fix: skip url defined dependencies

requirements-parser can't parse url based dependencies and exception was raised when replace was called on such deps

plug/pip_resolve.py

@@ -182,7 +182,7 @@ def get_requirements_list(requirements_file_path, dev_deps=False):
     req_list = filter(matches_environment, req_list)
     req_list = filter(is_testable, req_list)
     req_list = filter(matches_python_version, req_list)
-    required = [req.name.replace('_', '-') for req in req_list]
+    required = [req.name.replace('_', '-') for req in req_list if req.name]
     return required
 
 def create_dependencies_tree_by_req_file_path(requirements_file_path,

test/inspect.test.js

@@ -716,6 +716,24 @@ test('inspect pipenv app dev dependencies', function (t) {
     });
 });
 
+test('package names with urls are skipped', function (t) {
+  return Promise.resolve().then(function () {
+    chdirWorkspaces('pip-app-deps-with-urls');
+    var venvCreated = testUtils.ensureVirtualenv('pip-app-deps-with-urls');
+    t.teardown(testUtils.activateVirtualenv('pip-app-deps-with-urls'));
+    if (venvCreated) {
+      testUtils.pipInstall();
+    }
+  })
+    .then(function () {
+      return plugin.inspect('.', 'requirements.txt');
+    })
+    .then(function (result) {
+      var pkg = result.package;
+      t.equal(Object.keys(pkg.dependencies).length, 1, '1 dependency was skipped');
+    });
+});
+
 function chdirWorkspaces(dir) {
   process.chdir(path.resolve(__dirname, 'workspaces', dir));
 }

test/workspaces/pip-app-deps-with-urls/requirements.txt

@@ -0,0 +1,2 @@
+Jinja2==2.7.2
+https://files.pythonhosted.org/packages/d0/d7/4806fd165c27716f02a3a9c23d207854b8a3ed884db53c2781b92bd8d4f4/whl.setup-0.2-py2.py3-none-any.whl