Code scanning

.codeclimate.yml

@@ -40,8 +40,7 @@ plugins:
 
 exclude_patterns:
 - "src/metpy/io/_nexrad_msgs/msg*.py"
-- "src/metpy/io/metar_parse.peg"
-- "src/metpy/io/metar_parser.py"
+- "src/metpy/io/_metar_parser/*"
 - "docs/**/*"
 - "staticdata/**/*"
 - "tests/*/baseline/*"

.github/codeql/codeql-config.yml

@@ -4,6 +4,6 @@ queries:
   - uses: security-and-quality
 
 paths-ignore:
-  - src/metpy/io/metar_parser.py
+  - src/metpy/io/_metar_parser
   - tutorials
   - examples

.github/workflows/code-analysis.yml

@@ -6,6 +6,11 @@ on:
   pull_request:
     # The branches below must be a subset of the branches above
     branches: [main]
+    paths:
+      - '**.py'
+      - '.github/codeql/**'
+      - '.github/workflows/code-analysis.yml'
+
   schedule:
     - cron: '0 8 * * 6'
 

.lgtm.yml

@@ -1,6 +1,6 @@
 path_classifiers:
     generated:
-        - src/metpy/io/metar_parser.py
+        - src/metpy/io/_metar_parser/metar_parser.py
     library:
         - src/metpy/deprecation.py
     test:

setup.cfg

@@ -79,7 +79,7 @@ multiline-quotes = double
 rst-roles = class, data, doc, func, meth, mod
 rst-directives = plot, versionchanged
 docstring-convention = numpy
-exclude = docs build src/metpy/io/metar_parser.py
+exclude = docs build src/metpy/io/_metar_parser/metar_parser.py
 select = A B C D E F G H I J K L M N O P Q R S T U V W X Y Z B902
 ignore = F405 W503 RST902 SIM106
 per-file-ignores = examples/*.py: D MPY001 T003 T001

src/metpy/io/metar.py

@@ -10,8 +10,8 @@
 import numpy as np
 import pandas as pd
 
+from ._metar_parser.metar_parser import parse, ParseError
 from ._tools import open_as_needed
-from .metar_parser import parse, ParseError
 from .station_data import station_info
 from ..package_tools import Exporter
 from ..units import units

src/metpy/io/nexrad.py

@@ -11,7 +11,6 @@
 import pathlib
 import re
 import struct
-from struct import Struct
 from xdrlib import Unpacker
 
 import numpy as np
@@ -451,7 +450,7 @@ def _decode_msg5(self, msg_hdr):
     def _decode_msg13(self, msg_hdr):
         data = self._buffer_segment(msg_hdr)
         if data:
-            data = Struct(f'>{len(data) // 2:d}h').unpack(data)
+            data = struct.Struct(f'>{len(data) // 2:d}h').unpack(data)
             # Legacy format doesn't have date/time and has fewer azimuths
             if data[0] <= 5:
                 num_el = data[0]
@@ -494,7 +493,7 @@ def _decode_msg15(self, msg_hdr):
         # will be returned concatenated when this is the case
         data = self._buffer_segment(msg_hdr)
         if data:
-            date, time, num_el, *data = Struct(f'>{len(data) // 2:d}h').unpack(data)
+            date, time, num_el, *data = struct.Struct(f'>{len(data) // 2:d}h').unpack(data)
             if num_el == 0:
                 log.info('Message 15 num_el is 0--likely legacy clutter filter notch width. '
                          'Skipping...')
@@ -665,6 +664,8 @@ def _buffer_segment(self, msg_hdr):
         if msg_hdr.num_segments == len(bufs):
             self._msg_buf.pop(msg_hdr.msg_type)
             return b''.join(bytes(item[1]) for item in sorted(bufs.items()))
+        else:
+            return None
 
     def _add_sweep(self, hdr):
         if not self.sweeps and not hdr.rad_status & START_VOLUME:
@@ -1754,6 +1755,7 @@ def __init__(self, filename):
                 self._buffer.splice(comp_start, decomp_data)
                 assert self._buffer.check_remains(self.metadata['uncompressed_size'])
             except OSError:
+                # Compression didn't work, so we just assume it wasn't actually compressed.
                 pass
 
         # Unpack the various blocks, if present. The factor of 2 converts from

src/metpy/pandas.py

@@ -3,12 +3,10 @@
 # SPDX-License-Identifier: BSD-3-Clause
 """Provide accessors to enhance interoperability between Pandas and MetPy."""
 import functools
-import logging
 
 import pandas as pd
 
 __all__ = []
-log = logging.getLogger(__name__)
 
 
 def preprocess_pandas(func):

src/metpy/plots/cartopy_utils.py

@@ -75,6 +75,6 @@ def import_cartopy():
 class CartopyStub:
     """Fail if a CartoPy attribute is accessed."""
 
-    def __getattr__(self, item):
+    def __getattr__(self, name):
         """Raise an error on any attribute access."""
-        raise RuntimeError(f'CartoPy is required to use this feature ({item}).')
+        raise AttributeError(f'Cannot use {name} without Cartopy installed.')

src/metpy/plots/wx_symbols.py

@@ -63,6 +63,7 @@ def wx_code_to_numeric(codes):
                     wx_sym_list.append(wx_code_map[wxcode[opt]])
                     break
                 except KeyError:
+                    # That option didn't work--move on.
                     pass
             else:
                 wx_sym_list.append(0)

tests/calc/test_basic.py

@@ -317,41 +317,6 @@ def test_geopotential_to_height_32bit():
     assert_almost_equal(geopotential_to_height(geopot), truth, 2)
 
 
-# class TestIrrad(object):
-#    def test_basic(self):
-#        'Test the basic solar irradiance calculation.'
-#        from datetime import date
-
-#        d = date(2008, 9, 28)
-#        lat = 35.25
-#        hours = np.linspace(6,18,10)
-
-#        s = solar_irradiance(lat, d, hours)
-#        values = np.array([0., 344.1, 682.6, 933.9, 1067.6, 1067.6, 933.9,
-#            682.6, 344.1, 0.])
-#        assert_array_almost_equal(s, values, 1)
-
-#    def test_scalar(self):
-#        from datetime import date
-#        d = date(2008, 9, 28)
-#        lat = 35.25
-#        hour = 9.5
-#        s = solar_irradiance(lat, d, hour)
-#        assert_almost_equal(s, 852.1, 1)
-
-#    def test_invalid(self):
-#        'Test for values that should be masked.'
-#        from datetime import date
-#        d = date(2008, 9, 28)
-#        lat = 35.25
-#        hours = np.linspace(0,22,12)
-#        s = solar_irradiance(lat, d, hours)
-
-#        mask = np.array([ True,  True,  True,  True, False, False, False,
-#            False, False, True,  True,  True])
-#        assert_array_equal(s.mask, mask)
-
-
 def test_pressure_to_heights_basic():
     """Test basic pressure to height calculation for standard atmosphere."""
     pressures = np.array([975.2, 987.5, 956., 943.]) * units.mbar

tests/plots/test_cartopy_utils.py

@@ -80,7 +80,7 @@ def test_cartopy_stub(monkeypatch):
     monkeypatch.setitem(sys.modules, 'cartopy.crs', None)
 
     ccrs = cartopy_utils.import_cartopy()
-    with pytest.raises(RuntimeError, match='CartoPy is required'):
+    with pytest.raises(AttributeError, match='without Cartopy'):
         ccrs.PlateCarree()
 
 

tests/test_xarray.py

@@ -1069,8 +1069,8 @@ def test_update_attribute_dictionary(test_ds_generic):
 def test_update_attribute_callable(test_ds_generic):
     """Test update_attribute using callable."""
     def even_ascii(varname, **kwargs):
-        if ord(varname[0]) % 2 == 0:
-            return 'yes'
+        return 'yes' if ord(varname[0]) % 2 == 0 else None
+
     result = test_ds_generic.metpy.update_attribute('even', even_ascii)
 
     # Test attribute updates