diff --git a/.pylintrc b/.pylintrc
index 66b76a52b7c..3cb8c891dfa 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -538,8 +538,7 @@ min-public-methods=2
 
 # List of modules that can be imported at any level, not just the top level
 # one.
-allow-any-import-level=clib,
-                       clib.Session,
+allow-any-import-level=pygmt.clib.Session,
                        sys,
                        platform,
                        importlib,
diff --git a/pygmt/__init__.py b/pygmt/__init__.py
index 0fb12c6652a..733e4ce1205 100644
--- a/pygmt/__init__.py
+++ b/pygmt/__init__.py
@@ -12,16 +12,16 @@
 from pkg_resources import get_distribution
 
 # Import modules to make the high-level GMT Python API
-from .session_management import begin as _begin, end as _end
-from .figure import Figure
-from .filtering import blockmedian
-from .gridding import surface
-from .sampling import grdtrack
-from .mathops import makecpt
-from .modules import GMTDataArrayAccessor, config, info, grdinfo, which
-from .gridops import grdcut, grdfilter
-from .x2sys import x2sys_init, x2sys_cross
-from . import datasets
+from pygmt.session_management import begin as _begin, end as _end
+from pygmt.figure import Figure
+from pygmt.filtering import blockmedian
+from pygmt.gridding import surface
+from pygmt.sampling import grdtrack
+from pygmt.mathops import makecpt
+from pygmt.modules import GMTDataArrayAccessor, config, info, grdinfo, which
+from pygmt.gridops import grdcut, grdfilter
+from pygmt.x2sys import x2sys_init, x2sys_cross
+from pygmt import datasets
 
 # Get semantic version through setuptools-scm
 __version__ = f'v{get_distribution("pygmt").version}'  # e.g. v0.1.2.dev3+g0ab3cd78
@@ -40,7 +40,7 @@ def print_clib_info():
     Includes the GMT version, default values for parameters, the path to the
     ``libgmt`` shared library, and GMT directories.
     """
-    from .clib import Session
+    from pygmt.clib import Session
 
     lines = ["GMT library information:"]
     with Session() as ses:
diff --git a/pygmt/base_plotting.py b/pygmt/base_plotting.py
index f0ac7142e9a..be722387419 100644
--- a/pygmt/base_plotting.py
+++ b/pygmt/base_plotting.py
@@ -6,9 +6,9 @@
 import numpy as np
 import pandas as pd
 
-from .clib import Session
-from .exceptions import GMTError, GMTInvalidInput
-from .helpers import (
+from pygmt.clib import Session
+from pygmt.exceptions import GMTError, GMTInvalidInput
+from pygmt.helpers import (
     build_arg_string,
     dummy_context,
     data_kind,
diff --git a/pygmt/clib/__init__.py b/pygmt/clib/__init__.py
index a6282f84122..6bf9577b00a 100644
--- a/pygmt/clib/__init__.py
+++ b/pygmt/clib/__init__.py
@@ -5,4 +5,4 @@
 # The pygmt.clib.Session class wraps the GMT C shared library (libgmt) with a
 # pythonic interface. Access to the C library is done through ctypes.
 
-from .session import Session
+from pygmt.clib.session import Session
diff --git a/pygmt/clib/conversion.py b/pygmt/clib/conversion.py
index e851211050d..41c90b91b2a 100644
--- a/pygmt/clib/conversion.py
+++ b/pygmt/clib/conversion.py
@@ -4,7 +4,7 @@
 import numpy as np
 import pandas as pd
 
-from ..exceptions import GMTInvalidInput
+from pygmt.exceptions import GMTInvalidInput
 
 
 def dataarray_to_matrix(grid):
diff --git a/pygmt/clib/loading.py b/pygmt/clib/loading.py
index ee9332e86be..f68cda02492 100644
--- a/pygmt/clib/loading.py
+++ b/pygmt/clib/loading.py
@@ -9,7 +9,7 @@
 import ctypes
 from ctypes.util import find_library
 
-from ..exceptions import GMTOSError, GMTCLibError, GMTCLibNotFoundError
+from pygmt.exceptions import GMTOSError, GMTCLibError, GMTCLibNotFoundError
 
 
 def load_libgmt():
diff --git a/pygmt/clib/session.py b/pygmt/clib/session.py
index 7d53566cb51..94d1884c687 100644
--- a/pygmt/clib/session.py
+++ b/pygmt/clib/session.py
@@ -11,14 +11,14 @@
 import numpy as np
 import pandas as pd
 
-from ..exceptions import (
+from pygmt.exceptions import (
     GMTCLibError,
     GMTCLibNoSessionError,
     GMTInvalidInput,
     GMTVersionError,
 )
-from .loading import load_libgmt
-from .conversion import (
+from pygmt.clib.loading import load_libgmt
+from pygmt.clib.conversion import (
     kwargs_to_ctypes_array,
     vectors_to_arrays,
     dataarray_to_matrix,
diff --git a/pygmt/datasets/__init__.py b/pygmt/datasets/__init__.py
index 4454903ee11..3d61623bddd 100644
--- a/pygmt/datasets/__init__.py
+++ b/pygmt/datasets/__init__.py
@@ -2,10 +2,10 @@
 #
 # Load sample data included with GMT (downloaded from the GMT cache server).
 
-from .tutorial import (
+from pygmt.datasets.tutorial import (
     load_japan_quakes,
     load_ocean_ridge_points,
     load_sample_bathymetry,
     load_usgs_quakes,
 )
-from .earth_relief import load_earth_relief
+from pygmt.datasets.earth_relief import load_earth_relief
diff --git a/pygmt/datasets/earth_relief.py b/pygmt/datasets/earth_relief.py
index 80c2b1b6217..5884192f49e 100644
--- a/pygmt/datasets/earth_relief.py
+++ b/pygmt/datasets/earth_relief.py
@@ -4,9 +4,9 @@
 """
 import xarray as xr
 
-from .. import grdcut, which
-from ..exceptions import GMTInvalidInput
-from ..helpers import kwargs_to_strings
+from pygmt import grdcut, which
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import kwargs_to_strings
 
 
 @kwargs_to_strings(region="sequence")
diff --git a/pygmt/datasets/tutorial.py b/pygmt/datasets/tutorial.py
index b56e0ce0e1e..ac6a166efa3 100644
--- a/pygmt/datasets/tutorial.py
+++ b/pygmt/datasets/tutorial.py
@@ -3,7 +3,7 @@
 """
 import pandas as pd
 
-from .. import which
+from pygmt import which
 
 
 def load_japan_quakes():
diff --git a/pygmt/figure.py b/pygmt/figure.py
index 8d4c98a8cd0..f265fc371fd 100644
--- a/pygmt/figure.py
+++ b/pygmt/figure.py
@@ -10,10 +10,10 @@
 except ImportError:
     Image = None
 
-from .clib import Session
-from .base_plotting import BasePlotting
-from .exceptions import GMTError, GMTInvalidInput
-from .helpers import (
+from pygmt.clib import Session
+from pygmt.base_plotting import BasePlotting
+from pygmt.exceptions import GMTError, GMTInvalidInput
+from pygmt.helpers import (
     build_arg_string,
     fmt_docstring,
     use_alias,
diff --git a/pygmt/filtering.py b/pygmt/filtering.py
index adae7524576..0df30368246 100644
--- a/pygmt/filtering.py
+++ b/pygmt/filtering.py
@@ -3,9 +3,9 @@
 """
 import pandas as pd
 
-from .clib import Session
-from .exceptions import GMTInvalidInput
-from .helpers import (
+from pygmt.clib import Session
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import (
     build_arg_string,
     data_kind,
     dummy_context,
diff --git a/pygmt/gridding.py b/pygmt/gridding.py
index 2801cd4a406..5d6ae7524c1 100644
--- a/pygmt/gridding.py
+++ b/pygmt/gridding.py
@@ -3,8 +3,8 @@
 """
 import xarray as xr
 
-from .clib import Session
-from .helpers import (
+from pygmt.clib import Session
+from pygmt.helpers import (
     build_arg_string,
     data_kind,
     dummy_context,
@@ -13,7 +13,7 @@
     kwargs_to_strings,
     use_alias,
 )
-from .exceptions import GMTInvalidInput
+from pygmt.exceptions import GMTInvalidInput
 
 
 @fmt_docstring
diff --git a/pygmt/gridops.py b/pygmt/gridops.py
index 845fbee65ff..c18ef39ee41 100644
--- a/pygmt/gridops.py
+++ b/pygmt/gridops.py
@@ -5,8 +5,8 @@
 import xarray as xr
 
 
-from .clib import Session
-from .helpers import (
+from pygmt.clib import Session
+from pygmt.helpers import (
     build_arg_string,
     fmt_docstring,
     kwargs_to_strings,
@@ -15,7 +15,7 @@
     data_kind,
     dummy_context,
 )
-from .exceptions import GMTInvalidInput
+from pygmt.exceptions import GMTInvalidInput
 
 
 @fmt_docstring
diff --git a/pygmt/helpers/__init__.py b/pygmt/helpers/__init__.py
index b8a6958816d..de9aa147e65 100644
--- a/pygmt/helpers/__init__.py
+++ b/pygmt/helpers/__init__.py
@@ -1,9 +1,9 @@
 """
 Functions, classes, decorators, and context managers to help wrap GMT modules.
 """
-from .decorators import fmt_docstring, use_alias, kwargs_to_strings
-from .tempfile import GMTTempFile, unique_name
-from .utils import (
+from pygmt.helpers.decorators import fmt_docstring, use_alias, kwargs_to_strings
+from pygmt.helpers.tempfile import GMTTempFile, unique_name
+from pygmt.helpers.utils import (
     data_kind,
     dummy_context,
     build_arg_string,
diff --git a/pygmt/helpers/decorators.py b/pygmt/helpers/decorators.py
index 28e8fafd896..94e08646f7d 100644
--- a/pygmt/helpers/decorators.py
+++ b/pygmt/helpers/decorators.py
@@ -10,8 +10,8 @@
 
 import numpy as np
 
-from .utils import is_nonstr_iter
-from ..exceptions import GMTInvalidInput
+from pygmt.helpers.utils import is_nonstr_iter
+from pygmt.exceptions import GMTInvalidInput
 
 
 COMMON_OPTIONS = {
diff --git a/pygmt/helpers/testing.py b/pygmt/helpers/testing.py
index 4a324a605d2..364faa532b5 100644
--- a/pygmt/helpers/testing.py
+++ b/pygmt/helpers/testing.py
@@ -6,7 +6,7 @@
 import string
 
 from matplotlib.testing.compare import compare_images
-from ..exceptions import GMTImageComparisonFailure
+from pygmt.exceptions import GMTImageComparisonFailure
 
 
 def check_figures_equal(*, extensions=("png",), tol=0.0, result_dir="result_images"):
diff --git a/pygmt/helpers/utils.py b/pygmt/helpers/utils.py
index 7472e9f410f..a6b7831bf0f 100644
--- a/pygmt/helpers/utils.py
+++ b/pygmt/helpers/utils.py
@@ -10,7 +10,7 @@
 
 import xarray as xr
 
-from ..exceptions import GMTInvalidInput
+from pygmt.exceptions import GMTInvalidInput
 
 
 def data_kind(data, x=None, y=None, z=None):
diff --git a/pygmt/mathops.py b/pygmt/mathops.py
index e74deb82c3a..4730c855d1d 100644
--- a/pygmt/mathops.py
+++ b/pygmt/mathops.py
@@ -1,9 +1,9 @@
 """
 GMT modules for Mathematical operations on tables or grids
 """
-from .clib import Session
-from .exceptions import GMTInvalidInput
-from .helpers import build_arg_string, fmt_docstring, kwargs_to_strings, use_alias
+from pygmt.clib import Session
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import build_arg_string, fmt_docstring, kwargs_to_strings, use_alias
 
 
 @fmt_docstring
diff --git a/pygmt/modules.py b/pygmt/modules.py
index c733bb58790..5c71a266ef6 100644
--- a/pygmt/modules.py
+++ b/pygmt/modules.py
@@ -4,8 +4,8 @@
 import numpy as np
 import xarray as xr
 
-from .clib import Session
-from .helpers import (
+from pygmt.clib import Session
+from pygmt.helpers import (
     build_arg_string,
     fmt_docstring,
     GMTTempFile,
@@ -13,7 +13,7 @@
     data_kind,
     dummy_context,
 )
-from .exceptions import GMTInvalidInput
+from pygmt.exceptions import GMTInvalidInput
 
 
 @fmt_docstring
diff --git a/pygmt/sampling.py b/pygmt/sampling.py
index 1ae93db24f3..85a18a808b9 100644
--- a/pygmt/sampling.py
+++ b/pygmt/sampling.py
@@ -3,8 +3,8 @@
 """
 import pandas as pd
 
-from .clib import Session
-from .helpers import (
+from pygmt.clib import Session
+from pygmt.helpers import (
     build_arg_string,
     fmt_docstring,
     GMTTempFile,
@@ -12,7 +12,7 @@
     dummy_context,
     use_alias,
 )
-from .exceptions import GMTInvalidInput
+from pygmt.exceptions import GMTInvalidInput
 
 
 @fmt_docstring
diff --git a/pygmt/session_management.py b/pygmt/session_management.py
index e814daf4fb8..55dda754d12 100644
--- a/pygmt/session_management.py
+++ b/pygmt/session_management.py
@@ -1,7 +1,7 @@
 """
 Modern mode session management modules.
 """
-from .clib import Session
+from pygmt.clib import Session
 
 
 def begin():
diff --git a/pygmt/sphinx_gallery.py b/pygmt/sphinx_gallery.py
index 3de8300a0bd..1f9526ac4c8 100644
--- a/pygmt/sphinx_gallery.py
+++ b/pygmt/sphinx_gallery.py
@@ -6,7 +6,7 @@
 except ImportError:
     figure_rst = None
 
-from .figure import SHOWED_FIGURES
+from pygmt.figure import SHOWED_FIGURES
 
 
 class PyGMTScraper:  # pylint: disable=too-few-public-methods
diff --git a/pygmt/tests/test_accessor.py b/pygmt/tests/test_accessor.py
index 0eb88b7fecd..53ebdd2c145 100644
--- a/pygmt/tests/test_accessor.py
+++ b/pygmt/tests/test_accessor.py
@@ -4,8 +4,8 @@
 import pytest
 import xarray as xr
 
-from .. import which
-from ..exceptions import GMTInvalidInput
+from pygmt import which
+from pygmt.exceptions import GMTInvalidInput
 
 
 def test_accessor_gridline_cartesian():
diff --git a/pygmt/tests/test_basemap.py b/pygmt/tests/test_basemap.py
index 39765c32d50..ad4daafb73a 100644
--- a/pygmt/tests/test_basemap.py
+++ b/pygmt/tests/test_basemap.py
@@ -3,9 +3,9 @@
 """
 import pytest
 
-from .. import Figure
-from ..helpers.testing import check_figures_equal
-from ..exceptions import GMTInvalidInput
+from pygmt import Figure
+from pygmt.helpers.testing import check_figures_equal
+from pygmt.exceptions import GMTInvalidInput
 
 
 def test_basemap_required_args():
diff --git a/pygmt/tests/test_blockmedian.py b/pygmt/tests/test_blockmedian.py
index f63fd90a5d8..dfa8c9c9c9a 100644
--- a/pygmt/tests/test_blockmedian.py
+++ b/pygmt/tests/test_blockmedian.py
@@ -7,10 +7,10 @@
 import pandas as pd
 import pytest
 
-from .. import blockmedian
-from ..datasets import load_sample_bathymetry
-from ..exceptions import GMTInvalidInput
-from ..helpers import data_kind, GMTTempFile
+from pygmt import blockmedian
+from pygmt.datasets import load_sample_bathymetry
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import data_kind, GMTTempFile
 
 
 def test_blockmedian_input_dataframe():
diff --git a/pygmt/tests/test_clib.py b/pygmt/tests/test_clib.py
index 1d15be613fe..d6789e6c790 100644
--- a/pygmt/tests/test_clib.py
+++ b/pygmt/tests/test_clib.py
@@ -12,17 +12,17 @@
 from packaging.version import Version
 import pytest
 
-from .. import clib
-from ..clib.session import FAMILIES, VIAS
-from ..clib.conversion import dataarray_to_matrix
-from ..exceptions import (
+from pygmt import clib
+from pygmt.clib.session import FAMILIES, VIAS
+from pygmt.clib.conversion import dataarray_to_matrix
+from pygmt.exceptions import (
     GMTCLibError,
     GMTCLibNoSessionError,
     GMTInvalidInput,
     GMTVersionError,
 )
-from ..helpers import GMTTempFile
-from .. import Figure
+from pygmt.helpers import GMTTempFile
+from pygmt import Figure
 
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
diff --git a/pygmt/tests/test_clib_loading.py b/pygmt/tests/test_clib_loading.py
index 9c11cb698c1..c38db249784 100644
--- a/pygmt/tests/test_clib_loading.py
+++ b/pygmt/tests/test_clib_loading.py
@@ -4,8 +4,8 @@
 import os
 import pytest
 
-from ..clib.loading import clib_names, load_libgmt, check_libgmt
-from ..exceptions import GMTCLibError, GMTOSError, GMTCLibNotFoundError
+from pygmt.clib.loading import clib_names, load_libgmt, check_libgmt
+from pygmt.exceptions import GMTCLibError, GMTOSError, GMTCLibNotFoundError
 
 
 def test_check_libgmt():
diff --git a/pygmt/tests/test_clib_put_matrix.py b/pygmt/tests/test_clib_put_matrix.py
index c4ec764396e..781197bfc2d 100644
--- a/pygmt/tests/test_clib_put_matrix.py
+++ b/pygmt/tests/test_clib_put_matrix.py
@@ -7,10 +7,10 @@
 import xarray as xr
 
 
-from .test_clib import mock
-from .. import clib
-from ..exceptions import GMTCLibError
-from ..helpers import GMTTempFile
+from pygmt.tests.test_clib import mock
+from pygmt import clib
+from pygmt.exceptions import GMTCLibError
+from pygmt.helpers import GMTTempFile
 
 
 def test_put_matrix():
diff --git a/pygmt/tests/test_clib_put_strings.py b/pygmt/tests/test_clib_put_strings.py
index ce8816b66e8..7b21bd65c02 100644
--- a/pygmt/tests/test_clib_put_strings.py
+++ b/pygmt/tests/test_clib_put_strings.py
@@ -6,9 +6,9 @@
 import pytest
 from packaging.version import Version
 
-from .. import clib
-from ..exceptions import GMTCLibError
-from ..helpers import GMTTempFile
+from pygmt import clib
+from pygmt.exceptions import GMTCLibError
+from pygmt.helpers import GMTTempFile
 
 with clib.Session() as _lib:
     gmt_version = Version(_lib.info["version"])
diff --git a/pygmt/tests/test_clib_put_vector.py b/pygmt/tests/test_clib_put_vector.py
index ec78e1cc8ee..5ce96530ca2 100644
--- a/pygmt/tests/test_clib_put_vector.py
+++ b/pygmt/tests/test_clib_put_vector.py
@@ -6,9 +6,9 @@
 import numpy.testing as npt
 import pytest
 
-from .. import clib
-from ..exceptions import GMTCLibError, GMTInvalidInput
-from ..helpers import GMTTempFile
+from pygmt import clib
+from pygmt.exceptions import GMTCLibError, GMTInvalidInput
+from pygmt.helpers import GMTTempFile
 
 
 def test_put_vector():
diff --git a/pygmt/tests/test_coast.py b/pygmt/tests/test_coast.py
index 1f83f94d71e..d249b515d72 100644
--- a/pygmt/tests/test_coast.py
+++ b/pygmt/tests/test_coast.py
@@ -3,8 +3,8 @@
 """
 import pytest
 
-from .. import Figure
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure
+from pygmt.helpers.testing import check_figures_equal
 
 
 @pytest.mark.mpl_image_compare
diff --git a/pygmt/tests/test_colorbar.py b/pygmt/tests/test_colorbar.py
index f03002eb078..c6bc20b07ee 100644
--- a/pygmt/tests/test_colorbar.py
+++ b/pygmt/tests/test_colorbar.py
@@ -3,8 +3,8 @@
 """
 import pytest
 
-from .. import Figure
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure
+from pygmt.helpers.testing import check_figures_equal
 
 
 @pytest.mark.mpl_image_compare
diff --git a/pygmt/tests/test_config.py b/pygmt/tests/test_config.py
index 66c3e84f11a..c13a9687349 100644
--- a/pygmt/tests/test_config.py
+++ b/pygmt/tests/test_config.py
@@ -3,7 +3,7 @@
 """
 import pytest
 
-from .. import Figure, config
+from pygmt import Figure, config
 
 
 @pytest.mark.mpl_image_compare
diff --git a/pygmt/tests/test_contour.py b/pygmt/tests/test_contour.py
index 0fb80481bf5..fc567eb542a 100644
--- a/pygmt/tests/test_contour.py
+++ b/pygmt/tests/test_contour.py
@@ -8,8 +8,8 @@
 import numpy as np
 import pytest
 
-from .. import Figure
-from ..exceptions import GMTInvalidInput
+from pygmt import Figure
+from pygmt.exceptions import GMTInvalidInput
 
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
diff --git a/pygmt/tests/test_datasets.py b/pygmt/tests/test_datasets.py
index ae99b3b7922..699b14c73c5 100644
--- a/pygmt/tests/test_datasets.py
+++ b/pygmt/tests/test_datasets.py
@@ -5,14 +5,14 @@
 import numpy.testing as npt
 import pytest
 
-from ..datasets import (
+from pygmt.datasets import (
     load_japan_quakes,
     load_earth_relief,
     load_ocean_ridge_points,
     load_sample_bathymetry,
     load_usgs_quakes,
 )
-from ..exceptions import GMTInvalidInput
+from pygmt.exceptions import GMTInvalidInput
 
 
 def test_japan_quakes():
diff --git a/pygmt/tests/test_figure.py b/pygmt/tests/test_figure.py
index d3780a2eed2..1f5c79ad227 100644
--- a/pygmt/tests/test_figure.py
+++ b/pygmt/tests/test_figure.py
@@ -8,8 +8,8 @@
 import numpy.testing as npt
 import pytest
 
-from .. import Figure
-from ..exceptions import GMTInvalidInput
+from pygmt import Figure
+from pygmt.exceptions import GMTInvalidInput
 
 
 def test_figure_region():
diff --git a/pygmt/tests/test_grdcontour.py b/pygmt/tests/test_grdcontour.py
index fee5e50d9db..b3ee91c67a7 100644
--- a/pygmt/tests/test_grdcontour.py
+++ b/pygmt/tests/test_grdcontour.py
@@ -6,10 +6,10 @@
 import numpy as np
 import pytest
 
-from .. import Figure
-from ..exceptions import GMTInvalidInput
-from ..datasets import load_earth_relief
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.datasets import load_earth_relief
+from pygmt.helpers.testing import check_figures_equal
 
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
diff --git a/pygmt/tests/test_grdcut.py b/pygmt/tests/test_grdcut.py
index 7617d5156b5..e207a3941a5 100644
--- a/pygmt/tests/test_grdcut.py
+++ b/pygmt/tests/test_grdcut.py
@@ -6,10 +6,10 @@
 import pytest
 import xarray as xr
 
-from .. import grdcut, grdinfo
-from ..datasets import load_earth_relief
-from ..exceptions import GMTInvalidInput
-from ..helpers import GMTTempFile
+from pygmt import grdcut, grdinfo
+from pygmt.datasets import load_earth_relief
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import GMTTempFile
 
 
 @pytest.fixture(scope="module", name="grid")
diff --git a/pygmt/tests/test_grdimage.py b/pygmt/tests/test_grdimage.py
index 3e2b5b5ec44..4152f2d9702 100644
--- a/pygmt/tests/test_grdimage.py
+++ b/pygmt/tests/test_grdimage.py
@@ -7,10 +7,10 @@
 import xarray as xr
 from packaging.version import Version
 
-from .. import Figure, clib
-from ..datasets import load_earth_relief
-from ..exceptions import GMTInvalidInput
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure, clib
+from pygmt.datasets import load_earth_relief
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers.testing import check_figures_equal
 
 with clib.Session() as _lib:
     gmt_version = Version(_lib.info["version"])
diff --git a/pygmt/tests/test_grdinfo.py b/pygmt/tests/test_grdinfo.py
index 6991000b668..c998c5ae735 100644
--- a/pygmt/tests/test_grdinfo.py
+++ b/pygmt/tests/test_grdinfo.py
@@ -4,9 +4,9 @@
 import numpy as np
 import pytest
 
-from .. import grdinfo
-from ..datasets import load_earth_relief
-from ..exceptions import GMTInvalidInput
+from pygmt import grdinfo
+from pygmt.datasets import load_earth_relief
+from pygmt.exceptions import GMTInvalidInput
 
 
 def test_grdinfo():
diff --git a/pygmt/tests/test_grdtrack.py b/pygmt/tests/test_grdtrack.py
index 7f3e8816271..ee28de49126 100644
--- a/pygmt/tests/test_grdtrack.py
+++ b/pygmt/tests/test_grdtrack.py
@@ -7,11 +7,11 @@
 import pandas as pd
 import pytest
 
-from .. import grdtrack
-from .. import which
-from ..datasets import load_earth_relief, load_ocean_ridge_points
-from ..exceptions import GMTInvalidInput
-from ..helpers import data_kind
+from pygmt import grdtrack
+from pygmt import which
+from pygmt.datasets import load_earth_relief, load_ocean_ridge_points
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import data_kind
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
 TEMP_TRACK = os.path.join(TEST_DATA_DIR, "tmp_track.txt")
diff --git a/pygmt/tests/test_grdview.py b/pygmt/tests/test_grdview.py
index f9166b57b90..b83a37b6442 100644
--- a/pygmt/tests/test_grdview.py
+++ b/pygmt/tests/test_grdview.py
@@ -3,10 +3,10 @@
 """
 import pytest
 
-from .. import Figure, grdcut, which
-from ..exceptions import GMTInvalidInput
-from ..helpers import GMTTempFile, data_kind
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure, grdcut, which
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import GMTTempFile, data_kind
+from pygmt.helpers.testing import check_figures_equal
 
 
 @pytest.fixture(scope="module", name="region")
diff --git a/pygmt/tests/test_helpers.py b/pygmt/tests/test_helpers.py
index 66b61456376..498d85e9f62 100644
--- a/pygmt/tests/test_helpers.py
+++ b/pygmt/tests/test_helpers.py
@@ -6,8 +6,8 @@
 import pytest
 import numpy as np
 
-from ..helpers import kwargs_to_strings, GMTTempFile, unique_name, data_kind
-from ..exceptions import GMTInvalidInput
+from pygmt.helpers import kwargs_to_strings, GMTTempFile, unique_name, data_kind
+from pygmt.exceptions import GMTInvalidInput
 
 
 @pytest.mark.parametrize(
diff --git a/pygmt/tests/test_image.py b/pygmt/tests/test_image.py
index 1bc0e1ffeea..59747c7ff90 100644
--- a/pygmt/tests/test_image.py
+++ b/pygmt/tests/test_image.py
@@ -6,7 +6,7 @@
 
 import pytest
 
-from .. import Figure
+from pygmt import Figure
 
 
 TEST_IMG = os.path.join(os.path.dirname(__file__), "baseline", "test_logo.png")
diff --git a/pygmt/tests/test_info.py b/pygmt/tests/test_info.py
index e4ce734f7e6..3a9e81b9592 100644
--- a/pygmt/tests/test_info.py
+++ b/pygmt/tests/test_info.py
@@ -9,8 +9,8 @@
 import pytest
 import xarray as xr
 
-from .. import info
-from ..exceptions import GMTInvalidInput
+from pygmt import info
+from pygmt.exceptions import GMTInvalidInput
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
 POINTS_DATA = os.path.join(TEST_DATA_DIR, "points.txt")
diff --git a/pygmt/tests/test_legend.py b/pygmt/tests/test_legend.py
index 2044e7bb2a7..de429569a27 100644
--- a/pygmt/tests/test_legend.py
+++ b/pygmt/tests/test_legend.py
@@ -3,10 +3,10 @@
 """
 import pytest
 
-from .. import Figure
-from ..exceptions import GMTInvalidInput
-from ..helpers import GMTTempFile
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import GMTTempFile
+from pygmt.helpers.testing import check_figures_equal
 
 
 @pytest.mark.mpl_image_compare
diff --git a/pygmt/tests/test_logo.py b/pygmt/tests/test_logo.py
index 6cfc7f4cd0e..2a9ffde1ad0 100644
--- a/pygmt/tests/test_logo.py
+++ b/pygmt/tests/test_logo.py
@@ -1,8 +1,8 @@
 """
 Tests for fig.logo
 """
-from .. import Figure
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure
+from pygmt.helpers.testing import check_figures_equal
 
 
 @check_figures_equal()
diff --git a/pygmt/tests/test_makecpt.py b/pygmt/tests/test_makecpt.py
index 70443ee1b14..88ce2c9ba50 100644
--- a/pygmt/tests/test_makecpt.py
+++ b/pygmt/tests/test_makecpt.py
@@ -6,11 +6,11 @@
 import numpy as np
 import pytest
 
-from .. import Figure, makecpt
-from ..datasets import load_earth_relief
-from ..exceptions import GMTInvalidInput
-from ..helpers import GMTTempFile
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure, makecpt
+from pygmt.datasets import load_earth_relief
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import GMTTempFile
+from pygmt.helpers.testing import check_figures_equal
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
 POINTS_DATA = os.path.join(TEST_DATA_DIR, "points.txt")
diff --git a/pygmt/tests/test_meca.py b/pygmt/tests/test_meca.py
index 4776be1e5b1..6eae638382b 100644
--- a/pygmt/tests/test_meca.py
+++ b/pygmt/tests/test_meca.py
@@ -7,7 +7,7 @@
 import pytest
 from pygmt.helpers import GMTTempFile
 
-from .. import Figure
+from pygmt import Figure
 
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
diff --git a/pygmt/tests/test_plot.py b/pygmt/tests/test_plot.py
index cef4dae5448..76f4754e366 100644
--- a/pygmt/tests/test_plot.py
+++ b/pygmt/tests/test_plot.py
@@ -11,10 +11,10 @@
 
 import pytest
 
-from .. import Figure
-from ..exceptions import GMTInvalidInput
-from ..helpers import GMTTempFile
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import GMTTempFile
+from pygmt.helpers.testing import check_figures_equal
 
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
diff --git a/pygmt/tests/test_plot3d.py b/pygmt/tests/test_plot3d.py
index ba0590b1a1c..2707915adb4 100644
--- a/pygmt/tests/test_plot3d.py
+++ b/pygmt/tests/test_plot3d.py
@@ -6,10 +6,10 @@
 import numpy as np
 import pytest
 
-from .. import Figure
-from ..exceptions import GMTInvalidInput
-from ..helpers import GMTTempFile
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import GMTTempFile
+from pygmt.helpers.testing import check_figures_equal
 
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
diff --git a/pygmt/tests/test_psconvert.py b/pygmt/tests/test_psconvert.py
index 47b915462bd..3622949f8ed 100644
--- a/pygmt/tests/test_psconvert.py
+++ b/pygmt/tests/test_psconvert.py
@@ -3,7 +3,7 @@
 """
 import os
 
-from .. import Figure
+from pygmt import Figure
 
 
 def test_psconvert():
diff --git a/pygmt/tests/test_session_management.py b/pygmt/tests/test_session_management.py
index 47c8edc78c1..2c71fe5a889 100644
--- a/pygmt/tests/test_session_management.py
+++ b/pygmt/tests/test_session_management.py
@@ -3,8 +3,8 @@
 """
 import os
 
-from ..session_management import begin, end
-from ..clib import Session
+from pygmt.session_management import begin, end
+from pygmt.clib import Session
 
 
 def test_begin_end():
diff --git a/pygmt/tests/test_sphinx_gallery.py b/pygmt/tests/test_sphinx_gallery.py
index accca7e7fdb..c0aab17e764 100644
--- a/pygmt/tests/test_sphinx_gallery.py
+++ b/pygmt/tests/test_sphinx_gallery.py
@@ -10,8 +10,8 @@
 except ImportError:
     sphinx_gallery = None
 
-from ..figure import Figure, SHOWED_FIGURES
-from ..sphinx_gallery import PyGMTScraper
+from pygmt.figure import Figure, SHOWED_FIGURES
+from pygmt.sphinx_gallery import PyGMTScraper
 
 
 @pytest.mark.skipif(sphinx_gallery is None, reason="requires sphinx-gallery")
diff --git a/pygmt/tests/test_surface.py b/pygmt/tests/test_surface.py
index 08ad8628244..8bea85a61b1 100644
--- a/pygmt/tests/test_surface.py
+++ b/pygmt/tests/test_surface.py
@@ -6,11 +6,11 @@
 import xarray as xr
 import pytest
 
-from .. import surface
-from .. import which
-from ..datasets import load_sample_bathymetry
-from ..exceptions import GMTInvalidInput
-from ..helpers import data_kind
+from pygmt import surface
+from pygmt import which
+from pygmt.datasets import load_sample_bathymetry
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import data_kind
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
 TEMP_GRID = os.path.join(TEST_DATA_DIR, "tmp_grid.nc")
diff --git a/pygmt/tests/test_text.py b/pygmt/tests/test_text.py
index e23a04896f9..ef04ac526b9 100644
--- a/pygmt/tests/test_text.py
+++ b/pygmt/tests/test_text.py
@@ -7,10 +7,10 @@
 import pytest
 import numpy as np
 
-from .. import Figure
-from ..exceptions import GMTCLibError, GMTInvalidInput
-from ..helpers import GMTTempFile
-from ..helpers.testing import check_figures_equal
+from pygmt import Figure
+from pygmt.exceptions import GMTCLibError, GMTInvalidInput
+from pygmt.helpers import GMTTempFile
+from pygmt.helpers.testing import check_figures_equal
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
 POINTS_DATA = os.path.join(TEST_DATA_DIR, "points.txt")
diff --git a/pygmt/tests/test_which.py b/pygmt/tests/test_which.py
index 407127b9551..92fd05bce73 100644
--- a/pygmt/tests/test_which.py
+++ b/pygmt/tests/test_which.py
@@ -5,8 +5,8 @@
 
 import pytest
 
-from .. import which
-from ..helpers import unique_name
+from pygmt import which
+from pygmt.helpers import unique_name
 
 
 def test_which():
diff --git a/pygmt/tests/test_x2sys_cross.py b/pygmt/tests/test_x2sys_cross.py
index 50577b738df..445c5ded0da 100644
--- a/pygmt/tests/test_x2sys_cross.py
+++ b/pygmt/tests/test_x2sys_cross.py
@@ -10,10 +10,10 @@
 import pandas as pd
 import pytest
 
-from .. import x2sys_cross, x2sys_init
-from ..datasets import load_sample_bathymetry
-from ..exceptions import GMTInvalidInput
-from ..helpers import data_kind
+from pygmt import x2sys_cross, x2sys_init
+from pygmt.datasets import load_sample_bathymetry
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import data_kind
 
 
 @pytest.fixture(name="mock_x2sys_home")
diff --git a/pygmt/tests/test_x2sys_init.py b/pygmt/tests/test_x2sys_init.py
index a6c608e57e1..8d5db494a24 100644
--- a/pygmt/tests/test_x2sys_init.py
+++ b/pygmt/tests/test_x2sys_init.py
@@ -7,7 +7,7 @@
 
 import pytest
 
-from .. import x2sys_init
+from pygmt import x2sys_init
 
 
 @pytest.fixture(name="mock_x2sys_home")
diff --git a/pygmt/x2sys.py b/pygmt/x2sys.py
index e3803ba7806..da13e745acd 100644
--- a/pygmt/x2sys.py
+++ b/pygmt/x2sys.py
@@ -7,9 +7,9 @@
 
 import pandas as pd
 
-from .clib import Session
-from .exceptions import GMTInvalidInput
-from .helpers import (
+from pygmt.clib import Session
+from pygmt.exceptions import GMTInvalidInput
+from pygmt.helpers import (
     GMTTempFile,
     build_arg_string,
     data_kind,