bug fix

Author: DonJayamanne

src/client/providers/jediHelpers.ts

@@ -40,7 +40,7 @@ export function extractSignatureAndDocumentation(definition: proxy.IAutoComplete
 
 export function extractHoverInfo(definition: proxy.IAutoCompleteItem): vscode.Hover {
  const parts = extractSignatureAndDocumentation(definition);
- const hoverInfo: vscode.MarkedString[] = [{ language: 'python', value: parts[0] }];
+ const hoverInfo: vscode.MarkedString[] = parts[0].length === 0 ? [] : [{ language: 'python', value: parts[0] }];
  if (parts[1].length > 0) {
  hoverInfo.push(parts[1]);
  }