Don't require pairs but fall back to pair_whitelist instead

freqtrade/arguments.py

@@ -444,7 +444,6 @@ class Arguments(object):
             '-p', '--pairs',
             help='Show profits for only this pairs. Pairs are comma-separated.',
             dest='pairs',
-            required=True
         )
 
     def download_data_options(self) -> None:

freqtrade/tests/test_arguments.py

@@ -203,14 +203,6 @@ def test_plot_dataframe_options() -> None:
     assert pargs.plot_limit == 30
     assert pargs.pairs == "UNITTEST/BTC"
 
-    # Pop pairs argument
-    args = args[:-2]
-    arguments = Arguments(args, '')
-    arguments.common_scripts_options()
-    arguments.plot_dataframe_options()
-    with pytest.raises(SystemExit, match=r'2'):
-        arguments.parse_args(True)
-
 
 def test_check_int_positive() -> None: