Drop Python 3.6 support (#482)

* Drop Python 3.6 support

* pandas 0.23.2+ required for Python 3.7+ support

* Update environment.yml too

.github/workflows/tests.yaml

@@ -33,10 +33,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.6, 3.7, 3.8, 3.9]
-        exclude:
-        - os: windows-latest
-          python-version: 3.6
+        python-version: [3.7, 3.8, 3.9]
     steps:
     - name: Clone repo
       uses: actions/checkout@v2

environment.yml

@@ -10,7 +10,7 @@ dependencies:
   - pip
   - pycocotools
   - pyproj>=2.2
-  - python>=3.6
+  - python>=3.7
   - pytorch>=1.7
   - rarfile>=3
   - rasterio>=1.0.16
@@ -30,7 +30,7 @@ dependencies:
     - omegaconf>=2.1
     - open3d>=0.11.2
     - opencv-python
-    - pandas>=0.19.1
+    - pandas>=0.23.2
     - pillow>=2.9
     - pydocstyle[toml]>=6.1
     - pytest>=6

pyproject.toml

@@ -6,7 +6,7 @@ requires = [
 build-backend = "setuptools.build_meta"
 
 [tool.black]
-target-version = ["py36", "py37", "py38", "py39"]
+target-version = ["py37", "py38", "py39"]
 color = true
 skip_magic_trailing_comma = true
 

setup.cfg

@@ -13,7 +13,6 @@ classifiers =
     Development Status :: 3 - Alpha
     Intended Audience :: Science/Research
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
@@ -28,8 +27,6 @@ setup_requires =
     # setuptools 42+ required for metadata.license_files support in setup.cfg
     setuptools>=42
 install_requires =
-    # dataclasses was added in Python 3.7
-    dataclasses;python_version<'3.7'
     einops
     # fiona 1.5+ required for fiona.transform module
     fiona>=1.5
@@ -63,7 +60,7 @@ install_requires =
     torchmetrics>=0.7
     # torchvision 0.10+ required for torchvision.utils.draw_segmentation_masks
     torchvision>=0.10
-python_requires = >= 3.6
+python_requires = >= 3.7
 packages = find:
 
 [options.packages.find]
@@ -73,14 +70,14 @@ include = torchgeo*
 # Optional dataset requirements
 datasets =
     h5py
-    # laspy 2+ required for Python 3.6+ support
+    # laspy 2+ required for Python 3.7+ support
     laspy>=2
     # open3d 0.11.2+ required to avoid GLFW error:
     # https://github.com/isl-org/Open3D/issues/1550
     open3d>=0.11.2
     opencv-python
-    # pandas 0.19.1+ required for python 3.6 support
-    pandas>=0.19.1
+    # pandas 0.23.2+ required for python 3.7 support
+    pandas>=0.23.2
     pycocotools
     # radiant-mlhub 0.2.1+ required for api_key bugfix:
     # https://github.com/radiantearth/radiant-mlhub/pull/48