Drop Python2

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
-        python-version: ['3.9', '2.7']
+        python-version: ['3.9']
         PYTEST_QT_API: [pyqt5, pyqt4v2]
         exclude:
           - os: macos-latest
@@ -56,11 +56,7 @@ jobs:
       shell: bash -l {0}
       run: |
         if [ "${{ matrix.PYTEST_QT_API }}" = "pyside2" ]; then
-          if [ "${{ matrix.python-version }}" = "2.7" ]; then
-            conda install -q -y 'pyside2!=5.12.4' -c conda-forge
-          else
-            conda install -q -y pyside2 -c conda-forge
-          fi
+          conda install -q -y pyside2 -c conda-forge
         elif [ "${{ matrix.PYTEST_QT_API }}" = "pyqt4v2" ]; then
           conda install -q -y pyqt=4 -c conda-forge
         else  # pyqt5
@@ -84,19 +80,15 @@ jobs:
       shell: bash -l {0}
       if: matrix.os != 'windows-latest'
       run: |
-        if [ "${{ matrix.python-version }}" == "2.7" ]; then
-          pip install hacking==2.0.0
-        else
-          pip install hacking==4.1.0
-        fi
+        pip install hacking==4.1.0
         flake8 .
 
     - name: Black
       shell: bash -l {0}
-      if: matrix.os != 'windows-latest' && matrix.python-version != '2.7'
+      if: matrix.os != 'windows-latest'
       run: |
         pip install black==22.1.0
-        black --line-length 79 --check --diff labelme
+        black --line-length 79 --check --diff labelme/
 
     - name: Test with pytest
       shell: bash -l {0}
@@ -113,7 +105,7 @@ jobs:
           (sudo Xvfb :99 -ac -screen 0 1024x768x8 )&
         fi
         # run test
-        MPLBACKEND='agg' pytest tests -m 'not gpu'
+        MPLBACKEND='agg' pytest tests/
 
     - name: Run examples
       shell: bash -l {0}

README.md

@@ -56,7 +56,7 @@ It is written in Python and uses Qt for its graphical interface.
 ## Requirements
 
 - Ubuntu / macOS / Windows
-- Python2 / Python3
+- Python3
 - [PyQt4 / PyQt5](http://www.riverbankcomputing.co.uk/software/pyqt/intro)
 
 
@@ -73,17 +73,8 @@ There are options:
 You need install [Anaconda](https://www.continuum.io/downloads), then run below:
 
 ```bash
-# python2
-conda create --name=labelme python=2.7
-source activate labelme
-# conda install -c conda-forge pyside2
-conda install pyqt
-pip install labelme
-# if you'd like to use the latest version. run below:
-# pip install git+https://github.com/wkentaro/labelme.git
-
 # python3
-conda create --name=labelme python=3.6
+conda create --name=labelme python=3
 source activate labelme
 # conda install -c conda-forge pyside2
 # conda install pyqt
@@ -110,31 +101,22 @@ docker run -it -v /tmp/.X11-unix:/tmp/.X11-unix -e DISPLAY=:0 -v $(pwd):/root/wo
 ### Ubuntu
 
 ```bash
-# Ubuntu 14.04 / Ubuntu 16.04
-# Python2
-# sudo apt-get install python-qt4  # PyQt4
-sudo apt-get install python-pyqt5  # PyQt5
-sudo pip install labelme
-# Python3
-sudo apt-get install python3-pyqt5  # PyQt5
+sudo apt-get install labelme
+
+# or
 sudo pip3 install labelme
 
 # or install standalone executable from:
 # https://github.com/wkentaro/labelme/releases
 ```
 
-### Ubuntu 19.10+ / Debian (sid)
-
-```bash
-sudo apt-get install labelme
-```
-
 ### macOS
 
 ```bash
 brew install pyqt  # maybe pyqt5
-pip install labelme  # both python2/3 should work
+pip install labelme
 
+# or
 brew install wkentaro/labelme/labelme  # command line interface
 # brew install --cask wkentaro/labelme/labelme  # app
 
@@ -147,10 +129,12 @@ brew install wkentaro/labelme/labelme  # command line interface
 Install [Anaconda](https://www.continuum.io/downloads), then in an Anaconda Prompt run:
 
 ```bash
-# python3
-conda create --name=labelme python=3.6
+conda create --name=labelme python=3
 conda activate labelme
 pip install labelme
+
+# or install standalone executable/app from:
+# https://github.com/wkentaro/labelme/releases
 ```
 
 
@@ -247,7 +231,7 @@ pip install black hacking pytest pytest-qt
 
 flake8 .
 black --line-length 79 --check labelme/
-MPLBACKEND='agg' pytest tests/ -m 'not gpu'
+MPLBACKEND='agg' pytest tests/
 ```
 
 

setup.py

@@ -137,14 +137,16 @@ def main():
         classifiers=[
             "Development Status :: 5 - Production/Stable",
             "Intended Audience :: Developers",
+            "Intended Audience :: Science/Research",
             "Natural Language :: English",
+            "Operating System :: OS Independent",
             "Programming Language :: Python",
-            "Programming Language :: Python :: 2.7",
             "Programming Language :: Python :: 3.5",
             "Programming Language :: Python :: 3.6",
             "Programming Language :: Python :: 3.7",
-            "Programming Language :: Python :: Implementation :: CPython",
-            "Programming Language :: Python :: Implementation :: PyPy",
+            "Programming Language :: Python :: 3.8",
+            "Programming Language :: Python :: 3.9",
+            "Programming Language :: Python :: 3 :: Only",
         ],
         package_data={"labelme": ["icons/*", "config/*.yaml"]},
         entry_points={