Executable .py file with shebang path to which python gives error, command not found

Question

I have a self-installed python in my user directory in a corporate UNIX SUSE computer (no sudo privilege):

which python <user>/bin/python/Python-3.6.1/python

I have an executable (chmod 777) sample.py file with this line at the top of the file:

#!<user>/bin/python/Python-3.6.1/python

I can execute the file like this:

python sample.py

But when I run it by itself I get an error:

/full/path/sample.py /full/path/sample.py: Command not found

I have no idea why it's not working. I'm discombobulated as what might be going wrong since the file is executable, the python path is correct, and the file executes if I put a python command in the front. What am I missing?

EDIT: I tried putting this on top of the file:

#!/usr/bin/env python

Now, I get this error:

: No such file or directory

I tried this to make sure my env is correct

which env /usr/bin/env

EDIT2: Yes, I can run the script fine using the shebang command like this: <user>/bin/python/Python-3.6.1/python /full/path/sample.py

Answer 1

Your file has DOS line endings (CR+LF). It works if you run python sample.py but doesn't work if you run ./sample.py. Recode the file so it has Unix line endings (pure LF at the end of every line).

Answer 2

Try using #!/usr/bin/env python as described in this post. Let the OS do the work.