gistfile1.txt

% nix-build default.nix -A ntpsec                                                                        :(
/nix/store/in8dvdi5a8w6cybm3vxw4ys27kaz93iq-ntpsec-1.1.4

% ./result/bin/ntpq                            
ntpq: can't find Python NTP library -- check PYTHONPATH.
No module named ntp.control

% head -n 1 ./result/bin/ntpq                                                                            :(
#!/nix/store/k4gf6ajykc2i8zp2zk5x0h7mf4r08cv6-python-2.7.16/bin/python

% /nix/store/k4gf6ajykc2i8zp2zk5x0h7mf4r08cv6-python-2.7.16/bin/python                                   :(
Python 2.7.16 (default, Mar  2 2019, 18:34:01) 
[GCC 7.4.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
['', '/nix/store/k4gf6ajykc2i8zp2zk5x0h7mf4r08cv6-python-2.7.16/lib/python27.zip', '/nix/store/k4gf6ajykc2i8zp2zk5x0h7mf4r08cv6-python-2.7.16/lib/python2.7', '/nix/store/k4gf6ajykc2i8zp2zk5x0h7mf4r08cv6-python-2.7.16/lib/python2.7/plat-linux2', '/nix/store/k4gf6ajykc2i8zp2zk5x0h7mf4r08cv6-python-2.7.16/lib/python2.7/lib-tk', '/nix/store/k4gf6ajykc2i8zp2zk5x0h7mf4r08cv6-python-2.7.16/lib/python2.7/lib-old', '/nix/store/k4gf6ajykc2i8zp2zk5x0h7mf4r08cv6-python-2.7.16/lib/python2.7/lib-dynload', '/nix/store/k4gf6ajykc2i8zp2zk5x0h7mf4r08cv6-python-2.7.16/lib/python2.7/site-packages']

% ls result/lib/python2.7/site-packages 
ntp  ntp-1.1.4.egg-info