Revert numpy warnings workaround (#6025)

* Revert "Workaround to suporess (some) import warnings from NumPy"

This has been fixed upstream in Aesara and is therefore no longer necessary.

pymc/__init__.py

@@ -16,7 +16,6 @@
 __version__ = "4.1.4"
 
 import logging
-import sys
 
 _log = logging.getLogger("pymc")
 
@@ -27,74 +26,6 @@
         _log.addHandler(handler)
 
 
-def __suppress_aesara_import_warnings():
-    """This is a workaround to suppress nonlethal NumPy warnings.
-
-    Some more printouts remain. See https://github.com/numpy/numpy/issues/21942
-
-    Remove this once https://github.com/aesara-devs/aesara/pull/980 is merged.
-    """
-    # We need to catch warnings as in some cases NumPy prints
-    # stuff that we don't want the user to see.
-    import io
-    import warnings
-
-    from contextlib import redirect_stderr, redirect_stdout
-
-    import numpy.distutils.system_info
-
-    class NumpyCompatibleStdoutStringIO(io.StringIO):
-        """Used as a temporary replacement of sys.stdout to capture Numpy's output.
-        We want to simply use io.StringIO, but this doesn't work because
-        Numpy expects the .encoding attribute to be a string. For io.StringIO,
-        this attribute is set to None and cannot be modified, hence the need for
-        this subclass.
-        (See forward_bytes_to_stdout in numpy.distutils.exec_command.)
-        """
-
-        encoding = sys.stdout.encoding
-
-    # Known executables which trigger false-positive warnings when not found.
-    # Ref: <https://github.com/conda-forge/aesara-feedstock/issues/54>
-    executables = ["g77", "f77", "ifort", "ifl", "f90", "DF", "efl"]
-
-    # The Numpy function which defines blas_info emits false-positive warnings.
-    # In what follows we capture these warnings and ignore them.
-    with warnings.catch_warnings(record=True):
-        # The warnings about missing executables don't use Python's "warnings"
-        # mechanism, and thus are not filtered by the catch_warnings context
-        # above. On Linux the warnings are printed to stderr, but on Windows
-        # they are printed to stdout. Thus we capture and filter both stdout
-        # and stderr.
-        stdout_sio, stderr_sio = NumpyCompatibleStdoutStringIO(), io.StringIO()
-        with redirect_stdout(stdout_sio), redirect_stderr(stderr_sio):
-            numpy.distutils.system_info.get_info("blas_opt")
-
-        # Print any unfiltered messages to stdout and stderr.
-        # (We hope that, beyond what we filter out, there should have been
-        # no messages printed to stdout or stderr. In case there were messages,
-        # we want to print them for the user to see. In what follows, we print
-        # the stdout messages followed by the stderr messages. This means that
-        # messages will be printed in the wrong order in the case that
-        # there is output to both stdout and stderr, and the stderr output
-        # doesn't come at the end.)
-        for captured_buffer, print_destination in (
-            (stdout_sio, sys.stdout),
-            (stderr_sio, sys.stderr),
-        ):
-            raw_lines = captured_buffer.getvalue().splitlines()
-            filtered_lines = [
-                line
-                for line in raw_lines
-                # Keep a line when none of the warnings are found within
-                # (equiv. when all of the warnings are not found within).
-                if all(f"Could not locate executable {exe}" not in line for exe in executables)
-            ]
-            for line in filtered_lines:
-                print(line, file=print_destination)
-    return
-
-
 def __set_compiler_flags():
     # Workarounds for Aesara compiler problems on various platforms
     import aesara
@@ -114,8 +45,6 @@ def __set_compiler_flags():
     aesara.config.gcc__cxxflags = augmented
 
 
-if sys.platform == "win32":
-    __suppress_aesara_import_warnings()
 __set_compiler_flags()
 
 from pymc import gp, ode, sampling