[Strategy] Adjust the hints for import hyperopt and sigopt

neural_compressor/contrib/strategy/sigopt.py

@@ -88,7 +88,13 @@ def __init__(self, model, conf, q_dataloader, q_func=None,
             try:
                 import sigopt
             except ImportError:
-                ImportError(f"Please install sigopt for using {strategy_name} strategy.")
+                try:
+                    import subprocess
+                    import sys
+                    subprocess.check_call([sys.executable, "-m", "pip", "install", "sigopt"])
+                    import sigopt # pylint: disable=import-error
+                except:
+                    assert False, "Unable to import sigopt from the local environment."
         else:
             pass
         # SigOpt init

neural_compressor/contrib/strategy/tpe.py

@@ -91,7 +91,13 @@ def __init__(self, model, conf, q_dataloader, q_func=None,
             try:
                 import hyperopt
             except ImportError:
-                raise ImportError(f"Please install hyperopt for using {strategy_name} strategy.")
+                try:
+                    import subprocess
+                    import sys
+                    subprocess.check_call([sys.executable, "-m", "pip", "install", "hyperopt"])
+                    import hyperopt # pylint: disable=import-error
+                except:
+                    assert False, "Unable to import hyperopt from the local environment."
         else:
             pass
         self.hpopt_search_space = None

test/requirements.txt

@@ -13,8 +13,6 @@ pillow>=8.2.0
 transformers<=4.12.3; python_version < '3.10'
 transformers==4.16.0; python_version == '3.10'
 tensorflow_model_optimization
-sigopt
-hyperopt
 horovod
 tensorflow-addons
 onnxruntime-extensions; python_version < '3.10'