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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def find_version(fname):
 """Attempts to find the version number in the file names fname. Raises RuntimeError if not found. """

    version = ""
    with open(fname, "r") as fp:
        reg = re.compile(r'__version__ = [\'"]([^\'"]*)[\'"]')
        for line in fp:
            m = reg.match(line)
            if m:
                version = m.group(1)
                break
    if not version:
        raise RuntimeError("Cannot find version information")
    return version