Function count_lines_in_py_file

IPython/core/tbtools.py:25–38

Given a filename, returns the number of lines in the file if it ends with the extension ".py". Otherwise, returns 0.

(filename: str)

@functools.lru_cache
def count_lines_in_py_file(filename: str) -> int:
    """
    Given a filename, returns the number of lines in the file
    if it ends with the extension ".py". Otherwise, returns 0.
    """
    if not filename.endswith(".py"):
        return 0
    else:
        try:
            with open(filename, "r") as file:
                s = sum(1 for line in file)
        except UnicodeError:
            return 0
    return s


def get_line_number_of_frame(frame: types.FrameType) -> int: