This Python script prints line numbers of raise in except clause in Python language.

search_raise_in_except.py

# usage:
#
# To find raises, simply run:
# $ python search_raise_in_except.py target.py
#
# In case you want to find raises in multiple files in current directory, run:
# $ for i in $(find . -type f -name "*.py"); do; python search_raise_in_except.py $i; done`

import _ast
import ast
import sys

        
def walk(node, in_except=False, filename=""):
    
    if isinstance(node, _ast.ExceptHandler):
        for child in ast.iter_child_nodes(node):
            walk(child, True, filename)
        
    elif isinstance(node, _ast.Raise) and in_except:
        print(f"{filename}#L{node.lineno}")
        # No more digging if `raise` is found in `except` clause,
        # so don't call walk(child, in_except, filename) here.
        
    else:
        for child in ast.iter_child_nodes(node):
            walk(child, in_except, filename)


def main():
    filename = sys.argv[1]

    with open(filename, "r") as f:
        code = f.read()

    root_node = ast.parse(code, filename)
    walk(root_node, filename=filename)
    

if __name__ == '__main__':
    main()