Black lint to remove unneeded commas (#572)

Author: weiji14

pygmt/base_plotting.py

@@ -1013,7 +1013,7 @@ def text(
 
     @fmt_docstring
     @use_alias(R="region", J="projection", B="frame", C="offset")
-    @kwargs_to_strings(R="sequence",)
+    @kwargs_to_strings(R="sequence")
     def meca(
         self,
         spec,

pygmt/clib/session.py

@@ -1065,7 +1065,7 @@ def open_virtual_file(self, family, geometry, direction, data):
         family_int = self._parse_constant(family, valid=FAMILIES, valid_modifiers=VIAS)
         geometry_int = self._parse_constant(geometry, valid=GEOMETRIES)
         direction_int = self._parse_constant(
-            direction, valid=["GMT_IN", "GMT_OUT"], valid_modifiers=METHODS,
+            direction, valid=["GMT_IN", "GMT_OUT"], valid_modifiers=METHODS
         )
 
         buff = ctp.create_string_buffer(self["GMT_VF_LEN"])

pygmt/tests/test_grdtrack.py

@@ -25,7 +25,7 @@ def fixture_dataarray():
     )
 
 
-@pytest.mark.xfail(reason="The reason why it fails is unclear now",)
+@pytest.mark.xfail(reason="The reason why it fails is unclear now")
 def test_grdtrack_input_dataframe_and_dataarray(dataarray):
     """
     Run grdtrack by passing in a pandas.DataFrame and xarray.DataArray as
@@ -41,7 +41,7 @@ def test_grdtrack_input_dataframe_and_dataarray(dataarray):
     return output
 
 
-@pytest.mark.xfail(reason="The reason why it fails is unclear now",)
+@pytest.mark.xfail(reason="The reason why it fails is unclear now")
 def test_grdtrack_input_csvfile_and_dataarray(dataarray):
     """
     Run grdtrack by passing in a csvfile and xarray.DataArray as inputs

pygmt/tests/test_session_management.py

@@ -8,7 +8,7 @@
 
 
 def test_begin_end():
-    """"
+    """
     Run a command inside a begin-end modern mode block.
     First, end the global session. When finished, restart it.
     """