diff --git a/src/MipsEqLogicTrait.php b/src/MipsEqLogicTrait.php
index 09933a1..8105bab 100644
--- a/src/MipsEqLogicTrait.php
+++ b/src/MipsEqLogicTrait.php
@@ -194,14 +194,15 @@ private static function getRequiredPackageDetail(string $requirementLine, &$pack
 	 * Return the installed package detail from the installed packages list if it exists
 	 *
 	 * @param string $packageName
-	 * @param string $installedPackages the list of installed packages in the format 'package==version||package==version'
+	 * @param array $installedPackages the list of installed packages
 	 * @param string[] $packageDetail if the package is installed, it will contain the following:
 	 * - [0] 'package==version'
 	 * - [1] the version
 	 * @return bool true if the package is installed, false otherwise
 	 */
-	private static function getInstalledPackageDetail(string $packageName, string $installedPackages, &$packageDetail) {
-		return preg_match('/' . $packageName . '==([\d+\.?]+)/i', $installedPackages, $packageDetail) === 1;
+	private static function getInstalledPackageDetail(string $packageName, array $installedPackages, &$packageDetail) {
+		$packages = "||" . join("||", $installedPackages);
+		return preg_match('/\|\|\K' . $packageName . '==([\d+\.?]+)/i', $packages, $packageDetail) === 1;
 	}
 
 	private static function pythonRequirementsInstalled(string $pythonPath, string $requirementsPath) {
@@ -209,19 +210,20 @@ private static function pythonRequirementsInstalled(string $pythonPath, string $
 			return false;
 		}
 		exec("{$pythonPath} -m pip freeze", $packages_installed);
-		$packages = join("||", $packages_installed);
 		exec("cat {$requirementsPath}", $requirements);
 
 		foreach ($requirements as $requirement_line) {
 			if (self::getRequiredPackageDetail($requirement_line, $package_details)) {
-				list($required_package_name, $required_package_operator, $required_package_version) = $package_details;
-				if (self::getInstalledPackageDetail($required_package_name, $packages, $install)) {
-					if ($required_package_operator == '==' && $required_package_version != $install[1]) {
+				if (self::getInstalledPackageDetail($package_details['name'], $packages_installed, $install)) {
+					if ($package_details['operator'] == '==' && $package_details['version'] != $install[1]) {
+						log::add(__CLASS__, 'debug', "Package {$package_details['name']} version is {$install[1]} but version {$package_details['version']} is required");
 						return false;
-					} elseif (version_compare($required_package_version, $install[1], '>')) {
+					} elseif (version_compare($package_details['version'], $install[1], '>')) {
+						log::add(__CLASS__, 'debug', "Package {$package_details['name']} version is {$install[1]} but version at least {$package_details['version']} is required");
 						return false;
 					}
 				} else {
+					log::add(__CLASS__, 'debug', "Package {$package_details['name']} seems not installed");
 					return false;
 				}
 			}
diff --git a/tests/MipsEqLogicTraitTest.php b/tests/MipsEqLogicTraitTest.php
index ad76d03..443b4fc 100644
--- a/tests/MipsEqLogicTraitTest.php
+++ b/tests/MipsEqLogicTraitTest.php
@@ -57,6 +57,24 @@ public function testgetRequiredPackageDetail_greaterthan() {
         $this->assertEquals('1.0.0', $details['version']);
     }
 
+    public function testgetRequiredPackageDetail_greater_or_equal() {
+        $trait = new class {
+            use MipsEqLogicTrait {
+                getRequiredPackageDetail as public; // make the method public
+            }
+        };
+
+        $result = $trait->getRequiredPackageDetail('requests>=2.31', $details);
+        $this->assertTrue($result);
+        $this->assertCount(7, $details);
+        $this->assertEquals('requests', $details[1]);
+        $this->assertEquals('requests', $details['name']);
+        $this->assertEquals('>=', $details[2]);
+        $this->assertEquals('>=', $details['operator']);
+        $this->assertEquals('2.31', $details[3]);
+        $this->assertEquals('2.31', $details['version']);
+    }
+
     public function testgetRequiredPackageDetail_extra() {
         $trait = new class {
             use MipsEqLogicTrait {
@@ -147,6 +165,24 @@ public function testgetRequiredPackageDetail_equal() {
         $this->assertEquals('1.0.0', $details['version']);
     }
 
+    public function testgetRequiredPackageDetail_package_with_hyphen() {
+        $trait = new class {
+            use MipsEqLogicTrait {
+                getRequiredPackageDetail as public; // make the method public
+            }
+        };
+
+        $result = $trait->getRequiredPackageDetail('python-slugify~=8.0.4', $details);
+        $this->assertTrue($result);
+        $this->assertCount(7, $details);
+        $this->assertEquals('python-slugify', $details[1]);
+        $this->assertEquals('python-slugify', $details['name']);
+        $this->assertEquals('~=', $details[2]);
+        $this->assertEquals('~=', $details['operator']);
+        $this->assertEquals('8.0.4', $details[3]);
+        $this->assertEquals('8.0.4', $details['version']);
+    }
+
     public function testgetRequiredPackageDetail_only_name() {
         $trait = new class {
             use MipsEqLogicTrait {
@@ -196,7 +232,6 @@ public function testgetRequiredPackageDetail_invalidPackage() {
         $this->assertFalse($result);
     }
 
-    // tests on getInstalledPackageDetail
     public function testgetInstalledPackageDetail_present() {
         $trait = new class {
             use MipsEqLogicTrait {
@@ -204,7 +239,7 @@ public function testgetInstalledPackageDetail_present() {
             }
         };
 
-        $result = $trait->getInstalledPackageDetail('jeedomdaemon', 'jeedomdaemon==1.1.0||anotherpackage==1.1.1', $details);
+        $result = $trait->getInstalledPackageDetail('jeedomdaemon', ['jeedomdaemon==1.1.0', 'anotherpackage==1.1.1'], $details);
         $this->assertTrue($result);
         $this->assertEquals('jeedomdaemon==1.1.0', $details[0]);
         $this->assertEquals('1.1.0', $details[1]);
@@ -218,7 +253,7 @@ public function testgetInstalledPackageDetail_present_mix_case() {
             }
         };
 
-        $result = $trait->getInstalledPackageDetail('unidecode', 'Unidecode==1.1.0||anotherpackage==1.1.1', $details);
+        $result = $trait->getInstalledPackageDetail('unidecode', ['Unidecode==1.1.0', 'anotherpackage==1.1.1'], $details);
         $this->assertTrue($result);
         $this->assertEquals('Unidecode==1.1.0', $details[0]);
         $this->assertEquals('1.1.0', $details[1]);
@@ -231,7 +266,29 @@ public function testgetInstalledPackageDetail_absent() {
             }
         };
 
-        $result = $trait->getInstalledPackageDetail('jeedomdaemon', 'anotherpackage==1.1.1', $details);
+        $result = $trait->getInstalledPackageDetail('jeedomdaemon', ['anotherpackage==1.1.1'], $details);
+        $this->assertFalse($result);
+    }
+
+    public function testgetInstalledPackageDetail_absent_hyphen() {
+        $trait = new class {
+            use MipsEqLogicTrait {
+                getInstalledPackageDetail as public; // make the method public
+            }
+        };
+
+        $result = $trait->getInstalledPackageDetail('Unidecode', ['requests-toolbelt==1.0.0', 'text-unidecode==1.3'], $details);
+        $this->assertFalse($result);
+    }
+
+    public function testgetInstalledPackageDetail_absent_hyphen2() {
+        $trait = new class {
+            use MipsEqLogicTrait {
+                getInstalledPackageDetail as public; // make the method public
+            }
+        };
+
+        $result = $trait->getInstalledPackageDetail('requests', ['requests-toolbelt==1.0.0', 'text-unidecode==1.3'], $details);
         $this->assertFalse($result);
     }
 }