diff --git a/syft/pkg/cataloger/python/cataloger_test.go b/syft/pkg/cataloger/python/cataloger_test.go
index 906d469e1..49d7ec5a7 100644
--- a/syft/pkg/cataloger/python/cataloger_test.go
+++ b/syft/pkg/cataloger/python/cataloger_test.go
@@ -716,10 +716,15 @@ func Test_PackageCataloger_SitePackageRelationships(t *testing.T) {
 				"certifi @ 2020.12.5 (/usr/local/lib/python3.9/dist-packages) [dependency-of] requests @ 2.25.0 (/usr/local/lib/python3.9/dist-packages)",
 				"certifi @ 2020.12.5 (/usr/local/lib/python3.9/dist-packages) [dependency-of] urllib3 @ 1.26.18 (/usr/local/lib/python3.9/dist-packages)", // available when extra == "secure", but another dependency is primarily installing it
 				"chardet @ 3.0.4 (/usr/local/lib/python3.9/dist-packages) [dependency-of] requests @ 2.25.0 (/usr/local/lib/python3.9/dist-packages)",
+				"distlib @ 0.3.9 (/usr/local/lib/python3.9/dist-packages) [dependency-of] virtualenv @ 20.31.2 (/usr/local/lib/python3.9/dist-packages)",
+				"filelock @ 3.18.0 (/usr/local/lib/python3.9/dist-packages) [dependency-of] virtualenv @ 20.31.2 (/usr/local/lib/python3.9/dist-packages)",
 				"idna @ 2.10 (/usr/local/lib/python3.9/dist-packages) [dependency-of] requests @ 2.25.0 (/usr/local/lib/python3.9/dist-packages)",
+				"idna @ 2.10 (/usr/local/lib/python3.9/dist-packages) [dependency-of] urllib3 @ 1.26.18 (/usr/local/lib/python3.9/dist-packages)", // available when extra == "secure", but another dependency is primarily installing it
+				"platformdirs @ 4.3.8 (/usr/local/lib/python3.9/dist-packages) [dependency-of] virtualenv @ 20.31.2 (/usr/local/lib/python3.9/dist-packages)",
 				"six @ 1.16.0 (/usr/local/lib/python3.9/dist-packages) [dependency-of] blessed @ 1.20.0 (/usr/local/lib/python3.9/dist-packages)",
 				"soupsieve @ 2.2.1 (/usr/local/lib/python3.9/dist-packages) [dependency-of] beautifulsoup4 @ 4.9.3 (/usr/local/lib/python3.9/dist-packages)",
 				"urllib3 @ 1.26.18 (/usr/local/lib/python3.9/dist-packages) [dependency-of] requests @ 2.25.0 (/usr/local/lib/python3.9/dist-packages)",
+				"virtualenv @ 20.31.2 (/usr/local/lib/python3.9/dist-packages) [dependency-of] filelock @ 3.18.0 (/usr/local/lib/python3.9/dist-packages)", // available when extra == "testing", but we are installing it
 				"wcwidth @ 0.2.13 (/usr/local/lib/python3.9/dist-packages) [dependency-of] blessed @ 1.20.0 (/usr/local/lib/python3.9/dist-packages)",
 
 				// purely python 3.8 dist-packages
@@ -736,9 +741,14 @@ func Test_PackageCataloger_SitePackageRelationships(t *testing.T) {
 				"certifi @ 2020.12.5 (/usr/local/lib/python3.8/dist-packages) [dependency-of] requests @ 2.25.0 (/usr/local/lib/python3.8/dist-packages)",
 				"certifi @ 2020.12.5 (/usr/local/lib/python3.8/dist-packages) [dependency-of] urllib3 @ 1.26.18 (/usr/local/lib/python3.8/dist-packages)", // available when extra == "secure", but another dependency is primarily installing it
 				"chardet @ 3.0.4 (/usr/local/lib/python3.8/dist-packages) [dependency-of] requests @ 2.25.0 (/usr/local/lib/python3.8/dist-packages)",
+				"distlib @ 0.3.9 (/usr/local/lib/python3.8/dist-packages) [dependency-of] virtualenv @ 20.31.2 (/usr/local/lib/python3.8/dist-packages)",
+				"filelock @ 3.16.1 (/usr/local/lib/python3.8/dist-packages) [dependency-of] virtualenv @ 20.31.2 (/usr/local/lib/python3.8/dist-packages)",
 				"idna @ 2.10 (/usr/local/lib/python3.8/dist-packages) [dependency-of] requests @ 2.25.0 (/usr/local/lib/python3.8/dist-packages)",
+				"idna @ 2.10 (/usr/local/lib/python3.8/dist-packages) [dependency-of] urllib3 @ 1.26.18 (/usr/local/lib/python3.8/dist-packages)", // available when extra == "secure", but another dependency is primarily installing it
+				"platformdirs @ 4.3.6 (/usr/local/lib/python3.8/dist-packages) [dependency-of] virtualenv @ 20.31.2 (/usr/local/lib/python3.8/dist-packages)",
 				"soupsieve @ 2.2 (/usr/local/lib/python3.8/dist-packages) [dependency-of] beautifulsoup4 @ 4.9.2 (/usr/local/lib/python3.8/dist-packages)",
 				"urllib3 @ 1.26.18 (/usr/local/lib/python3.8/dist-packages) [dependency-of] requests @ 2.25.0 (/usr/local/lib/python3.8/dist-packages)",
+				"virtualenv @ 20.31.2 (/usr/local/lib/python3.8/dist-packages) [dependency-of] filelock @ 3.16.1 (/usr/local/lib/python3.8/dist-packages)", // available when extra == "testing", but we are installing it
 				"xmod @ 1.8.1 (/usr/local/lib/python3.8/dist-packages) [dependency-of] runs @ 1.2.2 (/usr/local/lib/python3.8/dist-packages)",
 
 				// project 1 virtual env
@@ -759,6 +769,7 @@ func Test_PackageCataloger_SitePackageRelationships(t *testing.T) {
 				"blessed @ 1.20.0 (/usr/local/lib/python3.9/dist-packages) [dependency-of] inquirer @ 3.0.0 (/app/project1/venv/lib/python3.9/site-packages)",      // note: depends on global site package!
 				"python-editor @ 1.0.4 (/usr/local/lib/python3.9/dist-packages) [dependency-of] inquirer @ 3.0.0 (/app/project1/venv/lib/python3.9/site-packages)", // note: depends on global site package!
 				"readchar @ 4.2.1 (/app/project1/venv/lib/python3.9/site-packages) [dependency-of] inquirer @ 3.0.0 (/app/project1/venv/lib/python3.9/site-packages)",
+				"setuptools @ 44.0.0 (/app/project1/venv/lib/python3.9/site-packages) [dependency-of] virtualenv @ 20.31.2 (/usr/local/lib/python3.9/dist-packages)", // available when extra == "test", but we are installing it
 				"soupsieve @ 2.3 (/app/project1/venv/lib/python3.9/site-packages) [dependency-of] beautifulsoup4 @ 4.10.0 (/app/project1/venv/lib/python3.9/site-packages)",
 
 				// project 2 virtual env
diff --git a/syft/pkg/cataloger/python/dependency.go b/syft/pkg/cataloger/python/dependency.go
index 6110281e9..53838098a 100644
--- a/syft/pkg/cataloger/python/dependency.go
+++ b/syft/pkg/cataloger/python/dependency.go
@@ -115,14 +115,16 @@ func wheelEggDependencySpecifier(p pkg.Package) dependency.Specification {
 	}
 }
 
-// extractPackageName removes any extras or version constraints from a given Requires-Dist field value (and
+// extractPackageName removes any extras, version constraints or environment markers from a given Requires-Dist field value (and
 // semantically similar fields), leaving only the package name.
 func extractPackageName(s string) string {
 	// examples:
-	// html5lib ; extra == 'html5lib'   -->  html5lib
-	// soupsieve (>1.2)					-->  soupsieve
+	// requests [security,tests]		--> requests
+	// requests >= 2.8.1			--> requests
+	// requests (>= 2.8.1)			--> requests
+	// requests ; python_version < "2.7"	--> requests
 
-	return strings.TrimSpace(internal.SplitAny(s, "(;")[0])
+	return strings.TrimSpace(internal.SplitAny(s, "[(<!=>~;")[0])
 }
 func extractPackageNames(ss []string) []string {
 	var names []string