chore: drop coverage 3.x support

Author: TheKevJames

coveralls/reporter.py

@@ -140,9 +140,8 @@ def report(self, cov, conf, morfs=None):
                     log.warning('Source file is not python %s', cu.filename)
             except KeyError:
                 version = [int(x) for x in __version__.split('.')]
-                cov3x = version[0] < 4
                 cov40 = version[0] == 4 and version[1] < 1
-                if cov3x or cov40:
+                if cov40:
                     raise CoverallsException(
                         'Old (<4.1) versions of coverage.py do not work '
                         'consistently on new versions of Python. Please '

setup.py

@@ -33,7 +33,7 @@
         ],
     },
     install_requires=[
-        'coverage>=3.6,<6.0',
+        'coverage>=4.0,<6.0',
         'docopt>=0.6.1',
         'requests>=1.0.0',
     ],

tests/api/encoding_test.py

@@ -2,9 +2,6 @@
 import os
 import subprocess
 
-import coverage
-import pytest
-
 from coveralls import Coveralls
 
 
@@ -24,8 +21,6 @@ def test_non_unicode():
     assert expected_json_part in actual_json
 
 
-@pytest.mark.skipif(coverage.__version__.startswith('3.'),
-                    reason='coverage 3 fails')
 def test_malformed_encoding_declaration_py3_or_coverage4():
     os.chdir(NONUNICODE_DIR)
     subprocess.call(['coverage', 'run', 'malformed.py'], cwd=NONUNICODE_DIR)

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{34,35}-cov{3,4,41}-{default,pyyaml},py{36,37,38,py3}-cov{41,5}-{default,pyyaml}
+envlist = py{34,35}-cov{4,41}-{default,pyyaml},py{36,37,38,py3}-cov{41,5}-{default,pyyaml}
 
 [gh-actions]
 python =
@@ -15,7 +15,6 @@ deps =
     mock
     pytest
     pyyaml: PyYAML>=3.10,<5.3
-    cov3: coverage<4.0
     cov4: coverage>=4.0,<4.1
     cov41: coverage>=4.1,<5.0
     cov5: coverage>=5.0,<6.0