I see this error in pycharm logs. Indeed black-pycharm.zip does not look like a correct zip. it cannot be opened with unzip
2019-11-29 11:10:35,151 [ 4602] INFO - m.intellij.util.lang.ClassPath - url: file:/home/dani/.PyCharmCE2019.3/config/plugins/black-pycharm/lib/black-pycharm.zip
java.util.zip.ZipException: zip END header not found
at java.base/java.util.zip.ZipFile$Source.zerror(ZipFile.java:1535)
at java.base/java.util.zip.ZipFile$Source.findEND(ZipFile.java:1436)
at java.base/java.util.zip.ZipFile$Source.initCEN(ZipFile.java:1443)
at java.base/java.util.zip.ZipFile$Source.<init>(ZipFile.java:1274)
at java.base/java.util.zip.ZipFile$Source.get(ZipFile.java:1237)
at java.base/java.util.zip.ZipFile$CleanableResource.<init>(ZipFile.java:727)
at java.base/java.util.zip.ZipFile$CleanableResource.get(ZipFile.java:844)
at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:247)
at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:177)
at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:148)
at com.intellij.util.lang.JarLoader.createZipFile(JarLoader.java:332)
at com.intellij.util.lang.JarLoader.getZipFile(JarLoader.java:322)
at com.intellij.util.lang.JarLoader.<init>(JarLoader.java:55)
at com.intellij.util.lang.ClassPath.createLoader(ClassPath.java:224)
at com.intellij.util.lang.ClassPath.initLoaders(ClassPath.java:211)
at com.intellij.util.lang.ClassPath.getLoaderSlowPath(ClassPath.java:165)
at com.intellij.util.lang.ClassPath.getLoader(ClassPath.java:145)
at com.intellij.util.lang.ClassPath.getResource(ClassPath.java:113)
at com.intellij.util.lang.UrlClassLoader._findClass(UrlClassLoader.java:314)
at com.intellij.ide.plugins.cl.PluginClassLoader.loadClassInsideSelf(PluginClassLoader.java:220)
at com.intellij.ide.plugins.cl.PluginClassLoader.tryLoadingClass(PluginClassLoader.java:167)
at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:75)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:877)
at com.intellij.util.lang.UrlClassLoader._defineClass(UrlClassLoader.java:359)
at com.intellij.util.lang.UrlClassLoader.defineClass(UrlClassLoader.java:355)
at com.intellij.util.lang.UrlClassLoader._findClass(UrlClassLoader.java:319)
at com.intellij.ide.plugins.cl.PluginClassLoader.loadClassInsideSelf(PluginClassLoader.java:220)
at com.intellij.ide.plugins.cl.PluginClassLoader.tryLoadingClass(PluginClassLoader.java:167)
at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:75)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:398)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.instantiate(ActionManagerImpl.java:164)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.convertStub(ActionManagerImpl.java:152)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getActionImpl(ActionManagerImpl.java:508)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getAction(ActionManagerImpl.java:496)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.preloadActions(ActionManagerImpl.java:1365)
at com.intellij.openapi.actionSystem.impl.ActionPreloader.preload(ActionPreloader.java:13)
at com.intellij.openapi.application.Preloader.lambda$null$1(Preloader.java:80)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:163)
at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:585)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:531)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:59)
at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:150)
at com.intellij.openapi.application.Preloader.lambda$null$2(Preloader.java:76)
at com.intellij.util.concurrency.BoundedTaskExecutor.doRun(BoundedTaskExecutor.java:222)
at com.intellij.util.concurrency.BoundedTaskExecutor.access$200(BoundedTaskExecutor.java:30)
at com.intellij.util.concurrency.BoundedTaskExecutor$1.execute(BoundedTaskExecutor.java:201)
at com.intellij.util.ConcurrencyUtil.runUnderThreadName(ConcurrencyUtil.java:221)
at com.intellij.util.concurrency.BoundedTaskExecutor$1.run(BoundedTaskExecutor.java:190)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
I see this error in pycharm logs. Indeed black-pycharm.zip does not look like a correct zip. it cannot be opened with unzip