Merge pull request #338 from IBM/development_maintenance

Development maintenance

Author: beat-buesser

.lgtm.yml

@@ -1,2 +1,3 @@
 queries:
   - exclude: py/import-own-module
+  - exclude: py/similar-function

art/attacks/evasion/pixel_threshold.py

@@ -31,8 +31,6 @@
 
 import numpy as np
 
-from cma import CMAEvolutionStrategy, CMAOptions
-
 # Currently, a modified version of SciPy's differential evolution is used in
 # code. An ideal version would be using the import as follows,
 # from scipy.optimize import differential_evolution
@@ -209,6 +207,7 @@ def callback_fn(x, convergence=None):
 
         if self.es == 0:
 
+            from cma import CMAOptions
             opts = CMAOptions()
 
             if not self.verbose:
@@ -224,6 +223,7 @@ def callback_fn(x, convergence=None):
             else:
                 std = limit
 
+            from cma import CMAEvolutionStrategy
             strategy = CMAEvolutionStrategy(initial, std / 4, opts)
 
             try:

readthedocs.yml

@@ -8,3 +8,5 @@ python:
     use_system_site_packages: true
     extra_requirements:
         - docs
+    install:
+      - requirements: requirements.txt