Error '...plugins/python/lib/modules should be lib directory'

IntelliJ Platform
1

Hello,

A simple test case that runs myfixture.doHighlighting() fails as shown below.

What needs to be done to resolve this?

# Supported build number ranges and IntelliJ Platform versions -> https://plugins.jetbrains.com/docs/intellij/build-number-ranges.html
pluginSinceBuild=251

# IntelliJ Platform Properties -> https://plugins.jetbrains.com/docs/intellij/tools-gradle-intellij-plugin.html#configuration-intellij-extension
platformType=PY
platformVersion=2025.1.1

# Plugin Dependencies -> https://plugins.jetbrains.com/docs/intellij/plugin-dependencies.html
# Example: platformPlugins = com.jetbrains.php:203.4449.22, org.intellij.scala:2023.3.27@EAP
platformPlugins =
# Example: platformBundledPlugins = Pythonid com.intellij.java
platformBundledPlugins=Pythonid
# Example: platformBundledModules = intellij.spellchecker
platformBundledModules =

package com.github.chbndrhnns.intellijplatformplugincopy

import com.intellij.testFramework.LightProjectDescriptor
import com.intellij.testFramework.fixtures.BasePlatformTestCase
import jetbrains.python.fixtures.PyLightProjectDescriptor
import com.jetbrains.python.psi.LanguageLevel


class IntentionReproTest : BasePlatformTestCase() {

    override fun getProjectDescriptor(): LightProjectDescriptor =
        PyLightProjectDescriptor(LanguageLevel.getLatest())

    fun testIntentionAvailableAfterHighlighting() {
        myFixture.configureByText(
            "a.py",
            """
            from pathlib import Path
            a: str = Path(<caret>"val")
            """.trimIndent()
        )

        myFixture.doHighlighting()
    }
}

Fails with:

/Users/jo/.gradle/caches/9.0.0/transforms/0a02ab88e0cb4993fe516a7c26a57f10/transformed/pycharm-professional-2025.1.1-aarch64/plugins/python/lib/modules should be lib directory
java.lang.IllegalStateException: /Users/jo/.gradle/caches/9.0.0/transforms/0a02ab88e0cb4993fe516a7c26a57f10/transformed/pycharm-professional-2025.1.1-aarch64/plugins/python/lib/modules should be lib directory
	at com.intellij.ide.plugins.PluginManagerCoreKt.getPluginDistDirByClass(PluginManagerCore.kt:1119)
	at com.jetbrains.python.PythonHelpersLocator.findRootByJarPath(PythonHelpersLocator.kt:142)
	at com.jetbrains.python.p.m(p.java:27)
	at com.jetbrains.python.PythonProHelpersLocator.getHelpersRoot(PythonProHelpersLocator.kt:21)
	at com.jetbrains.python.PythonProHelpersLocator.m(PythonProHelpersLocator.kt:36)
	at com.jetbrains.python.PythonProHelpersLocator.getRoot(PythonProHelpersLocator.kt:13)
	at com.jetbrains.python.PythonHelpersLocator$Companion.getHelpersRoots(PythonHelpersLocator.kt:52)
	at com.jetbrains.python.PythonHelpersLocator$Companion.findPathInHelpers(PythonHelpersLocator.kt:72)
3

Hello,
does this occur with the most recent IntelliJ Platform Gradle Plugin 2.10.0 that has been released today?

4

I updated intelliJPlatform to "2.10.0" and ran the test again. The test still fails and the stacktrace looks very similar.

5

Some more investigation.

It’s related with Pythonid vs PythonCore plugins. It fails for Pythonid and passes for `PythonCore.