move neg_cycle and low_discr_seq out of box

Author: luk036

.gitpod.Dockerfile

@@ -22,6 +22,8 @@ RUN apt-get update \
   pkg-config \
   ranger \
   w3m \
+  dialog \
+  whiptail \
 # just for fun (not cmatrix) \
   cowsay \
   figlet \

.travis.yml

@@ -15,6 +15,10 @@ matrix:
 install:
   - source tests/travis_install.sh
   - pip install -r requirements.txt
+  - git clone https://github.com/luk036/pylds
+  - cd pylds; pip install .; cd ..
+  - git clone https://github.com/luk036/netoptim
+  - cd netoptim; pip install .; cd ..
   # ^  DEPRECATION WARNING:
   # The automatic creation of a `requirements.txt` file is deprecated.
   # See `Dependency Management` in the docs for other options.

src/ellpy/oracles/corr_oracle.py

@@ -2,8 +2,7 @@
 from typing import List, Tuple, Union
 
 import numpy as np
-
-from .low_discr_seq import halton
+from pylds.low_discr_seq import halton
 
 Arr = Union[np.ndarray]
 Cut = Tuple[Arr, float]

src/ellpy/oracles/low_discr_seq.py src/ellpy/oracles/low_discr_seq.tpy

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 from typing import Any, Optional, Tuple
 
-from .neg_cycle import negCycleFinder
+from netoptim.neg_cycle import negCycleFinder
 
 Cut = Tuple[Any, float]
 
@@ -55,9 +55,8 @@ def get_weight(e):
             """
             return self._h.eval(e, x)
 
-        C = self._S.find_neg_cycle(self._u, get_weight)
-        if C != []:
-            f = -sum(self._h.eval(e, x) for e in C)
-            g = -sum(self._h.grad(e, x) for e in C)
+        for Ci in self._S.find_neg_cycle(self._u, get_weight):
+            f = -sum(self._h.eval(e, x) for e in Ci)
+            g = -sum(self._h.grad(e, x) for e in Ci)
             return g, f
         return None