Merge pull request #16605 from ccordoba12/issue-16598

PR: Fix error when opening files that the Variable Explorer can handle (Main window)

spyder/app/mainwindow.py

@@ -47,7 +47,7 @@
 from qtpy.compat import from_qvariant
 from qtpy.QtCore import (QCoreApplication, Qt, QTimer, Signal, Slot,
                          qInstallMessageHandler)
-from qtpy.QtGui import QColor, QKeySequence, QIcon
+from qtpy.QtGui import QColor, QKeySequence
 from qtpy.QtWidgets import (QApplication, QMainWindow, QMenu, QMessageBox,
                             QShortcut, QStyleFactory)
 
@@ -1593,7 +1593,7 @@ def open_file(self, fname, external=False):
         if encoding.is_text_file(fname):
             self.editor.load(fname)
         elif self.variableexplorer is not None and ext in IMPORT_EXT:
-            self.variableexplorer.import_data(fname)
+            self.variableexplorer.get_widget().import_data(fname)
         elif not external:
             fname = file_uri(fname)
             start_file(fname)