Fixes #1717 - ignore FutureWarnings which are raised by pandas (#1719)

And probably other modules too.

5 files changed, 49 insertions, 2 deletions

diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index 79e254f6..b4a7aa0c 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -175,6 +175,12 @@ Contributors
 - Alexander Scheel <alexander.m.scheel@gmail.com>
 - Alexander Presnyakov <flagist0@gmail.com>
 - Ahmed Azzaoui <ahmed.azzaoui@engie.com>
+- nathannaveen <42319948+nathannaveen@users.noreply.github.com>
+- adam-grant-hendry <59346180+adam-grant-hendry@users.noreply.github.com>
+- Deepyaman Datta <deepyaman.datta@utexas.edu>
+- Batuhan Taskaya <isidentical@gmail.com>
+- Alexander Scheel <alexander.m.scheel@gmail.com>
+- Tim Paine <t.paine154@gmail.com>
 
 Co-Author
 ---------
diff --git a/ChangeLog b/ChangeLog
index 7b84be1a..f87038f9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -12,6 +12,9 @@ What's New in astroid 2.12.3?
 =============================
 Release date: TBA
 
+* Fix unhandled `FutureWarning` from pandas import in cython modules
+
+  Closes #1717
 
 
 What's New in astroid 2.12.2?
diff --git a/astroid/raw_building.py b/astroid/raw_building.py
index 93e3ff55..8cff41d3 100644
--- a/astroid/raw_building.py
+++ b/astroid/raw_building.py
@@ -388,9 +388,9 @@ class InspectBuilder:
             pypy__class_getitem__ = IS_PYPY and name == "__class_getitem__"
             try:
                 with warnings.catch_warnings():
-                    warnings.simplefilter("error")
+                    warnings.simplefilter("ignore")
                     member = getattr(obj, name)
-            except (AttributeError, DeprecationWarning):
+            except (AttributeError):
                 # damned ExtensionClass.Base, I know you're there !
                 attach_dummy_node(node, name)
                 continue
diff --git a/tests/testdata/python3/data/fake_module_with_warnings.py b/tests/testdata/python3/data/fake_module_with_warnings.py
new file mode 100644
index 00000000..ac818153
--- /dev/null
+++ b/tests/testdata/python3/data/fake_module_with_warnings.py
@@ -0,0 +1,22 @@
+'''
+This is a mock of a module like Pandas, which can throw warnings for deprecated attributes
+'''
+import warnings
+
+
+def __dir__():
+    # GH43028
+    # Int64Index etc. are deprecated, but we still want them to be available in the dir.
+    # Remove in Pandas 2.0, when we remove Int64Index etc. from the code base.
+    return list(globals().keys()) + ["Float64Index"]
+
+
+def __getattr__(name):
+    if name == "Float64Index":
+        warnings.warn("This is what pandas would do", FutureWarning, stacklevel=2)
+        return 5
+    raise AttributeError(f"module 'pandas' has no attribute '{name}'")
+
+
+__all__ = ["Float64Index"]  # pylint: disable=E0603
+__doc__ = ""
diff --git a/tests/unittest_raw_building.py b/tests/unittest_raw_building.py
index 387a3f43..59bd6ce1 100644
--- a/tests/unittest_raw_building.py
+++ b/tests/unittest_raw_building.py
@@ -2,11 +2,14 @@
 # For details: https://github.com/PyCQA/astroid/blob/main/LICENSE
 # Copyright (c) https://github.com/PyCQA/astroid/blob/main/CONTRIBUTORS.txt
 
+import types
 import unittest
 
 import _io
 import pytest
 
+# A fake module to simulate pandas in unittest below
+import tests.testdata.python3.data.fake_module_with_warnings as fm
 from astroid.builder import AstroidBuilder
 from astroid.const import IS_PYPY
 from astroid.raw_building import (
@@ -86,6 +89,19 @@ class RawBuildingTC(unittest.TestCase):
         buffered_reader = module.getattr("BufferedReader")[0]
         self.assertEqual(buffered_reader.root().name, "io")
 
+    def test_build_function_deepinspect_deprecation(self) -> None:
+        # Tests https://github.com/PyCQA/astroid/issues/1717
+        # When astroid deep inspection of modules raises
+        # attribute errors when getting all attributes
+        # Create a mock module to simulate a Cython module
+        m = types.ModuleType("test")
+
+        # Attach a mock of pandas with the same behavior
+        m.pd = fm
+
+        # This should not raise an exception
+        AstroidBuilder().module_build(m, "test")
+
 
 if __name__ == "__main__":
     unittest.main()