Package: jython
Version: 2.5.3-11
Severity: normal

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Hash: SHA256

Hi,

/usr/bin/jython should set python.home = '/usr/share/jython', but it uses 
dirname(dirname($0)) instead, which returns '/usr'.

This setting comes from #705146, to support virtualenv. But it is incorrect 
when jython is launched directly: it then fails to found its system-wide 
registry at ${python.home}/registry.

A setting compatible with both use cases would be:
* install the jython launcher into /usr/share/jython/bin
* make /usr/bin/jython a symlink to /usr/share/jython/bin/jython
* replace dirname(dirname($0)) with dirname(dirname(abs_path($0)))

Thanks,

_g.

- -- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.7.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages jython depends on:
ii  antlr3.2                                         3.2-14
ii  default-jre-headless [java5-runtime-headless]    2:1.8-57
ii  libasm3-java                                     3.3.2-3
ii  libguava-java                                    19.0-1
ii  libjffi-java                                     1.2.7-10
ii  libjline-java                                    1.0-2
ii  libjnr-constants-java                            0.8.6-8
ii  libjnr-netdb-java                                1.1.6-1
ii  libjnr-posix-java                                3.0.12-2
ii  libjnr-x86asm-java                               1.0.2-5
ii  liblivetribe-jsr223-java                         2.0.6-1
ii  libreadline-java                                 0.8.0.1+dfsg-4+b2
ii  openjdk-8-jre-headless [java5-runtime-headless]  8u111-b14-2
pn  python:any                                       <none>

Versions of packages jython recommends:
ii  default-jdk                    2:1.8-57
ii  openjdk-8-jdk [java-compiler]  8u111-b14-2

Versions of packages jython suggests:
ii  jython-doc               2.5.3-11
pn  libmysql-java            <none>
pn  libpostgresql-jdbc-java  <none>

- -- Configuration Files:
/etc/jython/jython.conf changed [not included]

- -- no debconf information

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