'_NamespacePath' object has no attribute 'sort' Problem

[Muhammad Hashim Malik]

AoA

I am a newbie to TurboGears. I tried to install the example project using 20minute wiki, but I am facing following problem: I followed following procedure: My Python version is 3.6.3 on Windows 10

1. Created a virtual environment

D:\PWS>python -m venv VE  

2. Activate virtual enviroment VE

D:\PWS>CD ./VE/Scripts

D:\PWS/VE/Scripts>activate

3. Installed TurboGears2

(VE) D:\PWS/VE/Scripts> CD  /PWS

(VE) D:\PWS>pip install tg.devtools

4. Created a project test1

(VE) D:\PWS>gearbox quickstart test1

5. Setting up project 

(VE) D:\PWS>CD test1                                   && run without error    

(VE) D:\PWS>python setup.py develop       && run without error

(VE) D:\PWS>gearbox setup-app                 && generated error

Traceback (most recent call last):

  File "C:\Users\malnu\AppData\Local\Programs\Python\Python36\lib\runpy.py", line 193, in _run_module_as_main

    "__main__", mod_spec)

  File "C:\Users\malnu\AppData\Local\Programs\Python\Python36\lib\runpy.py", line 85, in _run_code

    exec(code, run_globals)

  File "D:\PWS\VE\Scripts\gearbox.exe\__main__.py", line 5, in <module>

  File "d:\pws\ve\lib\site-packages\gearbox\main.py", line 5, in <module>

    import sys, os, pkg_resources, logging, warnings

  File "d:\pws\ve\lib\site-packages\pkg_resources\__init__.py", line 3017, in <module>

    @_call_aside

  File "d:\pws\ve\lib\site-packages\pkg_resources\__init__.py", line 3003, in _call_aside

    f(*args, **kwargs)

  File "d:\pws\ve\lib\site-packages\pkg_resources\__init__.py", line 3045, in _initialize_master_working_set

    dist.activate(replace=False)

  File "d:\pws\ve\lib\site-packages\pkg_resources\__init__.py", line 2577, in activate

    declare_namespace(pkg)

  File "d:\pws\ve\lib\site-packages\pkg_resources\__init__.py", line 2151, in declare_namespace

    _handle_ns(packageName, path_item)

  File "d:\pws\ve\lib\site-packages\pkg_resources\__init__.py", line 2091, in _handle_ns

    _rebuild_mod_path(path, packageName, module)

  File "d:\pws\ve\lib\site-packages\pkg_resources\__init__.py", line 2120, in _rebuild_mod_path

    orig_path.sort(key=position_in_sys_path)

AttributeError: '_NamespacePath' object has no attribute 'sort'

Please guide how to resolve this issue.

[Alessandro Molina]

Try to upgrade pip and setuptools

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