Changes from comments on #3300; add newsfragment

Author: fselmo

newsfragments/3300.feature.rst

@@ -0,0 +1 @@
+Use in-house exception wrappers for common Python exceptions, such as ``ValueError``, ``TypeError``, ``AttributeError``, and ``AssertionError``, for better control over exception handling.

tests/library_wide_test.py

@@ -18,15 +18,13 @@ def test_no_default_exceptions_are_raised_within_web3py():
             if file.endswith(".py"):
                 file_path = os.path.join(root, file)
                 with open(file_path, "r", encoding="utf-8") as f:
-                    line_number = 0
-                    for line in f:
-                        line_number += 1
+                    for idx, line in enumerate(f):
                         for exception in DEFAULT_EXCEPTIONS:
                             exception_name = exception.__name__
                             if f"raise {exception_name}" in line:
                                 raise Exception(
-                                    f"{exception_name} raised in web3.py. "
+                                    f"``{exception_name}`` raised in web3.py. "
                                     f"Replace with ``Web3{exception_name}``:\n"
                                     f"    file_path:{file_path}\n"
-                                    f"    line:{line_number}"
+                                    f"    line:{idx + 1}"
                                 )