(address . bug-guix@gnu.org)
jack_control needs to be run with python2:
fps@cherry ~/src/guix$ jack_control ep
File "/home/fps/.guix-profile/bin/jack_control", line 80
print 'shit'
[sic]
The interpreter shebang points to a python3.4 though
#!/gnu/store/l9vhjpqza8piap4r047m5xfz86wnxgqw-python-wrapper-3.4.3/bin/python
name_base = 'org.jackaudio'
control_interface_name = name_base + '.JackControl'
Flo