Update astrowidgets/bqplot.py

Co-authored-by: P. L. Lim <[email protected]>

Author: mwcraig

astrowidgets/bqplot.py

@@ -487,7 +487,7 @@ def _update_viewer_zoom_scroll(self, change):
     # Methods for loading data
     def load_fits(self, file_name_or_HDU):
         if isinstance(file_name_or_HDU, str):
-            ccd = CCDData.read(file)
+            ccd = CCDData.read(file_name_or_HDU)
         elif isinstance(file_name_or_HDU,
                         (fits.ImageHDU, fits.CompImageHDU, fits.PrimaryHDU)):
             try: