Restore py27 support

Author: elacuesta

.github/workflows/main.yml

@@ -20,6 +20,18 @@ jobs:
             env:
               TOXENV: "json"
 
+          - python-version: "2.7"
+            env:
+              TOXENV: "msgpack"
+          - python-version: "2.7"
+            env:
+              TOXENV: "json"
+          - python-version: "3.5"
+            env:
+              TOXENV: "msgpack"
+          - python-version: "3.5"
+            env:
+              TOXENV: "json"
           - python-version: "3.6"
             env:
               TOXENV: "msgpack"

setup.py

@@ -28,12 +28,14 @@
     package_data={'scrapinghub': ['VERSION']},
     install_requires=['requests>=1.0', 'retrying>=1.3.3', 'six>=1.10.0'],
     extras_require={'msgpack': mpack_required},
-    python_requires='>=3.6',
+    python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*',
     classifiers=[
         'Development Status :: 5 - Production/Stable',
         'License :: OSI Approved :: BSD License',
         '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 :: 3.8',

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py{36,py3,37,38,39}-{json,msgpack}
+envlist = py{27,35,36,py3,37,38,39}-{json,msgpack}
 
 [testenv]
 deps =