diff --git a/.gitignore b/.gitignore
index 4422e0a2042..6a7604a8228 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,3 +28,5 @@ vendor
 **/bin/helper
 /.core-bash_history
 coverage/
+.ruby-gemset
+.ruby-version
diff --git a/python/helpers/lib/parser.py b/python/helpers/lib/parser.py
index e9770607982..7bc39c4943d 100644
--- a/python/helpers/lib/parser.py
+++ b/python/helpers/lib/parser.py
@@ -57,38 +57,50 @@ def version_from_install_req(install_req):
 
 
 def parse_setup(directory):
-    # Parse the setup.py
-    setup_packages = []
-    if os.path.isfile(directory + '/setup.py'):
-        def version_from_install_req(install_req):
-            if install_req.is_pinned:
-                return next(iter(install_req.specifier)).version
+    def version_from_install_req(install_req):
+        if install_req.is_pinned:
+            return next(iter(install_req.specifier)).version
 
-        def parse_requirement(req, req_type):
-            install_req = install_req_from_line(req)
-            if install_req.original_link:
-                return
+    def parse_requirement(req, req_type, filename):
+        install_req = install_req_from_line(req)
+        if install_req.original_link:
+            return
 
-            setup_packages.append({
+        setup_packages.append(
+            {
                 "name": install_req.req.name,
                 "version": version_from_install_req(install_req),
                 "markers": str(install_req.markers) or None,
-                "file": "setup.py",
+                "file": filename,
                 "requirement": str(install_req.specifier) or None,
                 "requirement_type": req_type,
-                "extras": sorted(list(install_req.extras))
-            })
+                "extras": sorted(list(install_req.extras)),
+            }
+        )
+
+    def parse_requirements(requires, req_type, filename):
+        for req in requires:
+            parse_requirement(req, req_type, filename)
+
+    # Parse the setup.py and setup.cfg
+    setup_py = "setup.py"
+    setup_py_path = os.path.join(directory, setup_py)
+    setup_cfg = "setup.cfg"
+    setup_cfg_path = os.path.join(directory, setup_cfg)
+    setup_packages = []
+
+    if os.path.isfile(setup_py_path):
 
         def setup(*args, **kwargs):
-            for arg in ['setup_requires', 'install_requires', 'tests_require']:
-                if not kwargs.get(arg):
-                    continue
-                for req in kwargs.get(arg):
-                    parse_requirement(req, arg)
-            extras_require_dict = kwargs.get('extras_require', {})
-            for key in extras_require_dict:
-                for req in extras_require_dict[key]:
-                    parse_requirement(req, 'extras_require:{}'.format(key))
+            for arg in ["setup_requires", "install_requires", "tests_require"]:
+                requires = kwargs.get(arg, [])
+                parse_requirements(requires, arg, setup_py)
+            extras_require_dict = kwargs.get("extras_require", {})
+            for key, value in extras_require_dict.items():
+                parse_requirements(
+                    value, "extras_require:{}".format(key), setup_py
+                )
+
         setuptools.setup = setup
 
         def noop(*args, **kwargs):
@@ -100,17 +112,19 @@ def fake_parse(*args, **kwargs):
         global fake_open
 
         def fake_open(*args, **kwargs):
-            content = ("VERSION = ('0', '0', '1+dependabot')\n"
-                       "__version__ = '0.0.1+dependabot'\n"
-                       "__author__ = 'someone'\n"
-                       "__title__ = 'something'\n"
-                       "__description__ = 'something'\n"
-                       "__author_email__ = 'something'\n"
-                       "__license__ = 'something'\n"
-                       "__url__ = 'something'\n")
+            content = (
+                "VERSION = ('0', '0', '1+dependabot')\n"
+                "__version__ = '0.0.1+dependabot'\n"
+                "__author__ = 'someone'\n"
+                "__title__ = 'something'\n"
+                "__description__ = 'something'\n"
+                "__author_email__ = 'something'\n"
+                "__license__ = 'something'\n"
+                "__url__ = 'something'\n"
+            )
             return io.StringIO(content)
 
-        content = open(directory + '/setup.py', 'r').read()
+        content = open(setup_py_path, "r").read()
 
         # Remove `print`, `open`, `log` and import statements
         content = re.sub(r"print\s*\(", "noop(", content)
@@ -121,18 +135,41 @@ def fake_open(*args, **kwargs):
         content = re.sub(version_re, "", content)
 
         # Set variables likely to be imported
-        __version__ = '0.0.1+dependabot'
-        __author__ = 'someone'
-        __title__ = 'something'
-        __description__ = 'something'
-        __author_email__ = 'something'
-        __license__ = 'something'
-        __url__ = 'something'
+        __version__ = "0.0.1+dependabot"
+        __author__ = "someone"
+        __title__ = "something"
+        __description__ = "something"
+        __author_email__ = "something"
+        __license__ = "something"
+        __url__ = "something"
 
         # Run as main (since setup.py is a script)
-        __name__ = '__main__'
+        __name__ = "__main__"
 
         # Exec the setup.py
         exec(content) in globals(), locals()
 
+    if os.path.isfile(setup_cfg_path):
+        try:
+            config = setuptools.config.read_configuration(setup_cfg_path)
+
+            for req_type in [
+                "setup_requires",
+                "install_requires",
+                "tests_require",
+            ]:
+                requires = config.get("options", {}).get(req_type, [])
+                parse_requirements(requires, req_type, setup_cfg)
+
+            extras_require = config.get("options", {}).get(
+                "extras_require", {}
+            )
+            for key, value in extras_require.items():
+                parse_requirements(
+                    value, "extras_require:{}".format(key), setup_cfg
+                )
+        except Exception as e:
+            print(json.dumps({"error": repr(e)}))
+            exit(1)
+
     return json.dumps({"result": setup_packages})
diff --git a/python/helpers/run.py b/python/helpers/run.py
index c70d3d4a31e..26961e502d2 100644
--- a/python/helpers/run.py
+++ b/python/helpers/run.py
@@ -8,7 +8,7 @@
 
     if args["function"] == "parse_requirements":
         print(parser.parse_requirements(args["args"][0]))
-    if args["function"] == "parse_setup":
+    elif args["function"] == "parse_setup":
         print(parser.parse_setup(args["args"][0]))
     elif args["function"] == "get_dependency_hash":
         print(hasher.get_dependency_hash(*args["args"]))
diff --git a/python/lib/dependabot/python/file_fetcher.rb b/python/lib/dependabot/python/file_fetcher.rb
index 48bf3d6a9c8..cff7bdef11e 100644
--- a/python/lib/dependabot/python/file_fetcher.rb
+++ b/python/lib/dependabot/python/file_fetcher.rb
@@ -25,11 +25,13 @@ def self.required_files_in?(filenames)
         # If this repo is using Poetry return true
         return true if filenames.include?("pyproject.toml")
 
-        filenames.include?("setup.py")
+        return true if filenames.include?("setup.py")
+
+        filenames.include?("setup.cfg")
       end
 
       def self.required_files_message
-        "Repo must contain a requirements.txt, setup.py, pyproject.toml, "\
+        "Repo must contain a requirements.txt, setup.py, setup.cfg, pyproject.toml, "\
         "or a Pipfile."
       end
 
@@ -45,7 +47,7 @@ def fetch_files
         fetched_files += requirement_files if requirements_txt_files.any?
 
         fetched_files << setup_file if setup_file
-        fetched_files << setup_cfg if setup_cfg
+        fetched_files << setup_cfg_file if setup_cfg_file
         fetched_files += path_setup_files
         fetched_files << pip_conf if pip_conf
         fetched_files << python_version if python_version
@@ -77,7 +79,7 @@ def requirement_files
       end
 
       def check_required_files_present
-        return if requirements_txt_files.any? || setup_file || pipfile || pyproject
+        return if requirements_txt_files.any? || setup_file || setup_cfg_file || pipfile || pyproject
 
         path = Pathname.new(File.join(directory, "requirements.txt")).
                cleanpath.to_path
@@ -88,8 +90,8 @@ def setup_file
         @setup_file ||= fetch_file_if_present("setup.py")
       end
 
-      def setup_cfg
-        @setup_cfg ||= fetch_file_if_present("setup.cfg")
+      def setup_cfg_file
+        @setup_cfg_file ||= fetch_file_if_present("setup.cfg")
       end
 
       def pip_conf
diff --git a/python/lib/dependabot/python/file_parser.rb b/python/lib/dependabot/python/file_parser.rb
index a4d9ab9cd65..4ea73a61f42 100644
--- a/python/lib/dependabot/python/file_parser.rb
+++ b/python/lib/dependabot/python/file_parser.rb
@@ -44,7 +44,7 @@ def parse
         dependency_set += pipenv_dependencies if pipfile
         dependency_set += poetry_dependencies if using_poetry?
         dependency_set += requirement_dependencies if requirement_files.any?
-        dependency_set += setup_file_dependencies if setup_file
+        dependency_set += setup_file_dependencies if setup_file || setup_cfg_file
 
         dependency_set.dependencies
       end
@@ -207,8 +207,9 @@ def check_required_files
         return if pipfile
         return if pyproject
         return if setup_file
+        return if setup_cfg_file
 
-        raise "No requirements.txt or setup.py!"
+        raise "Missing required files!"
       end
 
       def pipfile
@@ -248,6 +249,10 @@ def setup_file
         @setup_file ||= get_original_file("setup.py")
       end
 
+      def setup_cfg_file
+        @setup_cfg_file ||= get_original_file("setup.cfg")
+      end
+
       def pip_compile_files
         @pip_compile_files ||=
           dependency_files.select { |f| f.name.end_with?(".in") }
diff --git a/python/lib/dependabot/python/file_parser/setup_file_parser.rb b/python/lib/dependabot/python/file_parser/setup_file_parser.rb
index ea9f4900791..73734b6f853 100644
--- a/python/lib/dependabot/python/file_parser/setup_file_parser.rb
+++ b/python/lib/dependabot/python/file_parser/setup_file_parser.rb
@@ -71,6 +71,8 @@ def parsed_setup_file
         rescue SharedHelpers::HelperSubprocessFailed => e
           raise Dependabot::DependencyFileNotEvaluatable, e.message if e.message.start_with?("InstallationError")
 
+          return [] unless setup_file
+
           parsed_sanitized_setup_file
         end
 
diff --git a/python/lib/dependabot/python/file_updater.rb b/python/lib/dependabot/python/file_updater.rb
index 16de85814f0..e877634aa3e 100644
--- a/python/lib/dependabot/python/file_updater.rb
+++ b/python/lib/dependabot/python/file_updater.rb
@@ -19,6 +19,7 @@ def self.updated_files_regex
           /.*\.txt$/,
           /.*\.in$/,
           /^setup\.py$/,
+          /^setup\.cfg$/,
           /^pyproject\.toml$/,
           /^pyproject\.lock$/
         ]
@@ -113,8 +114,9 @@ def check_required_files
         return if pipfile
         return if pyproject
         return if get_original_file("setup.py")
+        return if get_original_file("setup.cfg")
 
-        raise "No requirements.txt or setup.py!"
+        raise "Missing required files!"
       end
 
       def pipfile
diff --git a/python/lib/dependabot/python/update_checker/requirements_updater.rb b/python/lib/dependabot/python/update_checker/requirements_updater.rb
index 903b7cf088e..6c977cd89db 100644
--- a/python/lib/dependabot/python/update_checker/requirements_updater.rb
+++ b/python/lib/dependabot/python/update_checker/requirements_updater.rb
@@ -32,7 +32,7 @@ def initialize(requirements:, update_strategy:, has_lockfile:,
         def updated_requirements
           requirements.map do |req|
             case req[:file]
-            when "setup.py" then updated_setup_requirement(req)
+            when /setup\.(?:py|cfg)$/ then updated_setup_requirement(req)
             when "pyproject.toml" then updated_pyproject_requirement(req)
             when "Pipfile" then updated_pipfile_requirement(req)
             when /\.txt$|\.in$/ then updated_requirement(req)
diff --git a/python/spec/dependabot/python/file_fetcher_spec.rb b/python/spec/dependabot/python/file_fetcher_spec.rb
index 0f51cd841d9..de70f4a74ec 100644
--- a/python/spec/dependabot/python/file_fetcher_spec.rb
+++ b/python/spec/dependabot/python/file_fetcher_spec.rb
@@ -20,6 +20,11 @@
       it { is_expected.to eq(true) }
     end
 
+    context "with only a setup.cfg" do
+      let(:filenames) { %w(setup.cfg) }
+      it { is_expected.to eq(true) }
+    end
+
     context "with only a requirements folder" do
       let(:filenames) { %w(requirements) }
       it { is_expected.to eq(true) }
@@ -211,6 +216,27 @@
       end
     end
 
+    context "with only a setup.cfg file" do
+      let(:repo_contents) do
+        fixture("github", "contents_python_only_setup_cfg.json")
+      end
+      before do
+        stub_request(:get, url + "setup.cfg?ref=sha").
+          with(headers: { "Authorization" => "token token" }).
+          to_return(
+            status: 200,
+            body: fixture("github", "setup_cfg_content.json"),
+            headers: { "content-type" => "application/json" }
+          )
+      end
+
+      it "fetches the setup.cfg file" do
+        expect(file_fetcher_instance.files.count).to eq(1)
+        expect(file_fetcher_instance.files.map(&:name)).
+          to eq(["setup.cfg"])
+      end
+    end
+
     context "with only a Pipfile and Pipfile.lock" do
       let(:repo_contents) do
         fixture("github", "contents_python_only_pipfile_and_lockfile.json")
diff --git a/python/spec/dependabot/python/file_parser/setup_file_parser_spec.rb b/python/spec/dependabot/python/file_parser/setup_file_parser_spec.rb
index 46e904e8bd7..60676db82bc 100644
--- a/python/spec/dependabot/python/file_parser/setup_file_parser_spec.rb
+++ b/python/spec/dependabot/python/file_parser/setup_file_parser_spec.rb
@@ -7,144 +7,257 @@
 RSpec.describe Dependabot::Python::FileParser::SetupFileParser do
   let(:parser) { described_class.new(dependency_files: files) }
 
-  let(:files) { [setup_file] }
-  let(:setup_file) do
-    Dependabot::DependencyFile.new(
-      name: "setup.py",
-      content: setup_file_body
-    )
-  end
-  let(:setup_file_body) do
-    fixture("setup_files", setup_file_fixture_name)
-  end
-  let(:setup_file_fixture_name) { "setup.py" }
+  describe "for setup.py" do
+    let(:files) { [setup_file] }
+    let(:setup_file) do
+      Dependabot::DependencyFile.new(
+        name: "setup.py",
+        content: setup_file_body
+      )
+    end
+    let(:setup_file_body) do
+      fixture("setup_files", setup_file_fixture_name)
+    end
+    let(:setup_file_fixture_name) { "setup.py" }
 
-  describe "parse" do
-    subject(:dependencies) { parser.dependency_set.dependencies }
+    describe "parse" do
+      subject(:dependencies) { parser.dependency_set.dependencies }
 
-    its(:length) { is_expected.to eq(15) }
+      its(:length) { is_expected.to eq(15) }
 
-    describe "an install_requires dependencies" do
-      subject(:dependency) { dependencies.find { |d| d.name == "boto3" } }
+      describe "an install_requires dependencies" do
+        subject(:dependency) { dependencies.find { |d| d.name == "boto3" } }
 
-      it "has the right details" do
-        expect(dependency).to be_a(Dependabot::Dependency)
-        expect(dependency.name).to eq("boto3")
-        expect(dependency.version).to eq("1.3.1")
-        expect(dependency.requirements).to eq(
-          [{
-            requirement: "==1.3.1",
-            file: "setup.py",
-            groups: ["install_requires"],
-            source: nil
-          }]
-        )
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("boto3")
+          expect(dependency.version).to eq("1.3.1")
+          expect(dependency.requirements).to eq(
+            [{
+              requirement: "==1.3.1",
+              file: "setup.py",
+              groups: ["install_requires"],
+              source: nil
+            }]
+          )
+        end
       end
-    end
 
-    describe "a setup_requires dependencies" do
-      subject(:dependency) { dependencies.find { |d| d.name == "numpy" } }
-
-      it "has the right details" do
-        expect(dependency).to be_a(Dependabot::Dependency)
-        expect(dependency.name).to eq("numpy")
-        expect(dependency.version).to eq("1.11.0")
-        expect(dependency.requirements).to eq(
-          [{
-            requirement: "==1.11.0",
-            file: "setup.py",
-            groups: ["setup_requires"],
-            source: nil
-          }]
-        )
+      describe "a setup_requires dependencies" do
+        subject(:dependency) { dependencies.find { |d| d.name == "numpy" } }
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("numpy")
+          expect(dependency.version).to eq("1.11.0")
+          expect(dependency.requirements).to eq(
+            [{
+              requirement: "==1.11.0",
+              file: "setup.py",
+              groups: ["setup_requires"],
+              source: nil
+            }]
+          )
+        end
       end
-    end
 
-    describe "a tests_require dependencies" do
-      subject(:dependency) { dependencies.find { |d| d.name == "responses" } }
-
-      it "has the right details" do
-        expect(dependency).to be_a(Dependabot::Dependency)
-        expect(dependency.name).to eq("responses")
-        expect(dependency.version).to eq("0.5.1")
-        expect(dependency.requirements).to eq(
-          [{
-            requirement: "==0.5.1",
-            file: "setup.py",
-            groups: ["tests_require"],
-            source: nil
-          }]
-        )
+      describe "a tests_require dependencies" do
+        subject(:dependency) { dependencies.find { |d| d.name == "responses" } }
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("responses")
+          expect(dependency.version).to eq("0.5.1")
+          expect(dependency.requirements).to eq(
+            [{
+              requirement: "==0.5.1",
+              file: "setup.py",
+              groups: ["tests_require"],
+              source: nil
+            }]
+          )
+        end
       end
-    end
 
-    describe "an extras_require dependencies" do
-      subject(:dependency) { dependencies.find { |d| d.name == "flask" } }
-
-      it "has the right details" do
-        expect(dependency).to be_a(Dependabot::Dependency)
-        expect(dependency.name).to eq("flask")
-        expect(dependency.version).to eq("0.12.2")
-        expect(dependency.requirements).to eq(
-          [{
-            requirement: "==0.12.2",
-            file: "setup.py",
-            groups: ["extras_require:API"],
-            source: nil
-          }]
-        )
+      describe "an extras_require dependencies" do
+        subject(:dependency) { dependencies.find { |d| d.name == "flask" } }
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("flask")
+          expect(dependency.version).to eq("0.12.2")
+          expect(dependency.requirements).to eq(
+            [{
+              requirement: "==0.12.2",
+              file: "setup.py",
+              groups: ["extras_require:API"],
+              source: nil
+            }]
+          )
+        end
       end
-    end
 
-    context "without a `tests_require` key" do
-      let(:setup_file_fixture_name) { "no_tests_require.py" }
-      its(:length) { is_expected.to eq(12) }
-    end
+      context "without a `tests_require` key" do
+        let(:setup_file_fixture_name) { "no_tests_require.py" }
+        its(:length) { is_expected.to eq(12) }
+      end
 
-    context "with a `print` statement" do
-      let(:setup_file_fixture_name) { "with_print.py" }
-      its(:length) { is_expected.to eq(14) }
-    end
+      context "with a `print` statement" do
+        let(:setup_file_fixture_name) { "with_print.py" }
+        its(:length) { is_expected.to eq(14) }
+      end
 
-    context "with an import statements that can't be handled" do
-      let(:setup_file_fixture_name) { "impossible_imports.py" }
-      its(:length) { is_expected.to eq(12) }
-    end
+      context "with an import statements that can't be handled" do
+        let(:setup_file_fixture_name) { "impossible_imports.py" }
+        its(:length) { is_expected.to eq(12) }
+      end
+
+      context "with an illformed_requirement" do
+        let(:setup_file_fixture_name) { "illformed_req.py" }
+
+        it "raises a helpful error" do
+          expect { parser.dependency_set }.
+            to raise_error do |error|
+              expect(error.class).
+                to eq(Dependabot::DependencyFileNotEvaluatable)
+              expect(error.message).
+                to eq('Illformed requirement ["==2.6.1raven==5.32.0"]')
+            end
+        end
+      end
+
+      context "with an `open` statement" do
+        let(:setup_file_fixture_name) { "with_open.py" }
+        its(:length) { is_expected.to eq(14) }
+      end
+
+      context "with the setup.py from requests" do
+        let(:setup_file_fixture_name) { "requests_setup.py" }
+        its(:length) { is_expected.to eq(13) }
+      end
+
+      context "with an import of a config file" do
+        let(:setup_file_fixture_name) { "imports_version.py" }
+        its(:length) { is_expected.to eq(14) }
 
-    context "with an illformed_requirement" do
-      let(:setup_file_fixture_name) { "illformed_req.py" }
+        context "with a inserted version" do
+          let(:setup_file_fixture_name) { "imports_version_for_dep.py" }
 
-      it "raises a helpful error" do
-        expect { parser.dependency_set }.
-          to raise_error do |error|
-            expect(error.class).
-              to eq(Dependabot::DependencyFileNotEvaluatable)
-            expect(error.message).
-              to eq('Illformed requirement ["==2.6.1raven==5.32.0"]')
+          it "excludes the dependency importing a version" do
+            expect(dependencies.count).to eq(14)
+            expect(dependencies.map(&:name)).to_not include("acme")
           end
+        end
       end
     end
+  end
 
-    context "with an `open` statement" do
-      let(:setup_file_fixture_name) { "with_open.py" }
-      its(:length) { is_expected.to eq(14) }
+  describe "for setup.cfg" do
+    let(:files) { [setup_cfg_file] }
+    let(:setup_cfg_file) do
+      Dependabot::DependencyFile.new(
+        name: "setup.cfg",
+        content: setup_cfg_file_body
+      )
     end
-
-    context "with the setup.py from requests" do
-      let(:setup_file_fixture_name) { "requests_setup.py" }
-      its(:length) { is_expected.to eq(13) }
+    let(:setup_cfg_file_body) do
+      fixture("setup_files", setup_cfg_file_fixture_name)
     end
+    let(:setup_cfg_file_fixture_name) { "setup_with_requires.cfg" }
+
+    describe "parse" do
+      subject(:dependencies) { parser.dependency_set.dependencies }
+
+      its(:length) { is_expected.to eq(15) }
+
+      describe "an install_requires dependencies" do
+        subject(:dependency) { dependencies.find { |d| d.name == "boto3" } }
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("boto3")
+          expect(dependency.version).to eq("1.3.1")
+          expect(dependency.requirements).to eq(
+            [{
+              requirement: "==1.3.1",
+              file: "setup.cfg",
+              groups: ["install_requires"],
+              source: nil
+            }]
+          )
+        end
+      end
 
-    context "with an import of a config file" do
-      let(:setup_file_fixture_name) { "imports_version.py" }
-      its(:length) { is_expected.to eq(14) }
+      describe "a setup_requires dependencies" do
+        subject(:dependency) { dependencies.find { |d| d.name == "numpy" } }
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("numpy")
+          expect(dependency.version).to eq("1.11.0")
+          expect(dependency.requirements).to eq(
+            [{
+              requirement: "==1.11.0",
+              file: "setup.cfg",
+              groups: ["setup_requires"],
+              source: nil
+            }]
+          )
+        end
+      end
+
+      describe "a tests_require dependencies" do
+        subject(:dependency) { dependencies.find { |d| d.name == "responses" } }
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("responses")
+          expect(dependency.version).to eq("0.5.1")
+          expect(dependency.requirements).to eq(
+            [{
+              requirement: "==0.5.1",
+              file: "setup.cfg",
+              groups: ["tests_require"],
+              source: nil
+            }]
+          )
+        end
+      end
+
+      describe "an extras_require dependencies" do
+        subject(:dependency) { dependencies.find { |d| d.name == "flask" } }
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("flask")
+          expect(dependency.version).to eq("0.12.2")
+          expect(dependency.requirements).to eq(
+            [{
+              requirement: "==0.12.2",
+              file: "setup.cfg",
+              groups: ["extras_require:api"],
+              source: nil
+            }]
+          )
+        end
+      end
+
+      context "without a `tests_require` key" do
+        let(:setup_cfg_file_fixture_name) { "no_tests_require.cfg" }
+        its(:length) { is_expected.to eq(12) }
+      end
 
-      context "with a inserted version" do
-        let(:setup_file_fixture_name) { "imports_version_for_dep.py" }
+      context "with an illformed_requirement" do
+        let(:setup_cfg_file_fixture_name) { "illformed_req.cfg" }
 
-        it "excludes the dependency importing a version" do
-          expect(dependencies.count).to eq(14)
-          expect(dependencies.map(&:name)).to_not include("acme")
+        it "raises a helpful error" do
+          expect { parser.dependency_set }.
+            to raise_error do |error|
+              expect(error.class).
+                to eq(Dependabot::DependencyFileNotEvaluatable)
+              expect(error.message).
+                to eq("InstallationError(\"Invalid requirement: 'psycopg2==2.6.1raven == 5.32.0'\")")
+            end
         end
       end
     end
diff --git a/python/spec/dependabot/python/file_parser_spec.rb b/python/spec/dependabot/python/file_parser_spec.rb
index 2fdc123bd37..6fb4f792126 100644
--- a/python/spec/dependabot/python/file_parser_spec.rb
+++ b/python/spec/dependabot/python/file_parser_spec.rb
@@ -979,6 +979,92 @@
       end
     end
 
+    context "with a setup.cfg" do
+      let(:files) { [setup_cfg_file] }
+      let(:setup_cfg_file) do
+        Dependabot::DependencyFile.new(
+          name: "setup.cfg",
+          content: fixture("setup_files", "setup_with_requires.cfg")
+        )
+      end
+
+      its(:length) { is_expected.to eq(15) }
+
+      describe "an install_requires dependencies" do
+        subject(:dependency) { dependencies.find { |d| d.name == "boto3" } }
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("boto3")
+          expect(dependency.version).to eq("1.3.1")
+          expect(dependency.requirements).to eq(
+            [{
+              requirement: "==1.3.1",
+              file: "setup.cfg",
+              groups: ["install_requires"],
+              source: nil
+            }]
+          )
+        end
+      end
+
+      context "with markers" do
+        let(:setup_cfg_file) do
+          Dependabot::DependencyFile.new(
+            name: "setup.cfg",
+            content: fixture("setup_files", "markers.cfg")
+          )
+        end
+
+        describe "a dependency with markers" do
+          subject(:dependency) { dependencies.find { |d| d.name == "boto3" } }
+
+          it "has the right details" do
+            expect(dependency).to be_a(Dependabot::Dependency)
+            expect(dependency.name).to eq("boto3")
+            expect(dependency.version).to eq("1.3.1")
+            expect(dependency.requirements).to eq(
+              [{
+                requirement: "==1.3.1",
+                file: "setup.cfg",
+                groups: ["install_requires"],
+                source: nil
+              }]
+            )
+          end
+        end
+      end
+
+      context "with extras" do
+        let(:setup_cfg_file) do
+          Dependabot::DependencyFile.new(
+            name: "setup.cfg",
+            content: fixture("setup_files", "extras.cfg")
+          )
+        end
+
+        describe "a dependency with extras" do
+          subject(:dependency) do
+            dependencies.find { |d| d.name == "requests[security]" }
+          end
+
+          it "has the right details" do
+            expect(dependency).to be_a(Dependabot::Dependency)
+            expect(dependency.name).to eq("requests[security]")
+            expect(dependency.version).to be_nil
+            expect(dependency.requirements).to eq(
+              [{
+                requirement: "==2.12.*",
+                file: "setup.cfg",
+                groups: ["install_requires"],
+                source: nil
+              }]
+            )
+          end
+        end
+      end
+    end
+
     context "with a Pipfile and Pipfile.lock" do
       let(:files) { [pipfile, lockfile] }
       let(:pipfile) do
diff --git a/python/spec/dependabot/python/file_updater/requirement_file_updater_spec.rb b/python/spec/dependabot/python/file_updater/requirement_file_updater_spec.rb
index 531975abc3d..909531cc83e 100644
--- a/python/spec/dependabot/python/file_updater/requirement_file_updater_spec.rb
+++ b/python/spec/dependabot/python/file_updater/requirement_file_updater_spec.rb
@@ -434,6 +434,113 @@
       end
     end
 
+    context "with only a setup.cfg" do
+      subject(:updated_setup_cfg_file) do
+        updated_files.find { |f| f.name == "setup.cfg" }
+      end
+      let(:dependency_files) { [setup_cfg] }
+      let(:setup_cfg) do
+        Dependabot::DependencyFile.new(
+          content: fixture("setup_files", "setup_with_requires.cfg"),
+          name: "setup.cfg"
+        )
+      end
+      let(:dependency) do
+        Dependabot::Dependency.new(
+          name: "psycopg2",
+          version: "2.8.1",
+          requirements: [{
+            file: "setup.cfg",
+            requirement: "==2.8.1",
+            groups: [],
+            source: nil
+          }],
+          previous_requirements: [{
+            file: "setup.cfg",
+            requirement: "==2.6.1",
+            groups: [],
+            source: nil
+          }],
+          package_manager: "pip"
+        )
+      end
+
+      its(:content) { is_expected.to include "psycopg2==2.8.1\n" }
+      its(:content) { is_expected.to include "pep8==1.7.0" }
+
+      context "with non-standard formatting" do
+        let(:dependency) do
+          Dependabot::Dependency.new(
+            name: "raven",
+            version: "5.34.0",
+            requirements: [{
+              file: "setup.cfg",
+              requirement: "==5.34.0",
+              groups: [],
+              source: nil
+            }],
+            previous_requirements: [{
+              file: "setup.cfg",
+              requirement: "==5.32.0",
+              groups: [],
+              source: nil
+            }],
+            package_manager: "pip"
+          )
+        end
+
+        its(:content) { is_expected.to include "raven == 5.34.0\n" }
+      end
+
+      context "with a prefix-matcher" do
+        let(:dependency) do
+          Dependabot::Dependency.new(
+            name: "requests",
+            version: nil,
+            requirements: [{
+              file: "setup.cfg",
+              requirement: "==2.13.*",
+              groups: [],
+              source: nil
+            }],
+            previous_requirements: [{
+              file: "setup.cfg",
+              requirement: "==2.12.*",
+              groups: [],
+              source: nil
+            }],
+            package_manager: "pip"
+          )
+        end
+
+        its(:content) { is_expected.to include "requests==2.13.*\n" }
+      end
+
+      context "with a range requirement" do
+        let(:dependency) do
+          Dependabot::Dependency.new(
+            name: "flake8",
+            version: nil,
+            requirements: [{
+              file: "setup.cfg",
+              requirement: ">2.5.4,<3.4.0",
+              groups: [],
+              source: nil
+            }],
+            previous_requirements: [{
+              file: "setup.cfg",
+              requirement: "<3.0.0,>2.5.4",
+              groups: [],
+              source: nil
+            }],
+            package_manager: "pip"
+          )
+        end
+
+        its(:content) { is_expected.to include "flake8 > 2.5.4, < 3.4.0\n" }
+      end
+    end
+
     context "when the dependency is in constraints.txt and requirement.txt" do
       let(:dependency_files) { [requirements, constraints] }
       let(:requirements_fixture_name) { "specific_with_constraints.txt" }
diff --git a/python/spec/dependabot/python/update_checker/requirements_updater_spec.rb b/python/spec/dependabot/python/update_checker/requirements_updater_spec.rb
index ff00393f0f0..afb4cb99962 100644
--- a/python/spec/dependabot/python/update_checker/requirements_updater_spec.rb
+++ b/python/spec/dependabot/python/update_checker/requirements_updater_spec.rb
@@ -14,7 +14,7 @@
   end
 
   let(:update_strategy) { :bump_versions }
-  let(:requirements) { [requirement_txt_req, setup_py_req].compact }
+  let(:requirements) { [requirement_txt_req, setup_py_req, setup_cfg_req].compact }
   let(:requirement_txt_req) do
     {
       file: "requirements.txt",
@@ -31,8 +31,17 @@
       source: nil
     }
   end
+  let(:setup_cfg_req) do
+    {
+      file: "setup.cfg",
+      requirement: setup_cfg_req_string,
+      groups: [],
+      source: nil
+    }
+  end
   let(:requirement_txt_req_string) { "==1.4.0" }
   let(:setup_py_req_string) { ">= 1.4.0" }
+  let(:setup_cfg_req_string) { ">= 1.4.0" }
   let(:has_lockfile) { true }
 
   let(:latest_resolvable_version) { "1.5.0" }
@@ -253,6 +262,93 @@
       end
     end
 
+    context "for a setup.cfg dependency" do
+      subject { updated_requirements.find { |r| r[:file] == "setup.cfg" } }
+
+      context "when there is no resolvable version" do
+        let(:latest_resolvable_version) { nil }
+        it { is_expected.to eq(setup_cfg_req) }
+      end
+
+      context "when there is a resolvable version" do
+        let(:latest_resolvable_version) { "1.5.0" }
+
+        context "and a full version was previously pinned" do
+          let(:setup_cfg_req_string) { "==1.4.0" }
+          its([:requirement]) { is_expected.to eq("==1.5.0") }
+
+          context "that has fewer digits than the new version" do
+            let(:setup_cfg_req_string) { "==1.4.0" }
+            let(:latest_resolvable_version) { "1.5.0.1" }
+            its([:requirement]) { is_expected.to eq("==1.5.0.1") }
+          end
+
+          context "without leading == (technically invalid)" do
+            let(:setup_cfg_req_string) { "1.4.0" }
+            its([:requirement]) { is_expected.to eq("1.5.0") }
+          end
+        end
+
+        context "and no requirement was specified" do
+          let(:setup_cfg_req_string) { nil }
+          it { is_expected.to eq(setup_cfg_req) }
+        end
+
+        context "and a range requirement was specified" do
+          let(:setup_cfg_req_string) { ">=1.3.0" }
+          it { is_expected.to eq(setup_cfg_req) }
+
+          context "that is too high" do
+            let(:setup_cfg_req_string) { ">=2.0.0" }
+            its([:requirement]) { is_expected.to eq(:unfixable) }
+          end
+
+          context "with an upper bound" do
+            let(:setup_cfg_req_string) { ">=1.3.0, <=1.5.0" }
+            it { is_expected.to eq(setup_cfg_req) }
+
+            context "that needs updating" do
+              let(:setup_cfg_req_string) { ">=1.3.0, <1.5" }
+              its([:requirement]) { is_expected.to eq(">=1.3.0,<1.6") }
+            end
+          end
+        end
+
+        context "and a compatibility requirement was specified" do
+          let(:setup_cfg_req_string) { "~=1.3.0" }
+          its([:requirement]) { is_expected.to eq(">=1.3,<1.6") }
+
+          context "that supports the new version" do
+            let(:setup_cfg_req_string) { "~=1.3" }
+            it { is_expected.to eq(setup_cfg_req) }
+          end
+
+          context "that needs to be updated and maintain its precision" do
+            let(:setup_cfg_req_string) { "~=1.3" }
+            let(:latest_resolvable_version) { "2.1.0" }
+            its([:requirement]) { is_expected.to eq(">=1.3,<3.0") }
+          end
+        end
+
+        context "and a prefix match was specified" do
+          context "that is satisfied" do
+            let(:setup_cfg_req_string) { "==1.*.*" }
+            it { is_expected.to eq(setup_cfg_req) }
+          end
+
+          context "that needs updating" do
+            let(:setup_cfg_req_string) { "==1.4.*" }
+            its([:requirement]) { is_expected.to eq(">=1.4,<1.6") }
+          end
+
+          context "along with an exact match" do
+            let(:setup_cfg_req_string) { "==1.4.*, ==1.4.1" }
+            its([:requirement]) { is_expected.to eq("==1.5.0") }
+          end
+        end
+      end
+    end
+
     context "for a pyproject.toml dependency" do
       let(:requirements) { [pyproject_req].compact }
       let(:pyproject_req) do
diff --git a/python/spec/fixtures/github/contents_python_only_setup_cfg.json b/python/spec/fixtures/github/contents_python_only_setup_cfg.json
new file mode 100644
index 00000000000..4fed78216f7
--- /dev/null
+++ b/python/spec/fixtures/github/contents_python_only_setup_cfg.json
@@ -0,0 +1,418 @@
+[
+  {
+    "name": ".codeclimate.yml",
+    "path": ".codeclimate.yml",
+    "sha": "6393602fac96cfe31d64f89476014124b4a13b85",
+    "size": 416,
+    "url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.codeclimate.yml?ref=develop",
+    "html_url": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.codeclimate.yml",
+    "git_url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/6393602fac96cfe31d64f89476014124b4a13b85",
+    "download_url": "https://raw.githubusercontent.com/CityOfNewYork/NYCOpenRecords/develop/.codeclimate.yml",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.codeclimate.yml?ref=develop",
+      "git": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/6393602fac96cfe31d64f89476014124b4a13b85",
+      "html": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.codeclimate.yml"
+    }
+  },
+  {
+    "name": ".coveragerc",
+    "path": ".coveragerc",
+    "sha": "be7fdc86067d0924f3e1e92c1a3ed92d9486fcbb",
+    "size": 646,
+    "url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.coveragerc?ref=develop",
+    "html_url": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.coveragerc",
+    "git_url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/be7fdc86067d0924f3e1e92c1a3ed92d9486fcbb",
+    "download_url": "https://raw.githubusercontent.com/CityOfNewYork/NYCOpenRecords/develop/.coveragerc",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.coveragerc?ref=develop",
+      "git": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/be7fdc86067d0924f3e1e92c1a3ed92d9486fcbb",
+      "html": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.coveragerc"
+    }
+  },
+  {
+    "name": ".csslintrc",
+    "path": ".csslintrc",
+    "sha": "aacba956e5bbede1c195ce554fcad3e200b24ff8",
+    "size": 107,
+    "url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.csslintrc?ref=develop",
+    "html_url": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.csslintrc",
+    "git_url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/aacba956e5bbede1c195ce554fcad3e200b24ff8",
+    "download_url": "https://raw.githubusercontent.com/CityOfNewYork/NYCOpenRecords/develop/.csslintrc",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.csslintrc?ref=develop",
+      "git": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/aacba956e5bbede1c195ce554fcad3e200b24ff8",
+      "html": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.csslintrc"
+    }
+  },
+  {
+    "name": ".env.example",
+    "path": ".env.example",
+    "sha": "d9f599b33ecd834ea88979dcc3daf4fcafacf4e7",
+    "size": 2617,
+    "url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.env.example?ref=develop",
+    "html_url": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.env.example",
+    "git_url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/d9f599b33ecd834ea88979dcc3daf4fcafacf4e7",
+    "download_url": "https://raw.githubusercontent.com/CityOfNewYork/NYCOpenRecords/develop/.env.example",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.env.example?ref=develop",
+      "git": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/d9f599b33ecd834ea88979dcc3daf4fcafacf4e7",
+      "html": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.env.example"
+    }
+  },
+  {
+    "name": ".eslintignore",
+    "path": ".eslintignore",
+    "sha": "96212a3593bac8c93f624b77185a8d11018efd96",
+    "size": 16,
+    "url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.eslintignore?ref=develop",
+    "html_url": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.eslintignore",
+    "git_url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/96212a3593bac8c93f624b77185a8d11018efd96",
+    "download_url": "https://raw.githubusercontent.com/CityOfNewYork/NYCOpenRecords/develop/.eslintignore",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.eslintignore?ref=develop",
+      "git": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/96212a3593bac8c93f624b77185a8d11018efd96",
+      "html": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.eslintignore"
+    }
+  },
+  {
+    "name": ".eslintrc.yml",
+    "path": ".eslintrc.yml",
+    "sha": "a6a0ce9c44238e06ff55ca335a66a4e16810da38",
+    "size": 6056,
+    "url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.eslintrc.yml?ref=develop",
+    "html_url": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.eslintrc.yml",
+    "git_url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/a6a0ce9c44238e06ff55ca335a66a4e16810da38",
+    "download_url": "https://raw.githubusercontent.com/CityOfNewYork/NYCOpenRecords/develop/.eslintrc.yml",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.eslintrc.yml?ref=develop",
+      "git": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/a6a0ce9c44238e06ff55ca335a66a4e16810da38",
+      "html": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.eslintrc.yml"
+    }
+  },
+  {
+    "name": ".gitignore",
+    "path": ".gitignore",
+    "sha": "93923ac3a463bd17d0aefca2de9d2810f243d747",
+    "size": 1073,
+    "url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.gitignore?ref=develop",
+    "html_url": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.gitignore",
+    "git_url": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/93923ac3a463bd17d0aefca2de9d2810f243d747",
+    "download_url": "https://raw.githubusercontent.com/CityOfNewYork/NYCOpenRecords/develop/.gitignore",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/contents/.gitignore?ref=develop",
+      "git": "https://api.github.com/repos/CityOfNewYork/NYCOpenRecords/git/blobs/93923ac3a463bd17d0aefca2de9d2810f243d747",
+      "html": "https://github.com/CityOfNewYork/NYCOpenRecords/blob/develop/.gitignore"
+    }
+  },
+  {
+    "name": "LICENSE.md",
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+  "content": "W21ldGFkYXRhXQpuYW1lID0gcHl0aG9uLXBhY2thZ2UKdmVyc2lvbiA9IDAuMApkZXNjcmlwdGlv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\nbnMuZXh0cmFzX3JlcXVpcmVdCkFQSSA9IGZsYXNrPT0wLjEyLjIK\n",
+  "encoding": "base64",
+  "_links": {
+    "self": "https://api.github.com/repos/gocardless/bump/contents/setup.cfg?ref=master",
+    "git": "https://api.github.com/repos/gocardless/bump/git/blobs/a99ba2c724c136387dc17eefcda2f9c003b5d705",
+    "html": "https://github.com/gocardless/bump/blob/master/setup.cfg"
+  }
+}
diff --git a/python/spec/fixtures/setup_files/extras.cfg b/python/spec/fixtures/setup_files/extras.cfg
new file mode 100644
index 00000000000..1b5c2078a8d
--- /dev/null
+++ b/python/spec/fixtures/setup_files/extras.cfg
@@ -0,0 +1,23 @@
+[metadata]
+name = python-package
+version = 0.0
+description = Example setup.cfg
+url = httos://github.com/example/python-package
+author = Dependabot
+
+[options]
+packages = find:
+setup_requires =
+    numpy==1.11.0
+    pytest-runner
+install_requires =
+    requests[security] == 2.12.*
+    scipy==0.18.1
+    scikit-learn==0.18.1
+
+tests_require =
+    pytest==2.9.1
+    responses==0.5.1
+
+[options.extras_require]
+API = flask==0.12.2
diff --git a/python/spec/fixtures/setup_files/illformed_req.cfg b/python/spec/fixtures/setup_files/illformed_req.cfg
new file mode 100644
index 00000000000..a07d919e87f
--- /dev/null
+++ b/python/spec/fixtures/setup_files/illformed_req.cfg
@@ -0,0 +1,29 @@
+[metadata]
+name = python-package
+version = 0.0
+description = Example setup.cfg
+url = httos://github.com/example/python-package
+author = Dependabot
+
+[options]
+packages = find:
+setup_requires =
+    numpy==1.11.0
+    pytest-runner
+install_requires =
+    boto3==1.3.1
+    flake8 > 2.5.4, < 3.0.0
+    gocardless_pro
+    pandas==0.19.2
+    pep8==1.7.0
+    psycopg2==2.6.1raven == 5.32.0
+    requests==2.12.*
+    scipy==0.18.1
+    scikit-learn==0.18.1
+
+tests_require =
+    pytest==2.9.1
+    responses==0.5.1
+
+[options.extras_require]
+API = flask==0.12.2
diff --git a/python/spec/fixtures/setup_files/markers.cfg b/python/spec/fixtures/setup_files/markers.cfg
new file mode 100644
index 00000000000..0163ee9ac6b
--- /dev/null
+++ b/python/spec/fixtures/setup_files/markers.cfg
@@ -0,0 +1,31 @@
+[metadata]
+name = python-package
+version = 0.0
+description = Example setup.cfg
+url = httos://github.com/example/python-package
+author = Dependabot
+
+[options]
+packages = find:
+setup_requires =
+    numpy==1.11.0
+    pytest-runner
+install_requires =
+    boto3==1.3.1;python_version<="2.6"
+    boto3==1.3.1;python_version>="2.7"
+    flake8 > 2.5.4, < 3.0.0
+    gocardless_pro
+    pandas==0.19.2
+    pep8==1.7.0
+    psycopg2==2.6.1
+    raven == 5.32.0
+    requests==2.12.*
+    scipy==0.18.1
+    scikit-learn==0.18.1
+
+tests_require =
+    pytest==2.9.1
+    responses==0.5.1
+
+[options.extras_require]
+API = flask==0.12.2
diff --git a/python/spec/fixtures/setup_files/no_tests_require.cfg b/python/spec/fixtures/setup_files/no_tests_require.cfg
new file mode 100644
index 00000000000..dcc0de1ce0d
--- /dev/null
+++ b/python/spec/fixtures/setup_files/no_tests_require.cfg
@@ -0,0 +1,23 @@
+[metadata]
+name = python-package
+version = 0.0
+description = Example setup.cfg
+url = httos://github.com/example/python-package
+author = Dependabot
+
+[options]
+packages = find:
+setup_requires =
+    numpy==1.11.0
+    pytest-runner
+install_requires =
+    boto3==1.3.1
+    flake8 > 2.5.4, < 3.0.0
+    gocardless_pro
+    pandas==0.19.2
+    pep8==1.7.0
+    psycopg2==2.6.1
+    raven == 5.32.0
+    requests==2.12.*
+    scipy==0.18.1
+    scikit-learn==0.18.1
diff --git a/python/spec/fixtures/setup_files/setup_with_requires.cfg b/python/spec/fixtures/setup_files/setup_with_requires.cfg
new file mode 100644
index 00000000000..6ff01959226
--- /dev/null
+++ b/python/spec/fixtures/setup_files/setup_with_requires.cfg
@@ -0,0 +1,30 @@
+[metadata]
+name = python-package
+version = 0.0
+description = Example setup.cfg
+url = httos://github.com/example/python-package
+author = Dependabot
+
+[options]
+packages = find:
+setup_requires =
+    numpy==1.11.0
+    pytest-runner
+install_requires =
+    boto3==1.3.1
+    flake8 > 2.5.4, < 3.0.0
+    gocardless_pro
+    pandas==0.19.2
+    pep8==1.7.0
+    psycopg2==2.6.1
+    raven == 5.32.0
+    requests==2.12.*
+    scipy==0.18.1
+    scikit-learn==0.18.1
+
+tests_require =
+    pytest==2.9.1
+    responses==0.5.1
+
+[options.extras_require]
+API = flask==0.12.2