Add an internal utility function _get_gmt_version

Author: seisman

pygmt/__init__.py

@@ -76,6 +76,19 @@
 _atexit.register(_end)
 
 
+def _get_gmt_version():
+    """
+    Return the GMT version string.
+
+    Returns
+    -------
+    str
+        The GMT version string.
+    """
+    with Session() as lib:
+        return lib.info["version"]
+
+
 def print_clib_info():
     """
     Print information about the GMT shared library that we can find.

pygmt/tests/test_accessor.py

@@ -7,12 +7,9 @@
 import pytest
 import xarray as xr
 from packaging.version import Version
-from pygmt import clib, which
+from pygmt import _get_gmt_version, clib, which
 from pygmt.exceptions import GMTInvalidInput
 
-with clib.Session() as _lib:
-    gmt_version = Version(_lib.info["version"])
-
 
 def test_accessor_gridline_cartesian():
     """
@@ -76,7 +73,7 @@ def test_accessor_set_non_boolean():
 
 
 @pytest.mark.skipif(
-    gmt_version < Version("6.4.0"),
+    Version(_get_gmt_version()) < Version("6.4.0"),
     reason="Upstream bug fixed in https://github.com/GenericMappingTools/gmt/pull/6615",
 )
 @pytest.mark.xfail(

pygmt/tests/test_grdfill.py

@@ -7,14 +7,11 @@
 import pytest
 import xarray as xr
 from packaging.version import Version
-from pygmt import clib, grdfill, load_dataarray
+from pygmt import _get_gmt_version, clib, grdfill, load_dataarray
 from pygmt.exceptions import GMTInvalidInput
 from pygmt.helpers import GMTTempFile
 from pygmt.helpers.testing import load_static_earth_relief
 
-with clib.Session() as _lib:
-    gmt_version = Version(_lib.info["version"])
-
 
 @pytest.fixture(scope="module", name="grid")
 def fixture_grid():
@@ -87,7 +84,7 @@ def test_grdfill_dataarray_out(grid, expected_grid):
 
 
 @pytest.mark.skipif(
-    gmt_version < Version("6.4.0"),
+    Version(_get_gmt_version()) < Version("6.4.0"),
     reason="Upstream bug/crash fixed in https://github.com/GenericMappingTools/gmt/pull/6418.",
 )
 def test_grdfill_asymmetric_pad(grid, expected_grid):