moved test imports

tests/test_get_field_info.py

@@ -1,5 +1,7 @@
 import wranglertools.get_field_info as gfi
 import pytest
+from operator import itemgetter
+import xlrd3
 
 # test data is in conftest.py
 
@@ -342,8 +344,6 @@ def test_get_uploadable_fields_mock(connection_mock, mocker, returned_vendor_sch
 
 def xls_to_list(xls_file, sheet):
     """To compare xls files to reference ones, return a sorted list of content."""
-    from operator import itemgetter
-    import xlrd3
     return_list = []
     wb = xlrd3.open_workbook(xls_file)
     read_sheet = wb.sheet_by_name(sheet)
@@ -361,7 +361,6 @@ def xls_to_list(xls_file, sheet):
 
 def xls_field_order(xls_file, sheet):
     # returns list of fields (in order) in an excel sheet
-    import xlrd3
     wb = xlrd3.open_workbook(xls_file).sheet_by_name(sheet)
     return [str(wb.cell_value(0, col)) for col in range(1, wb.ncols)]