I have a module which I'm going to distribute as standalone app. The module has the following structure:
$ tree -L 2 ./
./
├── mymodule
│ ├── __main__.py
│ ├── fun.py
└── mymodule.pyz
mymodule/__main__.py contains next lines:
#!/usr/bin/env python
import argparse
import sys
import os.path
from mymodule.fun import Fun
def main():
sys.stdout.write('main is running')
Fun().run()
if __name__ == '__main__':
main()
mymodule/fun.py contains next lines:
#!/usr/bin/env python
import sys
class Fun:
"""FUN"""
def __init__(self):
pass
def run(self):
sys.stdout.write("fun")
If I run module using $ python -m mymodule the output is
main is runningfun
But if I create a standalone app using $ python -m zipapp -p "/usr/bin/evn python" mymodule and run it $ python mymodule.pyz I got error
Traceback (most recent call last):
File "/Users/igork/.pyenv/versions/3.6.4/lib/python3.6/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "/Users/igork/.pyenv/versions/3.6.4/lib/python3.6/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "mymodule.pyz/__main__.py", line 6, in <module>
ModuleNotFoundError: No module named 'mymodule'
What is wrong with import?
UPD: sys.path output
$ python -m mymodule
['', '/Users/igork/.pyenv/versions/3.6.4/lib/python36.zip', '/Users/igork/.pyenv/versions/3.6.4/lib/python3.6', '/Users/igork/.pyenv/versions/3.6.4/lib/python3.6/lib-dynload', '/Users/igork/.local/lib/python3.6/site-packages', '/Users/igork/.pyenv/versions/3.6.4/lib/python3.6/site-packages']
$ python mymodule.pyz
['mymodule.pyz', '/Users/igork/.pyenv/versions/3.6.4/lib/python36.zip', '/Users/igork/.pyenv/versions/3.6.4/lib/python3.6', '/Users/igork/.pyenv/versions/3.6.4/lib/python3.6/lib-dynload', '/Users/igork/.local/lib/python3.6/site-packages', '/Users/igork/.pyenv/versions/3.6.4/lib/python3.6/site-packages']
First of all I run the app using wrong command, the correct is:
$ python mymodule
To create single file app and run it I need to use:
$ python -m zipapp -p "/usr/bin/evn python" mymodule
$ python mymodule.pyz
To run unit tests I need to use:
$ python -m unittest
But unit tests were failing because of error:
======================================================================
ERROR: test_fun (unittest.loader._FailedTest)
----------------------------------------------------------------------
ImportError: Failed to import test module: test_fun
Traceback (most recent call last):
File "/Users/igork/.pyenv/versions/3.6.4/lib/python3.6/unittest/loader.py", line 153, in loadTestsFromName
module = __import__(module_name)
File "/Users/igork/developer/github/python/testzipapp/tests/test_fun.py", line 2, in <module>
from mymodule.fun import Fun
File "/Users/igork/developer/github/python/testzipapp/mymodule/fun.py", line 8, in <module>
from bar import Bar
ModuleNotFoundError: No module named 'bar'
----------------------------------------------------------------------
Ran 1 test in 0.000s
FAILED (errors=1)
To fix the error I added next lines to tests/__init__.py file:
import sys
sys.path.append('mymodule')
To summarize: the structure of the project I use is:
testzipapp $ tree -L 2
.
├── create-pyz.sh
├── mymodule
│ ├── __main__.py
│ ├── bar.py
│ ├── fun.py
├── mymodule.pyz
└── tests
├── __init__.py
├── test_fun.py
file tests/test_fun.py is:
import unittest
from mymodule.fun import Fun
class TestFunImports(unittest.TestCase):
def test_fun_run(self):
s = Fun()
s.run()
self.assertEqual(2+2,4)
file mymodule/__main__.py is:
#!/usr/bin/env python
import sys
from fun import Fun
def main():
sys.stdout.write('main is running ')
Fun().run()
if __name__ == '__main__':
main()