Use GitHub Actions for testing + Pull Python 3.6 support

.flake8

@@ -0,0 +1,24 @@
+[flake8]
+# ignore = D203
+exclude =
+    # No need to traverse our git directory
+    .git,
+    # There's no value in checking cache directories
+    __pycache__,
+    # The conf file is mostly autogenerated, ignore it
+    docs/source/conf.py,
+    # The old directory contains Flake8 2.0
+    old,
+    # This contains our built documentation
+    build,
+    # This contains builds of flake8 that we don't want to check
+    dist,
+	notebooks,
+	doc,
+	.venv,
+	.github,
+	.pytest_cache,
+	.eggs,
+	versioneer.py
+    _version.py
+max-complexity = 10

.github/ISSUE_TEMPLATE/Bug_report.md

@@ -0,0 +1,32 @@
+---
+name: Bug report
+about: Create a report to help us improve
+
+---
+
+Summary.
+
+## Expected Result
+
+What you expected.
+
+## Actual Result
+
+What happened instead.
+
+## Reproduction Steps
+
+```python
+import pdpipe
+
+```
+
+## System Information
+
+
+```
+<paste here>
+```
+
+Please provide some basic information about your system (Python version,
+operating system, &c).

.github/ISSUE_TEMPLATE/Feature_request.md

@@ -0,0 +1,6 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+
+---
+

.github/issue_template.md

@@ -0,0 +1,22 @@
+
+
+
+### Expected Behavior
+
+
+
+### Actual Behavior
+
+
+
+### Steps to Reproduce
+
+1.
+2.
+3.
+
+
+
+### Additional info
+
+- pdpipe version:

.github/lint-markdown.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+set -eu
+
+error () { echo "ERROR in '$file': $@" >&2; exit 1; }
+
+for file in "$@"; do
+    if grep '\x0D' "$file"; then
+        error 'Use LF to end lines, not CRLF'
+    fi
+    if grep -Pv '^(\[[^\]]+\]: .*|\[!.*\))$' "$file" | grep -Pvn '^.{0,90}$'; then
+        error 'Lines too long'
+    fi
+done
+# if grep -Pzo '(?<![-=\n]\n\n)(?<=\n)(#+ \N*\w\N*|\N*\w\N*\n-+)\n' "$file"; then
+#     error 'Need two blank lines before heading'
+# fi

.github/stale.yml

@@ -0,0 +1,17 @@
+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 60
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 7
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - pinned
+  - security
+# Label to use when marking an issue as stale
+staleLabel: wontfix
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs. Thank you
+  for your contributions.
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: false

.github/workflows/lint.yml

@@ -0,0 +1,35 @@
+
+name: Lint
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    environment:
+      name: test
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [3.8]
+        os: [ubuntu-latest]
+
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v2
+
+      - name: set up python 3.8
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.8
+
+      # Install your linters here
+      - name: Install flake8
+        run: |
+          python -m pip install flake8
+      - name: Run linters
+        uses: wearerequired/lint-action@v1
+        with:
+          flake8: true
+          continue_on_error: false
+          # Enable your linters here

.github/workflows/test.yml

@@ -0,0 +1,35 @@
+name: Test
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    environment:
+      name: test
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [3.7, 3.8, 3.9, '3.10']
+        os: [ubuntu-latest, macOS-latest, windows-latest]
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v1
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install --upgrade pytest codecov wheel
+          python -m pip install --only-binary=all numpy scipy pandas scikit-learn
+          python -m pip install -e ".[test]"
+      - name: Unit tests
+        run: |
+          python -m pytest
+      - name: Report coverage
+        run: |
+          python -m codecov

setup.py

@@ -48,10 +48,10 @@
         'Development Status :: 4 - Beta',
         'License :: OSI Approved :: MIT License',
         'Programming Language :: Python',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
         'Topic :: Software Development :: Libraries',
         'Topic :: Software Development :: Libraries :: Python Modules',
         'Intended Audience :: Developers',