fix: Add helpful error messages for common tool import typos

- Add __getattr__ to crewai_tools/__init__.py to catch common typos
- Provide helpful error message when users try to import tools with lowercase 't' (e.g., PGSearchtool instead of PGSearchTool)
- Add specific error for PGSearchTool indicating it's under development
- Add comprehensive tests to verify error handling

Fixes #3776

Co-Authored-By: João <joao@crewai.com>

lib/crewai-tools/src/crewai_tools/__init__.py

@@ -288,3 +288,28 @@ __all__ = [
 ]
 
 __version__ = "1.1.0"
+
+
+def __getattr__(name: str):
+    """
+    Catch common typos and provide helpful error messages.
+    
+    This function is called when an attribute is not found in the module.
+    It helps users who make common typos when importing tools.
+    """
+    if name == "PGSearchTool":
+        raise NotImplementedError(
+            f"'{name}' is currently under development and not yet available. "
+            f"Please check the CrewAI documentation for updates on when this tool will be released."
+        )
+    
+    if name.endswith("tool") and not name.endswith("Tool"):
+        correct_name = name[:-4] + "Tool"
+        if correct_name in __all__ or correct_name == "PGSearchTool":
+            raise ImportError(
+                f"Cannot import name '{name}' from 'crewai_tools'. "
+                f"Did you mean '{correct_name}'? "
+                f"Note: Tool names use capital 'T' in 'Tool'."
+            )
+    
+    raise AttributeError(f"module 'crewai_tools' has no attribute '{name}'")

lib/crewai-tools/tests/test_import_errors.py

@@ -0,0 +1,54 @@
+import pytest
+import crewai_tools
+
+
+def test_typo_in_tool_name_lowercase_t():
+    """Test that accessing a tool with lowercase 't' in 'tool' provides a helpful error message."""
+    with pytest.raises(ImportError) as exc_info:
+        getattr(crewai_tools, "CSVSearchtool")
+    
+    assert "Cannot import name 'CSVSearchtool' from 'crewai_tools'" in str(exc_info.value)
+    assert "Did you mean 'CSVSearchTool'?" in str(exc_info.value)
+    assert "Tool names use capital 'T' in 'Tool'" in str(exc_info.value)
+
+
+def test_typo_pgsearchtool_lowercase_t():
+    """Test that accessing PGSearchtool (with lowercase 't') provides a helpful error message."""
+    with pytest.raises(ImportError) as exc_info:
+        getattr(crewai_tools, "PGSearchtool")
+    
+    assert "Cannot import name 'PGSearchtool' from 'crewai_tools'" in str(exc_info.value)
+    assert "Did you mean 'PGSearchTool'?" in str(exc_info.value)
+
+
+def test_pgsearchtool_not_implemented():
+    """Test that accessing PGSearchTool (correct spelling) shows it's not yet implemented."""
+    with pytest.raises(NotImplementedError) as exc_info:
+        getattr(crewai_tools, "PGSearchTool")
+    
+    assert "'PGSearchTool' is currently under development" in str(exc_info.value)
+    assert "not yet available" in str(exc_info.value)
+
+
+def test_nonexistent_tool():
+    """Test that accessing a completely nonexistent tool gives a standard AttributeError."""
+    with pytest.raises(AttributeError) as exc_info:
+        getattr(crewai_tools, "NonExistentTool")
+    
+    assert "module 'crewai_tools' has no attribute 'NonExistentTool'" in str(exc_info.value)
+
+
+def test_multiple_typos():
+    """Test multiple common typos to ensure they all get helpful messages."""
+    typos = [
+        ("FileReadtool", "FileReadTool"),
+        ("PDFSearchtool", "PDFSearchTool"),
+        ("MySQLSearchtool", "MySQLSearchTool"),
+    ]
+    
+    for typo, correct in typos:
+        with pytest.raises(ImportError) as exc_info:
+            getattr(crewai_tools, typo)
+        
+        assert f"Cannot import name '{typo}' from 'crewai_tools'" in str(exc_info.value)
+        assert f"Did you mean '{correct}'?" in str(exc_info.value)