Key error when uploading dataframe with two columns with same label

[TrevorMcGuireNG]

If df[col] is not a series (because df has more than one column named col), then pd.isnull(df[col][idx]) throws a KeyError. This occurs on line 144 of df2gspread.py.

 for j, idx in enumerate(df.index): 
      for i, col in enumerate(df.columns.values):
        if not pd.isnull(df[col][idx]):
            cell_list[i + j * len(df.columns.values)].value = df[col][idx]`