🚀 go-pugleaf

Zainstalowałem nową wersję Inkscape.
Podczas eksportu pliku jako DXF pojawiła się informacja:

The fantastic lxml wrapper for libxml2 is required by inkex.py and 
therefore this extension.Please download and install the latest version 
from http://cheeseshop.python.org/pypi/lxml/, or install it through your 
package manager by a command like: sudo apt-get install python-lxml

Technical details:
No module named lxml

Zainstalowałem Pythona 3.7
Pobrałem z w.w. strony lxml,
zainstalowałem


python -m pip install --upgrade pippython -m pip install --upgrade 
pippython -m pip install --upgrade pipMicrosoft Windows [Wersja 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. Wszelkie prawa zastrzeżone.

C:\Users\Robert>pip install
ERROR: You must give at least one requirement to install (see "pip help 
install"
)
You are using pip version 10.0.1, however version 18.0 is available.
You should consider upgrading via the 'python -m pip install --upgrade 
pip' comm
and.

C:\Users\Robert>pip install 
C:\Users\Robert\Downloads\lxml-4.2.4-cp37-cp37m-win_
amd64.whl
Processing c:\users\robert\downloads\lxml-4.2.4-cp37-cp37m-win_amd64.whl
Installing collected packages: lxml
Successfully installed lxml-4.2.4
You are using pip version 10.0.1, however version 18.0 is available.
You should consider upgrading via the 'python -m pip install --upgrade 
pip' comm
and.

C:\Users\Robert>pip install 
C:\Users\Robert\Downloads\lxml-4.2.4-cp37-cp37m-win_
amd64.whl
Requirement already satisfied: lxml==4.2.4 from 
file:///C:/Users/Robert/Download
s/lxml-4.2.4-cp37-cp37m-win_amd64.whl in 
c:\users\robert\appdata\local\programs\
python\python37\lib\site-packages (4.2.4)
You are using pip version 10.0.1, however version 18.0 is available.
You should consider upgrading via the 'python -m pip install --upgrade 
pip' comm
and.

C:\Users\Robert>python -m pip install --upgrade pip
Collecting pip
   Downloading 
https://files.pythonhosted.org/packages/5f/25/e52d3f31441505a5f3af
41213346e5b6c221c9e086a166f3703d2ddaf940/pip-18.0-py2.py3-none-any.whl 
(1.3MB)
     100% |████████████████████████████████| 1.3MB 754kB/s
Installing collected packages: pip
   Found existing installation: pip 10.0.1
     Uninstalling pip-10.0.1:
       Successfully uninstalled pip-10.0.1
Successfully installed pip-18.0

C:\Users\Robert>pip install 
C:\Users\Robert\Downloads\lxml-4.2.4-cp37-cp37m-win_
amd64.whl
Requirement already satisfied: lxml==4.2.4 from 
file:///C:/Users/Robert/Download
s/lxml-4.2.4-cp37-cp37m-win_amd64.whl in 
c:\users\robert\appdata\local\programs\
python\python37\lib\site-packages (4.2.4)

C:\Users\Robert>


Ale nadal przy próbie eksportu pliku jako DXF pojawia się ten sam komunikat.

Co mogę zrobić, aby działało?

Robert