Move variable __gmt_version__ to pygmt.clib to avoid cyclic-import errors (#2713)

Author: seisman

pygmt/__init__.py

@@ -21,13 +21,9 @@
 import sys
 from importlib.metadata import version
 
-from pygmt import clib
-
 # Get semantic version through setuptools-scm
 __version__ = f'v{version("pygmt")}'  # e.g. v0.1.2.dev3+g0ab3cd78
 __commit__ = __version__.split("+g")[-1] if "+g" in __version__ else ""  # 0ab3cd78
-with clib.Session() as lib:
-    __gmt_version__ = lib.info["version"]
 
 # Import modules to make the high-level GMT Python API
 from pygmt import datasets

pygmt/clib/__init__.py

@@ -6,3 +6,6 @@
 """
 
 from pygmt.clib.session import Session
+
+with Session() as lib:
+    __gmt_version__ = lib.info["version"]

pygmt/src/ternary.py

@@ -3,8 +3,7 @@
 """
 import pandas as pd
 from packaging.version import Version
-from pygmt import __gmt_version__
-from pygmt.clib import Session
+from pygmt.clib import Session, __gmt_version__
 from pygmt.helpers import build_arg_string, fmt_docstring, kwargs_to_strings, use_alias
 
 

pygmt/src/timestamp.py

@@ -4,8 +4,7 @@
 import warnings
 
 from packaging.version import Version
-from pygmt import __gmt_version__
-from pygmt.clib import Session
+from pygmt.clib import Session, __gmt_version__
 from pygmt.helpers import build_arg_string, is_nonstr_iter
 
 __doctest_skip__ = ["timestamp"]

pygmt/tests/test_accessor.py

@@ -8,7 +8,8 @@
 import pytest
 import xarray as xr
 from packaging.version import Version
-from pygmt import __gmt_version__, which
+from pygmt import which
+from pygmt.clib import __gmt_version__
 from pygmt.datasets import load_earth_relief
 from pygmt.exceptions import GMTInvalidInput
 

pygmt/tests/test_grdfill.py

@@ -7,7 +7,8 @@
 import pytest
 import xarray as xr
 from packaging.version import Version
-from pygmt import __gmt_version__, grdfill, load_dataarray
+from pygmt import grdfill, load_dataarray
+from pygmt.clib import __gmt_version__
 from pygmt.exceptions import GMTInvalidInput
 from pygmt.helpers import GMTTempFile
 from pygmt.helpers.testing import load_static_earth_relief

pygmt/tests/test_meca.py

@@ -5,7 +5,8 @@
 import pandas as pd
 import pytest
 from packaging.version import Version
-from pygmt import Figure, __gmt_version__
+from pygmt import Figure
+from pygmt.clib import __gmt_version__
 from pygmt.exceptions import GMTInvalidInput
 from pygmt.helpers import GMTTempFile