Drop support for Python 3.6

.github/workflows/ci.yml

@@ -8,12 +8,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: [3.6, 3.7, 3.8, 3.9, pypy3]
+        python: [3.7, 3.8, 3.9, 3.10, pypy3.7]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python }}
     - name: Install dependencies
@@ -34,9 +34,9 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v3
     - name: Set up Python 3.7
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v4
       with:
         python-version: 3.7
     - name: Install dependencies

.github/workflows/nightly.yml

@@ -29,14 +29,14 @@ jobs:
 
     steps:
     - name: Checkout source for staging
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         ref: ${{ github.event.client_payload.ref || github.ref }}
 
     - name: Set up Python
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v4
       with:
-        python-version: 3.6
+        python-version: 3.7
 
     - name: Install dependencies
       run: |

.github/workflows/release.yml

@@ -45,9 +45,9 @@ jobs:
         ref: ${{ github.event.client_payload.ref || github.ref }}
 
     - name: Set up Python
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v4
       with:
-        python-version: 3.6
+        python-version: 3.7
 
     - name: Install dependencies
       run: |

setup.py

@@ -22,8 +22,8 @@
 
 
 (major, minor) = (sys.version_info.major, sys.version_info.minor)
-if major != 3 or minor < 6:
-    print('firebase_admin requires python >= 3.6', file=sys.stderr)
+if major != 3 or minor < 7:
+    print('firebase_admin requires python >= 3.7', file=sys.stderr)
     sys.exit(1)
 
 # Read in the package metadata per recommendations from:
@@ -58,16 +58,16 @@
     keywords='firebase cloud development',
     install_requires=install_requires,
     packages=['firebase_admin'],
-    python_requires='>=3.6',
+    python_requires='>=3.7',
     classifiers=[
         'Development Status :: 5 - Production/Stable',
         'Intended Audience :: Developers',
         'Topic :: Software Development :: Build Tools',
         'Programming Language :: Python :: 3',
-        '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',
         'License :: OSI Approved :: Apache Software License',
     ],
 )