Having the same problem on OS X. This is my ‘plugins’ directory which is in
/Applications/Kicad/kicad.app/Contents/SharedSupport/scripting/plugins
-rwxr-xr-x 1 %%%%%%%%%%% admin 5636 Nov 24 08:04 FPC_(SMD_type)_footprintwizard.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 16121 Nov 24 08:04 FootprintWizardDrawingAids.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 10559 Nov 24 08:04 HelpfulFootprintWizardPlugin.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 8663 Nov 24 08:04 PadArray.py
-rwxr-xr-x 1 %%%%%%%%%%% staff 4971 Dec 27 14:28 QRCodeWizard.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 1 Nov 24 08:04 __init__.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 3734 Nov 24 08:04 bga_wizard.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 2845 Nov 24 08:04 circular_pad_array_wizard.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 8445 Nov 24 08:04 qfn_wizard.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 5285 Nov 24 08:04 qfp_wizard.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 8939 Nov 24 08:04 sdip_wizard.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 7860 Nov 24 08:04 touch_slider_wizard.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 6243 Nov 24 08:04 uss39_barcode.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 21733 Dec 27 17:21 xess_fp_wizard.py
-rwxr-xr-x 1 %%%%%%%%%%% admin 7856 Nov 24 08:04 zip_wizard.py
Passing sys.path to the Python console fails as follows;
Py 0.9.8
Python 2.7.10 (default, Oct 23 2015, 19:19:21)
[GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.59.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
Startup script executed: /Users/johnpateman/Library/Preferences/kicad/PyShell_pcbnew_startup.py
sys.path
Traceback (most recent call last):
File "<input>", line 1, in <module>
NameError: name 'sys' is not defined
However, the BGA and QFP/QFN etc wizards all work but I would quite like to try the capacitative slider & the barcode(s) as well as the Footprint Wizard from @devbisme
(New footprint wizard)