inconsistent behavior for jumpscale python installation

[Hamdy]

The following code works fine on my host machine (no jumpscale) python 3.6.7

Python 3.6.7 (default, Oct 22 2018, 11:32:17) 
Type 'copyright', 'credits' or 'license' for more information
IPython 7.5.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: def add(a, b): 
   ...:     return a + b 
   ...:                                                                                              

In [2]: import inspect                                                                               

In [3]: inspect.getsource(add)                                                                       
Out[3]: 'def add(a, b):\n    return a + b\n'

The same code does not work on jumpscale on python3, ptpython , nor kosmos

JSX> import inspect                                                                                  
JSX> def add(a, b): 
   2     return a + b                                                                                
JSX> inspect.getsource(add)                                                                          
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3.6/inspect.py", line 973, in getsource
    lines, lnum = getsourcelines(object)
  File "/usr/lib/python3.6/inspect.py", line 955, in getsourcelines
    lines, lnum = findsource(object)
  File "/usr/lib/python3.6/inspect.py", line 786, in findsource
    raise OSError('could not get source code')
OSError: could not get source code

could not get source code

why this is important? because it affects calling j.servers.myjobs.schedule from kosmos

JSX> def add(a, b):return a + b                                                                      
JSX> j.servers.myjobs.schedule(add, 1,2)Thu 22 09:27:33 InstallTools.py      -1688 - execute                            : execute:whoami
                                        Thu 22 09:27:33 InstallTools.py      -1688 - execute                            : execute:cat /proc/1/cgroup
JSX> j.servers.myjobs.schedule(add, 1,2)                                                             
executing method add with *args (1, 2) and **kwargs {} 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/sandbox/lib/jumpscale/DigitalMe/servers/myjobs/MyJobs.py", line 384, in schedule
    code = inspect.getsource(method)
  File "/usr/lib/python3.6/inspect.py", line 973, in getsource
    lines, lnum = getsourcelines(object)
  File "/usr/lib/python3.6/inspect.py", line 955, in getsourcelines
    lines, lnum = findsource(object)
  File "/usr/lib/python3.6/inspect.py", line 786, in findsource
    raise OSError('could not get source code')
OSError: could not get source code

could not get source code