Source code for pygmt

# pylint: disable=missing-docstring
#
# The main API for PyGMT.
#
# All of PyGMT is operated on a "modern mode session" (new to GMT6). When you
# import the pygmt library, a new session will be started automatically. The
# session will be closed when the current Python process terminates. Thus, the
# Python API does not expose the `gmt begin` and `gmt end` commands.

import atexit as _atexit

from ._version import get_versions as _get_versions

# Import modules to make the high-level GMT Python API
from .session_management import begin as _begin, end as _end
from .figure import Figure, SubPlot
from .filtering import blockmedian
from .gridding import surface
from .sampling import grdtrack
from .mathops import makecpt
from .modules import config, info, grdinfo, which
from .pygmtplot import subplots
from . import datasets


# Get the version number through versioneer
__version__ = _get_versions()["version"]
__commit__ = _get_versions()["full-revisionid"]

# Start our global modern mode session
_begin()
# Tell Python to run _end when shutting down
_atexit.register(_end)


def print_clib_info():
    """
    Print information about the GMT shared library that we can find.

    Includes the GMT version, default values for parameters, the path to the
    ``libgmt`` shared library, and GMT directories.
    """
    from .clib import Session

    lines = ["Loaded libgmt:"]
    with Session() as ses:
        for key in sorted(ses.info):
            lines.append("  {}: {}".format(key, ses.info[key]))
    print("\n".join(lines))


def test(doctest=True, verbose=True, coverage=False, figures=True):
    """
    Run the test suite.

    Uses `pytest <http://pytest.org/>`__ to discover and run the tests. If you
    haven't already, you can install it with `conda
    <http://conda.pydata.org/>`__ or `pip <https://pip.pypa.io/en/stable/>`__.

    Parameters
    ----------

    doctest : bool
        If ``True``, will run the doctests as well (code examples that start
        with a ``>>>`` in the docs).
    verbose : bool
        If ``True``, will print extra information during the test run.
    coverage : bool
        If ``True``, will run test coverage analysis on the code as well.
        Requires ``pytest-cov``.
    figures : bool
        If ``True``, will test generated figures against saved baseline
        figures.  Requires ``pytest-mpl`` and ``matplotlib``.

    Raises
    ------

    AssertionError
        If pytest returns a non-zero error code indicating that some tests have
        failed.

    """
    import pytest

    print_clib_info()

    package = __name__

    args = []
    if verbose:
        args.append("-vv")
    if coverage:
        args.append("--cov={}".format(package))
        args.append("--cov-report=term-missing")
    if doctest:
        args.append("--doctest-modules")
    if figures:
        args.append("--mpl")
    args.append("--pyargs")
    args.append(package)
    status = pytest.main(args)
    assert status == 0, "Some tests have failed."