[MRG] update to Python>=3.8

.circleci/config.yml

@@ -27,10 +27,10 @@ jobs:
               command: |
                   export PATH=~/miniconda/bin:$PATH
                   conda update --yes --quiet conda
-                  conda create -n testenv --yes pip python=3.7
+                  conda create -n testenv --yes pip python=3.8
                   source activate testenv
                   conda install --yes scipy numpy matplotlib
-                  pip install mne pooch tqdm psutil mpi4py joblib
+                  pip install mne pooch tqdm psutil mpi4py joblib nibabel
 
           - run:
               name: Setup doc building stuff

.github/workflows/unit_tests.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        python-version: [3.7, 3.8]
+        python-version: [3.8, 3.9]
 
     steps:
       - uses: actions/checkout@v2
@@ -35,11 +35,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install flake8 pytest pytest-cov
           pip install psutil joblib
-          if [ "${{ matrix.os }}" == "ubuntu-latest" ]; then
-            pip install mpi4py
-          else
-            conda install --yes mpi4py openmpi
-          fi
+          conda install --yes -c conda-forge mpi4py openmpi
       - name: Install HNN-core
         shell: bash -el {0}
         run: |

.github/workflows/windows_unit_tests.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-latest]
-        python-version: [3.7, 3.8]
+        python-version: [3.8, 3.9]
 
     steps:
       - uses: actions/checkout@v2

README.rst

@@ -44,7 +44,7 @@ Contributors are very welcome. Please read our
 
 Dependencies
 ------------
-hnn-core requires Python (>=3.7) and the following packages:
+hnn-core requires Python (>=3.8) and the following packages:
 
 * numpy
 * scipy

doc/whats_new.rst

@@ -18,6 +18,9 @@ Changelog
 - Add ability to manually define colors in spike histogram plots,
   by `Nick Tolley`_ in :gh:`640`
 
+- Update minimum supported version of Python to 3.8, by `Ryan Thorpe`_ in
+  :gh:`678`.
+
 Bug
 ~~~
 - Fix inconsistent connection mapping from drive gids to cell gids, by

examples/workflows/plot_simulate_somato.py

@@ -22,8 +22,9 @@
 
 ###############################################################################
 # First, we will import the packages needed for computing the inverse solution
-# from the MNE somatosensory dataset. `MNE`_ can be installed with
-# ``pip install mne``, and the somatosensory dataset can be downloaded by
+# from the MNE somatosensory dataset. `MNE`_ (and its dependency `NiBabel`_)
+# can be installed with ``pip install mne nibabel``
+# The somatosensory dataset can be downloaded by
 # importing ``somato`` from ``mne.datasets``.
 import os.path as op
 import matplotlib.pyplot as plt
@@ -271,6 +272,7 @@
 # .. LINKS
 #
 # .. _MNE: https://mne.tools/
+# .. _NiBabel: https://nipy.org/nibabel/
 # .. _HNN ERP tutorial: https://jonescompneurolab.github.io/hnn-tutorials/erp/erp
 # .. _this MNE-python example: https://mne.tools/stable/auto_examples/inverse/plot_label_source_activations.html
 # .. |mne_label_fig| image:: https://user-images.githubusercontent.com/20212206/106524603-cfe75c80-64b0-11eb-9607-3415195c3e7a.png

hnn_core/tests/test_viz.py

@@ -1,7 +1,7 @@
-from functools import partial
 import os.path as op
 
 import matplotlib
+from matplotlib import backend_bases
 import matplotlib.pyplot as plt
 import numpy as np
 from numpy.testing import assert_allclose
@@ -19,8 +19,11 @@
 def _fake_click(fig, ax, point, button=1):
     """Fake a click at a point within axes."""
     x, y = ax.transData.transform_point(point)
-    func = partial(fig.canvas.button_press_event, x=x, y=y, button=button)
-    func(guiEvent=None)
+    button_press_event = backend_bases.MouseEvent(
+        name='button_press_event', canvas=fig.canvas,
+        x=x, y=y, button=button
+    )
+    fig.canvas.callbacks.process('button_press_event', button_press_event)
 
 
 def test_network_visualization():

setup.py

@@ -109,7 +109,7 @@ def run(self):
               'gui': ['ipywidgets <=7.7.1', 'ipympl<0.9', 'voila<=0.3.6'],
               'opt': ['scikit-learn']
           },
-          python_requires='>=3.7',
+          python_requires='>=3.8',
           packages=find_packages(),
           package_data={'hnn_core': [
               'param/*.json',