diff --git a/python/intellij.python.community.impl.iml b/python/intellij.python.community.impl.iml
index a0bda1516708..457daa46ea23 100644
--- a/python/intellij.python.community.impl.iml
+++ b/python/intellij.python.community.impl.iml
@@ -1,5 +1,27 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="kotlin-language" name="Kotlin">
+      <configuration version="5" platform="JVM 17" allPlatforms="JVM [17]" useProjectSettings="false">
+        <compilerSettings>
+          <option name="additionalArguments" value="-Xjvm-default=all" />
+        </compilerSettings>
+        <compilerArguments>
+          <stringArguments>
+            <stringArg name="jvmTarget" arg="17" />
+            <stringArg name="apiVersion" arg="2.1" />
+            <stringArg name="languageVersion" arg="2.1" />
+          </stringArguments>
+          <arrayArguments>
+            <arrayArg name="pluginClasspaths">
+              <args>$KOTLIN_BUNDLED$/lib/kotlinx-serialization-compiler-plugin.jar</args>
+            </arrayArg>
+            <arrayArg name="pluginOptions" />
+          </arrayArguments>
+        </compilerArguments>
+      </configuration>
+    </facet>
+  </component>
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
diff --git a/python/python-psi-impl/src/com/jetbrains/python/packaging/PyRequirements.kt b/python/python-psi-impl/src/com/jetbrains/python/packaging/PyRequirements.kt
index 811f476007ef..e8b7e955e0f0 100644
--- a/python/python-psi-impl/src/com/jetbrains/python/packaging/PyRequirements.kt
+++ b/python/python-psi-impl/src/com/jetbrains/python/packaging/PyRequirements.kt
@@ -2,6 +2,8 @@
 package com.jetbrains.python.packaging
 
 import com.intellij.openapi.util.text.StringUtil
+import com.jetbrains.python.errorProcessing.PyResult
+import com.jetbrains.python.errorProcessing.failure
 import com.jetbrains.python.packaging.requirement.PyRequirementRelation
 import com.jetbrains.python.packaging.requirement.PyRequirementVersionSpec
 
@@ -35,6 +37,16 @@ fun pyRequirement(name: String, relation: PyRequirementRelation, version: String
   return PyRequirementImpl(name, listOf(versionSpec), listOf(name + relation.presentableText + version), "")
 }
 
+
+fun String.parseVersionSpec(): PyResult<PyRequirementVersionSpec> {
+  val value = trim()
+  val relation = PyRequirementRelation.entries.lastOrNull { value.startsWith(it.presentableText) }
+                 ?: return failure("Could not parse relation from: $value")
+
+  val version = value.removePrefix(relation.presentableText)
+  return PyResult.success(pyRequirementVersionSpec(relation, version))
+}
+
 /**
  * This method could be used to obtain [PyRequirementVersionSpec] instances with specified relation and version.
  * If given version could not be normalized, then specified relation will be replaced with [PyRequirementRelation.STR_EQ].
@@ -64,9 +76,11 @@ fun pyRequirementVersionSpec(relation: PyRequirementRelation, version: PyPackage
 /**
  * Instances of this class MUST be obtained from [pyRequirementVersionSpec].
  */
-private data class PyRequirementVersionSpecImpl(private val relation: PyRequirementRelation,
-                                                private val parsedVersion: PyPackageVersion?,
-                                                private val version: String) : PyRequirementVersionSpec {
+private data class PyRequirementVersionSpecImpl(
+  private val relation: PyRequirementRelation,
+  private val parsedVersion: PyPackageVersion?,
+  private val version: String,
+) : PyRequirementVersionSpec {
 
   override fun getRelation() = relation
   override fun getVersion() = version
diff --git a/python/src/com/jetbrains/python/packaging/conda/CondaParseUtils.kt b/python/src/com/jetbrains/python/packaging/conda/CondaParseUtils.kt
index 82eeb303cfb3..1ce2a0030106 100644
--- a/python/src/com/jetbrains/python/packaging/conda/CondaParseUtils.kt
+++ b/python/src/com/jetbrains/python/packaging/conda/CondaParseUtils.kt
@@ -21,14 +21,14 @@ internal object CondaParseUtils {
   }
 
   @Serializable
-  private data class CondaOutput(val actions: CondaOutputActions)
+  private data class CondaOutput(val actions: CondaOutputActions = CondaOutputActions())
 
   @Serializable
   private data class CondaOutputActions(
     @SerialName("LINK")
-    val link: List<CondaPackageInfo>,
+    val link: List<CondaPackageInfo> = emptyList(),
     @SerialName("UNLINK")
-    val unlink: List<CondaPackageInfo>,
+    val unlink: List<CondaPackageInfo> = emptyList(),
   )
 
   @Serializable
diff --git a/python/src/com/jetbrains/python/requirements/UnsatisfiedRequirementInspection.kt b/python/src/com/jetbrains/python/requirements/UnsatisfiedRequirementInspection.kt
index 7714ad8e2e3f..291ea59cfe21 100644
--- a/python/src/com/jetbrains/python/requirements/UnsatisfiedRequirementInspection.kt
+++ b/python/src/com/jetbrains/python/requirements/UnsatisfiedRequirementInspection.kt
@@ -29,7 +29,6 @@ import com.jetbrains.python.packaging.common.runPackagingOperationOrShowErrorDia
 import com.jetbrains.python.packaging.management.PythonPackageManager
 import com.jetbrains.python.packaging.management.runPackagingTool
 import com.jetbrains.python.packaging.management.toInstallRequest
-import com.jetbrains.python.packaging.requirement.PyRequirementRelation
 import com.jetbrains.python.packaging.toolwindow.PyPackagingToolWindowService
 import com.jetbrains.python.requirements.psi.NameReq
 import com.jetbrains.python.requirements.psi.Requirement
@@ -134,7 +133,7 @@ private class InstallRequirementQuickFix(requirement: Requirement) : LocalQuickF
       val file = descriptor.psiElement.containingFile ?: return
       val sdk = getPythonSdk(file) ?: return
       val versionSpecStr = if (requirement is NameReq) requirement.versionspec?.text else null
-      val versionSpec = versionSpecStr?.let { pyRequirementVersionSpec(PyRequirementRelation.EQ, it) } // TODO CHECK
+      val versionSpec = versionSpecStr?.parseVersionSpec()?.getOr { return }
       val name = requirement.displayName
 
       project.service<PyPackagingToolWindowService>().serviceScope.launch(Dispatchers.IO) {
@@ -162,7 +161,7 @@ private class InstallRequirementQuickFix(requirement: Requirement) : LocalQuickF
         }
         val manager = PythonPackageManager.forSdk(project, sdk)
         val specs = infos.mapNotNull { (name, versionSpecStr) ->
-          val versionSpec = versionSpecStr?.let { pyRequirementVersionSpec(PyRequirementRelation.EQ, it) } // TODO CHECK
+          val versionSpec = versionSpecStr?.parseVersionSpec()?.getOr { return@mapNotNull null }
           manager.createPackageSpecificationWithSpec(name, versionSpec)
         }