Installation on macOS

[poonlab]

Installation on macOS

[ArtPoon]

When calling sierralocal by absolute path, I run into the following issue:

is2882:sierra-local art$ /opt/local/Library/Frameworks/Python.framework/Versions/3.5/bin/sierralocal 
3.5.5 (default, Feb  5 2018, 07:16:39) 
[GCC 4.2.1 Compatible Apple LLVM 8.1.0 (clang-802.0.42)]
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.5/bin/sierralocal", line 12, in <module>
    sys.exit(main())
TypeError: 'module' object is not callable

I encountered the same problem when building sierra-local from source in Ubuntu 18.04.1.
The problem is that main is being imported as a module, so the correct call would be main.main().
Since the sierralocal script is generated by setup.py, we have to modify the latter somehow.

[ArtPoon]

Apparently the weird /opt path is expected behaviour from distutils, so we'll have to ignore that problem and require users to modify their PATH variable.

Changing main() to main.main() as above fixes the problem for macOS, but now we get this problem in Linux:

art@orolo:~/git/sierra-local$ sierralocal
3.6.5 (default, Apr  1 2018, 05:46:30) 
[GCC 7.3.0]
Traceback (most recent call last):
  File "/usr/local/bin/sierralocal", line 12, in <module>
    sys.exit(main.main())
AttributeError: 'function' object has no attribute 'main'
art@orolo:~/git/sierra-local$ cat /usr/local/bin/sierralocal 
#!/usr/bin/python3

# -*- coding: utf-8 -*-
import re
import sys

from sierralocal import main

if __name__ == '__main__':
    print(sys.version)
    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
    sys.exit(main.main())

[ArtPoon]

This is weird:

art@orolo:~/git/sierra-local$ bin/sierralocal 
3.6.5 (default, Apr  1 2018, 05:46:30) 
[GCC 7.3.0]
<function main at 0x7fb8867ead90>  # output of print(main)
Traceback (most recent call last):
  File "bin/sierralocal", line 13, in <module>
    sys.exit(main.main())
AttributeError: 'function' object has no attribute 'main'

art@orolo:~/git/sierra-local$ python3
Python 3.6.5 (default, Apr  1 2018, 05:46:30) 
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from sierralocal import main
>>> main
<module 'sierralocal.main' from '/home/art/git/sierra-local/sierralocal/main.py'>

So sierralocal called via CLI loads the function and not the module, and calling it within a Python interpreter loads the module and not the function.

[ArtPoon]

Turns out this weirdness was being caused by an older installation of sierralocal in ~/.local, which would have resulted from calling setup.py without sudo privileges. I nuked this instance and things seem back to normal. Will remove gross try..except hack from bin/sierralocal if things stay normal.