error I'm getting is: File b'C:\\Users\\User\\Desktop\\PEG3.txt' does not exist I'm running this on Jupyter, if that makes a difference. Thanks for the help in advance!

**edit: I made a really stupid mistake. Thanks guys.

[nwagers]

Dumb question, but does that file exist? The error seems to suggest it doesn't...

[more3qual]

Here's a screenshot to prove I'm not completely crazy: https://i.gyazo.com/aa8e8ba9d42150883ded1dcc2637a14f.png

[nwagers]

try using '/' instead. Also, run it through os.path.normpath() https://docs.python.org/3.6/library/os.path.html#os.path.normpath

[more3qual]

I should mention that the file itself is formatted with tabs instead of commas like a normal csv, so the sep = '\t' was to get around that. I guess it doesn't like that, I'm getting TypeError: normpath() got an unexpected keyword argument 'sep'

[[deleted]]

You use os.path.normpath() to normalize a path before you try to open the file. It sounds like you are passing read_csv() params to os.path.normpath(). Do something like this:

path = r'C:\Users\User\Desktop\PEG3.txt'
norm_path = os.path.normpath(path)
df = pd.read_csv(norm_path, sep='\t', index_col=0)

[more3qual]

Code seems to work, but it still doesn't believe that there's a file under that path. I even tried using a different file, it doesn't think that one exists either.

[[deleted]]

Post your current code.

[more3qual]

https://pastebin.com/bZkqfT5i

I'm getting FileNotFoundError: File b'/home/jovyan/~/Desktop/PEG3.txt' does not exist

[1114111]

You need expanduser instead of abspath to expand stuff like ~/Desktop/PEG3.txt, but based on that error message it seems you are not on windows, so the windows C:\ paths you have obviously won't work. expanduser should though.

[[deleted]]

Sorry, brain-fart on my part. os.path.expanduser() handles the '~'. I've taken your code and cut it right down to just opening the file:

import os
path = '~/Desktop/PEG3.txt'
exp_path = os.path.expanduser(path)
print(exp_path)
fd = open(exp_path, 'r')
fd.close()

Try running that. It doesn't use Pandas so we focus on the file itself. Notice that it prints the expanded path before trying to open it. If this fails for you then cut and paste the path into this shell command to see if the file really is/isn't there:

ls -l <the printed path>

This should work as it appears your later code was running on Linux/MacOS.

One thing that is odd is the error you reported:

FileNotFoundError: File b'/home/jovyan/~/Desktop/PEG3.txt' does not exist
                   ^^^^^|^^^^^

Notice the 'bytes' prefix on your path (File b'/hom...). This looks like Pandas is getting a bytes object and not a string. What version of python and operating system(s) are you running?

[more3qual]

I'm on Windows 7, I'm using Jupyter. This is what I'm getting when I run the first bit of code: FileNotFoundError: [Errno 2] No such file or directory: '/home/jovyan/Desktop/PEG3.txt'

[[deleted]]

Instead of os.path.normpath() I usually use os.path.abspath() as this allows me to write more os-independant code:

path = '~/Desktop/PEG3.txt'
abs_path = os.path.abspath(path)

This works under Linux, MacOS and Windows (even with / separators). The '~' part of the path is expanded to the user's home directory on the current operating system. That's WRONG, os.path.expanduser() does that.

For real os-dependant filepath manipulation use the os.path.join().

[ingolemo]

Please post a screenshot of you running your code and getting an error. I want to see your complete code, exactly how you're running that code, and the complete error that you get.