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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 extract_examples_from_readme_rst(indent=' '):
 """Extract examples from this project's README.rst file. Parameters indent: str Prepend each line with this string. Should contain some number of spaces. Returns ------- str The examples. Notes ----- Quite fragile, depends on named labels inside the README.rst file. """

    curr_dir = os.path.dirname(os.path.abspath(__file__))
    readme_path = os.path.join(curr_dir, '..', 'README.rst')
    try:
        with open(readme_path) as fin:
            lines = list(fin)
        start = lines.index('.. _doctools_before_examples:\n')
        end = lines.index(".. _doctools_after_examples:\n")
        lines = lines[start+4:end-2]
        return ''.join([indent + re.sub('^  ', '', l) for l in lines])
    except Exception:
        return indent + 'See README.rst'