Reload a whole package structure in Python

Question

I'm working within Maya. What i need is to import a custom package and completely reload it inlcuding all subpackages and modules. Mainly because i want Maya autocompletes for me the module path while im writing. For example i have this kind of package structure

root (package)
    subpackage1 (package)
        __init__.py (module)
        a.py (module)
        b.py (module)

    subpackage2 (package)
        c.py (module)
        d.py (module)
        e.py (module)

What i did on __init__.py files is to import all submodules and one by one to reload them there

ex: root.subpackage1.__init__.py

import a
import b
reload(a)
reload(b)

This is very tedious, and thus i suppose there is a much better way to import and reload all the structure

When i import the package the first time the whole structure is load into memory.

import root
reload(root)
root.subpackage1.a.my_function()

so lets suppose now i update a.py file and add a function named my_test. I need again to reload all package structure to be able to evaluate it like this.

root.subpackage1.a.my_test()

whitout doing this...

from root.subpackage import a
reload(a)
a.my_test()

I wall everything to be reloaded when i import and reload root whats the best practice to do this? Thanks in advance.

You may want to read [ask] and [mcve]. – boardrider Nov 01 '16 at 17:43 — boardrider, Nov 01 '16 at 17:43
Anyone who can point me in the right direction on this? – Ramiro Tell Nov 24 '16 at 23:09 — Ramiro Tell, Nov 24 '16 at 23:09

Manuel Martín Bravo · Answer 1 · 2018-03-27T22:25:18.243

3

The closest thing I have found is directly based on this answer to a similar question (https://stackoverflow.com/a/1057534/7124215). I have introduced some changes for the __init__.py files of your question:

from os.path import dirname, basename, isfile
import glob

modules = glob.glob(dirname(__file__)+"/*.py")
__all__ = [ basename(f)[:-3] for f in modules if isfile(f) and not f.endswith('__init__.py')]

from . import *
for module in __all__:
    reload(module)

del dirname, basename, isfile, glob, modules

Does this help? I apologize if I have not understood your question correctly.

edited Mar 27 '18 at 22:25

answered Mar 27 '18 at 21:53

Manuel Martín Bravo

31
5

Thank you very much, its a nice way to reload all content dynamically. – Ramiro Tell Jun 14 '18 at 21:10

Reload a whole package structure in Python

1 Answers1