Message11107

I just tried this actually on Windows and must say that I cannot reproduce it:

D:\workspace\linux\Jython\installer_test>java -jar jython-installer.jar --console
Willkommen bei Jython !
Sie sind im Begriff, Jython Version 2.7.1b3 zu installieren.
(Sie koennen die Installation jederzeit durch Eingabe von c abbrechen)
Die folgenden Sprachen sind fuer den Installationsvorgang verfuegbar: Englisch, Deutsch
Bitte waehlen Sie Ihre Sprache [E/d] >>> E
Do you want to read the license agreement now ? [y/N] >>> N
Do you accept the license agreement ? [Y/n] >>> Y
The following installation types are available:
  1. All (everything, including sources)
  2. Standard (core, library modules, demos and examples, documentation)
  3. Minimum (core)
  9. Standalone (a single, executable .jar)
Please select the installation type [ 1 /2/3/9] >>> 1
Do you want to exclude parts from the installation ? [y/N] >>> N
Please enter the target directory >>> D:\workspace\linux\Jython\installer_test\2.7.1
Unable to find directory D:\workspace\linux\Jython\installer_test\2.7.1, create it ? [Y/n] >>> Y
Your java version to start Jython is: Oracle Corporation / 1.8.0_121
Your operating system version is: Windows 10 / 10.0
Summary:
  - mod: true
  - demo: true
  - doc: true
  - src: true
  - ensurepip: true
  - JRE: C:\Program Files\Java\jre1.8.0_121
Please confirm copying of files to directory D:\workspace\linux\Jython\installer_test\2.7.1 [Y/n] >>> Y
 10 %
 20 %
 30 %
 40 %
 50 %
 60 %
 70 %
 80 %
Generating start scripts ...
Installing pip and setuptools
 90 %
Collecting setuptools
Collecting pip
Installing collected packages: setuptools, pip
Successfully installed pip-9.0.1 setuptools-28.8.0
 100 %
Do you want to show the contents of README ? [y/N] >>> N
Congratulations! You successfully installed Jython 2.7.1b3 to directory D:\workspace\linux\Jython\installer_test\2.7.1.

Then I tried to install some random package, e.g. pathlib:

D:\workspace\linux\Jython\installer_test\2.7.1>bin\pip install pathlib
Collecting pathlib
  Using cached pathlib-1.0.1.tar.gz
Installing collected packages: pathlib
  Running setup.py install for pathlib ... [?25ldone
[?25hSuccessfully installed pathlib-1.0.1

Despite from the font/codepage/whatever display issues it works well for me (Windows 10, Java 8 current Jython trunk version).

So could you please try it with current versions? Note the versions reported for pip and setuptools, i.e. pip-9.0.1 setuptools-28.8.0.

Then, if pip installation of some package fails, please describe the steps in detail; maybe it is a separate issue...

E.g. scandir setup fails via pip, because it tries to build a C-extension. Actually scandir itself is workable, becuase it has fallbacks for missing C-extension. I'going to file that in a separate issue however.

So it would be good to get an update about the state and validness of this issue, also given that it is marked urgent and everything.