Pytest on cygwin doesn't find files

[leavens]

When I run pytest from the cygwin shell, I get output like:

/home/leavens/temp/class$ pytest
============================= test session starts =============================
platform win32 -- Python 3.6.0, pytest-3.0.5, py-1.4.32, pluggy-0.4.0
rootdir: C:\cygwin64\home\leavens\temp\class, inifile:

======================== no tests ran in 0.01 seconds =========================
ERROR: file not found:

But in this directory, things work fine if I run it from the Windows command shell:

c:\cygwin64\home\leavens\temp\class>pytest
============================= test session starts =============================
platform win32 -- Python 3.6.0, pytest-3.0.5, py-1.4.32, pluggy-0.4.0
rootdir: c:\cygwin64\home\leavens\temp\class, inifile:
collected 1 items

test_multiply.py .

========================== 1 passed in 0.04 seconds ===========================

Back in cygwin, if I run pytest -v it seems to think there is an '\r' specified as an implicit argument:

/home/leavens/temp/class$ pytest -v
usage: pytest [options] [file_or_dir] [file_or_dir] [...]
pytest: error: argument -v/--verbose: ignored explicit argument '\r'

To me this indicates some kind of error in the command line parsing on cygwin. When I run pytest -v from the Windows cmd shell I get the expected result:

C:\cygwin64\home\leavens\temp\class>pytest -v
============================= test session starts =============================
platform win32 -- Python 3.6.0, pytest-3.0.5, py-1.4.32, pluggy-0.4.0 -- c:\user
s\leave\appdata\local\programs\python\python36-32\python.exe
cachedir: .cache
rootdir: C:\cygwin64\home\leavens\temp\class, inifile:
collected 1 items

test_multiply.py::test_multiply PASSED

========================== 1 passed in 0.03 seconds ===========================

Back in cygwin, I have a similar problem with pytest -h:

/home/leavens/temp/class$ pytest -h
usage: pytest [options] [file_or_dir] [file_or_dir] [...]
pytest: error: argument -h/--help: ignored explicit argument '\r'
/home/leavens/temp/class$

Again this behaves as expected (showing the help info) from the Windows cmd shell.

To me all of this points to some configuration or parsing difference between the command lines on cygwin and the Windows cmd shell. This makes pytest virtually unusable on cygwin for me.

The following is the output of "pip list" (on cygwin, with the same output from the Windows cmd shell):

/home/leavens/temp/class$ pip list
DEPRECATION: The default format will switch to columns in the future. You can us
e --format=(legacy|columns) (or define a format=(legacy|columns) in your pip.con
f under the [list] section) to disable this warning.
colorama (0.3.7)
pip (9.0.1)
py (1.4.32)
pytest (3.0.5)
setuptools (28.8.0)

I'm using pytest 3.0.5 under Python 3.6 and Windows 10

I'm attaching a zip of the files in my directory:
files.zip
multiply.py and test_multiply.py.

[leavens]

I found that the problem was my shell script to call pytest didn't have Unix line endings (instead it had DOS line endings). Once I fixed my shell script, all is well and the problem reported goes away. Sorry!