Fix circleci (#73)

* Upgrade Pip, fix examples

* Start runnin g Stack Example

.circleci/config.yml

@@ -28,6 +28,7 @@ jobs:
           command: |
             python3 -m venv venv
             . venv/bin/activate
+            pip install --upgrade pip
             pushd ../
             git clone https://github.com/CEA-COSMIC/pysap
             cd pysap
@@ -44,6 +45,7 @@ jobs:
           name: Running CircleCI tests
           command: |
             . venv/bin/activate
+            pip install --upgrade pip
             pip install Cython
             pip install -e .
             python .circleci/test_script.py

.circleci/test_script.py

@@ -14,10 +14,5 @@
 
 for path in example_files:
     print("-- ", path)
-    if os.path.basename(path) == 'non_cartesian_reconstruction_stack_3d.py':
-        # TODO speed up and enable this example
-        print("Skipping Stack Example for now, this must be re-enabled after "
-              "speed up")
-        continue
     cmd = ["python3", path]
     subprocess.check_call(cmd, env=os.environ)